GREENWICH PHOTO-HELIOGRAPHIC RESULTS 1955
LOXDOX HER MAJESTY'S STATIONERY OFFICE Price i I2s. 6d. net
RESULTS OF MEASURES MADE AT THE ROYAL GREENWICH
OBSERVATORY
OF
PHOTOGRAPHS OF THE SUN TAKEN AT HERSTMONCEUX,THE CAPE AMD KODAIKANAL IN THE TEAR
U N D E R THE D I R E C T I O N OF
SIR HAROLD SPENCER JONES, Sc.D., F.R.S. ASTRONOMER
ROYAL
Published by Order oftlte Hoard of Admiralty in Obedience lo Her А1а)е.\1у'ч Command
LONDON HER M A J E S T Y ' S S T A T I O N E R Y O F F I C E
Blank page retained for pagination
GREENWICH PHOTO-HELIOGRAPHIC RESULTS
INTRODUCTION
The photographs from which these measures were made were taken at the Royal Greenwich Observatory, the Royal Observatory, Cape of Good Hope, and the Kodaikanal Observatory, Southern India. The photographs of the Sun obtained at Greenwich were taken w i t h the 4-inch Photoheliograph, of which the original object-glass had been replaced in 1910 by a Grubb photographic objective. The equivalent focal length of the photoheliograph with its present enlarging system (supplied in 1926 by Ross, L t d . ) is 67^ feet, the diameter of the Sun's image at the secondary focus being approximately 7^ inches. On 1949 May 2 this photoheliograph was moved from Greenwich to Herstmonceux Castle, Sussex. Subsequent photographs continue to be designated "Greenwich" photographs. The photographs of the Sun obtained at the Cape Observatory were taken under the superintendence of Her M a j e s t y ' s Astronomer at the Cape, Dr. R. H. Stoy, and those from Kodaikanal under the superintendence of the Director, Dr. A. K. Das. At the Cape Observatory the instrument employed was a 4-inch photoheliograph giving an image of the Sun about 7^ inches in diameter; at Kodaikanal a Cooke photo-visual o b j e c t i v e of 6 inches aperture was used, the image of the Sun which was obtained being of about the same size. Photographs of the Sun were available for measurement on 363 days in 1955, those finally selected for measurement being supplied by the different observatories as under: Greenwich
269
Kodaikanal Total
3 363
For the two missing days, copies of original solar negatives were kindly supplied by the Mount Wilson Observatory, California, and the Fraunhofer I n s t i t u t , Freiburg im Breisgau, Western Germany. The names of the measurers of the photographs for the year 1955 were as follows: H. Barton
P. A. Wayman
N. Rhodes
P. S. Laurie
A. S. Milsom
Miss B. J. Denman
At the p r i m a r y f o c u s of the photoheliographs at Greenwich and the Cape two spider-wires are fixed by which the zero of position-angles on the photographs can be determined. These wires are inclined at an angle of 45° to the celestial equator. In the K o d a i k a n a l instrume.nt there is one w i r e f i x e d p a r a l l e l to the e q u a t o r .
IV
INTRODUCTION то GREENWICH PHOTO.HELIOGRAPHIC RESULTS, 1955. The precise zero of position-angles for ^he photoheliographs has been determined by three different methods. (i) Zero Photographs. Plates were exposed twice, with an interval of about 100 seconds between the two exposures, the instrument being firmly clamped. Two images of the Sun, overlapping each other by about a fifth part of the Sun's diameter, were thus produced upon the plates. The exposures were so made that the line joining the cusps passed approximately through the centre of the plates and the inclinations of the two spider-wires to this line were measured. A small correction for the inclination of the Sun's path has been applied. Two or three zero photographs were usually taken each month at Greenwich, the Cape, and Kodaikanal. (ii) Transits. At Greenwich and the Cape, transits of the Sun were taken visually, the times of contact of the first and second limbs of the Sun with the two wires being noted by an eye-and-ear method. The ratio of the time taken by the Sun to pass over the NE - SW wire to the time taken to pass over the SE - NW wire was used in order to find the angle made by the Sun's path with the bisectors of the wires. From this, again incorporating a correction to allow for the inclination of the Sun's path, the orientation of the wires with respect to the N - S line could be inferred. Transits were usually taken at Greenwich and the Cape on four or more days during each month. (iii) Supplementary Zero Photographs. At Greenwich supplementary partial images of the Sun were occasionally recorded on otherwise normal photographs, a second exposure being made after clamping the instrument firmly for 130 seconds. The small portion of the Sun's limb visible at the western edge of the plate could be used, together with the main image which it does not intersect, to deduce the orientation of the wires in a way similar to that used for the zero photographs. Six to ten supplementary zero photographs were taken at Greenwich each month. The values for the zero of position-angles deduced from them were given half weight in the adoption of zero-corrections to be used in the reduction of photographs. The following table gives the zero-corrections determined by the various methods at Greenwich and the Cape during 1955, together with the adopted values.
Greenwich
(i)
(ii)
1955
о
/
о
/
January February March April
-0 +0 +0 +0 •Ю +0 +0 -0 +0 ••0 +0 +0 +0
02 03 06 04 06 08 07 04 14 10 11 14 08
-0 -0 0 +0 0 +0 •Ю +0 +0 +0 +0 ••О +0
02 03 00 02 00 06 04 06 18 15 11 06 10
May
June July August 1 - 15 Autfust 16 - 31 September October November December
Adopted Value
(iii)
о
-0 +0 +0 •Ю +0 +0 +0 •Ю +0 +0 +0 +0 +0
/
01 02 04 08 02 04 02 01 15 11 08 11 08
О
1
0 0 0 +0 +0 +0
00 00 00 03 03 03
+0 +0 +0 +0 +0
15 15 12 12 09
•ю оз •ю оз
INTRODUCTION то GREENWICH PHOTO.HELIOGRAPHIC RESULTS, IQSS.
Cape
(i)
(il)
О
о
1955 January February March April
•Ю +0 +0 +0
31 28 32 29
June July August September October November December
•Ю +0 •Ю +0 +0 +0 +0
36 31 28 28 27 30 28
May
1
•ю 36
/
+0 +0 +0 +0 +0 +0
35 32 32 32 34 30
+0 +0 +0 +0 •Ю
32 32 32 34 26
•ю зо
Adopted Value О
1
+0 33
•ю зз
+0 33
•ю зз -ю зз •ю зз
+0 30 +0 30 +0 30
•ю зо
+0 30 +0 30
In the case of the few Kodaikanal photographs individual values were adopted, as indicated by the appropriate zero photographs. The measures of the photographs were made with a large position-micrometer that can be used for photographs of the Sun up to 12 inches in diameter. In this micrometer the photograph is held with its film-side uppermost on three pillars fixed on a circular plate, which can be turned through a small angle about a pivot in its circumference by means of a screw and antagonistic spring acting at the opposite extremity of the diameter. The pivot of this plate is mounted on the circumference of another circular plate which can be turned by a similar screwaction about a pivot in its circumference. This pivot, 90° distant from that of the upper plate, is mounted on a third circular plate, with a position-circle graduated in divisions of 30 minutes of arc, which may be rotated about its centre. By this means small movements in two directions at right angles to each other can be readily given and the photograph can be accurately centred with respect to the centre of rotation of the position-circle. When this has been done, a Ramsden eyepiece, having at its anterior focus a glass diaphragm ruled with cross-lines into squares with sides of one hundredth of an inch (for measurement of areas), is moved along a slide adjusted so that the centre of the eyepiece moves diametrically across the photograph, the diaphragm being nearly in contact with the photographic film, so that parallax is negligible. The distance of a spot or facula from the centre of the disk is read from a scale and vernier to l/250th of an inch, corresponding to 0.001 of the Sun's radius for images 8 inches in diameter. The posit ion-angle is read from the large position-circle which rotates with the photographic plate. The photograph is illuminated by diffused light reflected from white paper placed at an angle of 45° below the photograph. All photographs were measured independently by two measurers. In the case of large or complex groups of spots, the chief components were measured individually; so also in the case of groups near to the east or west limbs of the Sun where the effects of foreshortening are appreciable. In other cases the position of the centre of a group was estimated by the measurer at the micrometer. In this respect a difference has been made from the practice during years prior to 1916 when, in the Daily Results (§1.), components of groups were given separately, and in the Ledgers (§3.) combination into groups was made. When required, corrections have been applied to the measured distances and position-angles to allow for differential refraction. The details of this correction
L VI
INTRODUCTION то GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. were given in the I n t r o d u c t i o n for 1909. It is necessary to apply t h i s c o r r e c t i o n to about twenty per cent of the photographs taken at Greenwich in the months October to March. §1.
P o s i t i o n s and A r e a s of S u n s p o t s
and F a c u l a e for
e a c h Day in the Y e a r 1955.
In t h i s section the measured p o s i t i o n s and areas of sunspots and faculae are given for each day. The positions of sunspots are referred f i r s t l y to a system of apparent polar co-ordinates on the Sun's d i s k and secondly to a system of heliographic co-ordinates. The p o s i t i o n s of faculae are g i v e n only in apparent polar co-ordinates. The calculations of heliographic longitude and l a t i t u d e are made from formulae given by W. de la Rue, B. Stewart and B. Loewy, P h i l . T r a n s . , 1869. The system of heliographic co-ordinates may be defined as follows. The i n c l i n a t i o n of the Sun's axis to the ecliptic is assumed to be 82°45', the longitude of the ascending node of the S u n ' s e q u a t o r on the e c l i p t i c for 1955.0 to be 75°07'. 9, and the p e r i o d of the Sun's sidereal rotation to be 25.38 days. The m e r i d i a n which passed through the ascending node on 1854 January 1, Greenwich mean noon, is taken as the zero meridian and longitudes increase from east to west. The mean synodic rotation-period is 27.2753 d a y s ; s y n o d i c r o t a t i o n - p e r i o d s are counted from 1853 November 9, in continuation of Carrington's series. Let r be the measured distance of a spot from the centre of the Sun's apparent disk and y the position-angle of the spot from the Sun's axis, R the measured radius of the Sun on the photograph, S the tabular semi-diameter of the Sun in arc, and p, p' the angular distances of a spot from the centre of the apparent d i s k , as viewed from the Sun's centre and from the Earth respectively. p - the heliocentric angle - is obtained from the following e q u a t i o n s : p' = -| S and sin
(p + p' ) = I
If Bo and Ф are the heliographic latitudes and L0 and X the heliographic longitudes of the Earth and the spot respectively,
sin ф = cos p sin Bo + sin p cos Bo cos y sin (bo - X) = sin y sin p sec Ф у is found from the position-angle measured eastwards from the north point of the Sun's disk by subtracting P, the position-angle of the north end of the Sun's axis also measured eastwards from the north point. The three quantities P, Bo and Lo for the time of the exposure of each photograph are derived from the Ephemeris for Physical Observations of the Sun, given on p. 340 of the Nautical Almanac for 1955. §2.
General Catalogue of Groups of Sunspots for 1955.
This catalogue first contains particulars of every group of sunspots which Lasted for two or more days during 1955. The group numbers are in continuation of those given in 1954 and previous years; the Mount Wilson group numbers are also given. The table includes an indication of those groups which may be considered to be members of "recurrent series" of groups, as contained in Ledger I below (§3.). Spot groups seen on one day only are given in a separate table, where they receive a distinctive numeration.
С vu INTRODUCTION то GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. "Revival" groups of apots have been tabulated in series in a table the General Catalogue. §3.
following
Ledgers of the Areas and H e l i o g r a p h i e P o s i t i o n s of Groups of Sunspots for 1955.
The groups of w h i c h d e t a i l s are given in these ledgers have been a b s t r a c t e d from a general ledger of all spot groups seen throughout the year. Apart from the groups, there are printed in a similar manner d e t a i l s of i n d i v i d u a l components of the principal groups. This has been done in all cases where it appeared probable that an i n d i v i d u a l component l a s t e d to the second or t h i r d r o t a t i o n a f t e r its f i r s t appearance. Ledger I. - R e c u r r e n t Groups. The groups contained in this ledger were selected upon the f o l l o w i n g plan, reference b e i n g made to the General Catalogue:- If any spot when f i r s t seen was 60° or more to the east of the central m e r i d i a n , the catalogue and, if necessary, the Daily Results also (§1.), were searched some f i f t e e n to sixteen days e a r l i e r to ascertain whether a spot group of s i m i l a r h e l i o g r a p h i c longitude and latitude was then near the west limb o-f the Sun. Similarly, if any spot group when last seen was 60° or more to the west of the central m e r i d i a n , a search was made f i f t e e n to sixteen days later. When there appeared to be a case of probable continuity between groups in consecutive rotations of the Sun, the character of the groups, t h e i r areas and t h e i r longitude and l a t i t u d e have been c a r e f u l l y compared before a c c e p t i n g them as a recurrent group. Ledger II. - Non-Recurrent Groups. This ledger contains those groups lasting for six days or longer w h i c h are not members of recurrent series. §4.
Total Areas, Mean Areas and Mean H e l i o g r a p h i c L a t i t u d e s of Sunspots and Faculae in the Year 1955.
This section contains total areas of sunspots and faculae for each day in the year, together w i t h mean areas and mean h e l i o g r a p h i c l a t i t u d e s of sunspots and faculas for each Rotation of the Sun during 1955. Similar annual mean values are also given. §5. O b s e r v a t i o n s of Solar F i l a m e n t s and S o l a r F l a r e s made w i t h the S p e c t r o h e l i o s c o p e s in the Year 1955. This s e c t i o n c o n t a i n s (l) measures of l i n e - o f - s i g h t v e l o c i t i e s of dark Ha. filaments seen on the Sun's disk near sunspots and (2) observations of solar flares in Hen light. The observations were made p r i n c i p a l l y w i t h a spectrohelioscope lent by the Mount Wilson Observatory in the autumn of 1929 and set up at Greenwich in the south a t t i c of the Main B u i l d i n g and, since 1950 February, at Herstmonceux in a spectrohelioscope room forming the ground floor of the dome housing the photoheliograph. The instrument is of a type described by G. E. Hale in the A s t r o p h y s i c a l J o u r n a l , 70, 265, 1929. The spectrum is formed by a Rowland g r a t i n g ruled w i t h 14,438 lines to the inch. The f i r s t order spectrum around Ясс is normally used, the scale being 1 mm. - 4.35 A. The w i d t h of the second s l i t is usually 0.1 mm. The diameter of the monochromatic image of the Sun's disk at the second s l i t is about 50 mm., of w h i c h a p o r t i o n 28 mm. x 6 mm. is rendered v i s i b l e by the r o t a t i o n rectangular prisms. The e y e p i e c e used g i v e s an o v e r a l l m a g n i f i c a t i o n of x40, approximately. A second spectrohelioscope of similar design, presented in 1949 by Mr. A. M. Newbegin, is also available when required so that simultaneous observations can be made by two observers. The observations during 1955 were made by H. Barton, P. S. Laurie and N. Rhodes.
Blank page retained for pagination
ROYAL GREENWICH OBSERVATORY
Positions and Areas of Sunspots and Faculœ For each day in the year
G R E E N W I C H PHOTO-HELIOGRAPHIC RESULTS, 1955
POSITIONS AND AREAS OP SUNSPOTS AND FACULAE FOR EACH DAT IN THE YEAR1955. Col. 1. (1) Time when photograph was taken expressed in days and decimals of a day reckoning from midnight at commencement of year. (2) Place of observation - Greenwich (Q), Cape of Good Hope (C), Kodaikanal (K), Mount Wilson (Mt. W), Freiburg (F). (3) Date of photograph.
Col. 2. Number of spot group in order of appearance and in continuation of the group-numbers ' given in previous years. Groups seen on one day only are distinguished by the number of the rotation during which they were observed and by a letter given in the order of their appearance. When there is no number in the second column it is to be understood that there is a facula unaccompanied by a spot.
Col. 3.
Distance of spot group or faculae from Sun's centre in terms of the Sun's radius.
Col. 4. Position angle of spot group or faculae measured from the north pole of the Sun's axis in the direction H. , B., S., V., H.
Col. 5.
Heliographie longitude of the spot group derived from the measures.
Col. 6.
Heliographie latitude of the spot group similarly derived.
Col. 7. Area of umbrae corrected for foreshortening visible hemisphere.
Col. 8.
and expressed in millionths of the Sun's
Area of whole spots composing the group similarly expressed.
Col. 9. Area of each group of faculae similarly expressed. The positions of faculae relative to the spots with which they are associated are indicated by the letters n, s, p, f, c, denoting respectively, north, south, preceding, following, concentric.
In line with the date of each day is given in brackets for the time of photograph, the position angle of the Sun's axis from the north point, the heliographic longitude and latitude of the centre of the disk and the total areas of spots and faculae for the day.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С3
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR MEASURES
U. T.
1955 0.285
AREA
POSITION
MEASURES
Group No.
17157
Dlst.
.602
Pos
Angle
Long.
о
о
234.0
251.5
Lat.
Umbrae J*10-1-6 Facul« Spots
о
-23.3
1.286
( +2. 2) 17157
С
. 729 .791 . 924
Jan.2
240. 7 140.5 127. 7 (+1.7)
(219.6) (- 3.1)
250. 0
-23. 1
( 206. 4) ( - 3. 2)
No.
64
398
(64)
(398)
(0)
56
307
( 56)
( 307)
87 с 109 134 ( 330)
17157
С
. 863 .887
8.491 G
Jan.3 3.282 С
17157 17158
.952 .873
Jan.4 4.282 С
17157 17159 17158
. 983 . 400 . 726 .911
Jan.5 5.334 С
17159
1355a
17160 17158
. 404 . 462 . 507 . 577
Jan. 6
6.279 С
17159 17160 17158 17161
. 499 .511 .463 . 983
Jan.7 7.286 С
Jan. 8
17160 17158 17161
.552 . 407 .941
244. 6 134.0 (+1.3)
(193.3) ( - 3 . 3 )
(48)
(297)
212 с 129 (341)
246.0 65.8 (+0.8)
251.7 -23.8 122.9 +19.1 ( 180. 1) ( - 3. 4)
31 8 ( 39)
221 43 ( 264)
249 с 126 с ( 375)
207 с
251.3
-23.5
48
297
17160 17158 17161
246. 9 246. 6 -23. 3 160. 5 -26. 1 165. 1 58. 9 126.0 +19.3 115.9 (+0.3) (167.0) ( - 3 . 5 )
0 4 70
21 31 370
(74)
(422)
161.7 -25.8 199. 6 152.6 -31.0 179. 1 166. 7 145.1 -33.0 47. 9 126. 2 +19. 5 (-0.2) (153.1) ( - 3 . 6 )
13 2 0 118 (133)
56 12 3 620 (691)
221. 1 161.9 -25.5 142. 1 -34. 3 182.3 126.0 +19.7 31.1 52. 3 66. 9 +36. 0 (-0.7) (140.7) ( - 3 . 7 )
11 2 112 122
55 11 737 729
203.0 359. 3 49.2 (-1.2)
(247) (1532)
17158 17161
17158 17161
11.279 17158 17161
17158 17161
. 969 . 942 .643 . 776
Jan.13
G
17158 17161
459 с
142. 4 -34. 1 4 22 127. 7 +20. 1 102 589 156 980 456 с 65. 7 +36. 1 (127.4) (-3.8) (262) (1591) (456)
.921 . 856 . 667 .897
Jan. 12
13.503
(459)
. 884 .731 . 724
Jan. 11
12.282
(0)
.907 . 843 .607 .801
Jan. 10
С
.752 . 994 .675 .957
Jan. 14
14. 283 С Jan. 15
230. 5 241.6 221.3 326. 1 43. 5
(-1.7)
9.282
С 172 с 113 (492)
. 884 .801 .660 . 487 . 865
Jan.9
10. 283 С
Po! ?' Angle
о
С
2.283
Dlst.
1955
С
Jan.l
и. т.
POSITION
AREA
Group
17161
. 766 . 720 .936
Long. о
Lat. о
132 93
142. 7 -33. 1 128.2 +19.9 64. 2 +36. 1 (111.5) (- 4.0)
232.5 242. 6 ЗП.9 37.9 ( -2. 1)
129. 8 +20. 2 63.8 +35.9 (101.1) ( - 4 . 1 )
235. 8 303.4 28. 3 ( -2. 6)
128.4 +20.5 63.0 +35.6 (87.9) (- 4.2)
232.9 297. 5 16. 0 115.9 ( -3. 1) 234. 4 293. 7 0.1 10. 2 ( -3. 6)
354.5 290. 5 341.7 55.7 ( -4. 1) 346. 1 332. 3 50.7 ( -4. 5)
Umbras N"018 Facule Spots
6 88 157
(251)
21 466 871
(1358)
338 с
(563) 123 134
128.9 61.8
+20.7 +35.5
(74.8) (- 4.3)
128. 5 61.5
+20. 5 +35.4
(61.6) (- 4.4)
127.0 60.5
+19.8 +35.4
(45.5) ( - 4 . 5 )
59. 4
+35. 2
(35.3) ( - 4 . 6 )
82 108
(190)
71 128
396 817
269 с
(1213) (526)
367 806
(199) (1173)
52 123
292 681
(175)
(973)
79 92
350 616
(171)
(966)
9 108
114 560
(117)
(674)
86
569
(86)
(569)
Group 17168. Jan. 4-14. A stream, led by a regular spot. The following part dies out rapidly after January 7. Group 17-169. Jan. 6 - 7. Two or three small spots. Group J7160. Jan. 6 - 9 . A few tiny spots. Group 17161. Jan. 7 - 19. Return of group 17166. A nearly regular spot with a companion touching the leading edge for most of the disk-passage.
266 119с
(385) 180 212 с 122 / 107 (621)
157 340 / 206 (703)
106 218/ 117 (441)
84 309 с 123 (516)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С4
POSITIONS AND AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE YEAR MEASURES U. T.
Group No.
Dl st.
17161
.822
333.2
. 790 .909
323. 1 47.0
Jan. 16
(-5.0)
16. 483 G
17161
Jan. 17
17.419 G Jan. 18
Angle
о
1955 15.285 С
POS
Á
17161
. 878 324. 1 .882 314.5 .781 38.0 ( -5. 5)
.923 .937
319.0 310.5 (-6.0)
POSITION Long.
0
Lat.
MEASURES
AREA 1е
Umbrae ^° Spots
Facul*
+35.3
95
526
414 с 100
(22.1) ( - 4 . 7 )
(95)
(526) (638) 101
+35. 1
90
( 6. 3) ( - 4. 8)
(90)
(617) (292)
79 ( 79)
386 619 с ( 386) ( 725)
56. 4
Group No.
Dl st.
617
136с
.960 17161
.985
307.5
17162
.965 .962 .953
Jan. 20
20. 342 С Jan. 21
17162
.881 .915
314.6 113.2 57.2 ( -6. 8) 114.3 57.9 ( -7. 3)
22.273 С
17162
.770
116.4 ( -7. 8)
17163 17162
. 892 . 664 .639
247. 4 30. 5 121.0 (-8.2)
Jan.23
+29. 3
31
211
(-9.1)
(262.3) (- 5.5)
(3D
(211)
330. 1 189.4 111.9
270. 9 +29. 5 252. 3 -24. 9 170.8 -22.6 (248.8) (- 5.6)
24 2 28
122 12 169
(54)
(303)
272. 2 +29- 5 232.3 +32.2 168.4 -23.3 (234.3) (- 5.7)
14 3 34 (51)
84 127 с 14 194 442 с (292) (569)
17163 17164 1356b
.856 310.0 270.9 +29.5 .799 114.4 170.2 -22.9 160. 1 -32. 1 . 896 123. 2 ( -10. 4) ( 222. 2) ( - 5. 8)
9 25 0 (34)
31 193 4 (228)
17163 17165 17164
. 939
304. 1
.751
246.4
.654 .838
118.4 126.5
25.410 G
17163 17162 17164
. 659 .337 .974
Jan. 26
26. 504 G
(-9.6)
Jan.24
17163 17162
54.1 +35.6 (340.3) (- 5.0)
254. 7
-23. 7
(329.4) (- 5.1)
254. 4
-23. 8
(315.5) (- 5.2)
253.9
-23.5
( 302. 5) ( - 5. 2)
17163 1356a 17164
. 775 .617 .913
73 (73)
7 (7) 4 (4) 3 (3)
267. 3 +29. 9 253.6 -23.4 ( 290. 1) ( - 5. 3)
1 3 (4)
426 308 с (426) (491)
34
149
202 с
292 с (292)
Jan. 28
187 с 219 с 162 с (568)
143
(34) (494) 26
164 с
28. 400 G
103
(26) (267) 24
(-10.9)
272.2 256.9 171.0
+29.2 -21.4 -22.6
(209.4) (- 5.8)
0 7 28 (35)
6 29 169 (204)
109 / 52 с 118 (279)
169 с
(24) (169)
29.491 G
5 11 175/ (16) (325)
17165 17164 17166
142 14 (156) (122)
.965 .891
303.9 248.6
.487 .961 .911
128.1 66.2 103.3
Jan. 30
122
31 5 (36)
316. 2 2.8 113.0 (-10.0)
150
.862 312.9 . 578 9. 8 270. 3 +29. 2 .487 130.4 253.0 -23.3 ( -8. 6) (276.7) (- 5.4)
Group 17162. Group 17163. the only Group 17164. Group 17165. Group 17166.
(0)
183
30.439 G
23. 287 С
í Faculœ Spots
270. 7
.586
Jan.29 21.328 С Jan. 22
1 lole
347.4
17163
27.425 G
19. 284 С
Umbrœ
106 54.4 +35.1 (354.0) ( - 4 . 9 )
318.1 ( -6. 5)
Lat. о
Jan. 27 18.457 G Jan. 19
Long. о
24. 378 G Jan. 25
55
03
f '
Angle 0
1955
0
124 57.5
и. т.
AREA
POSITION
Jan. 31
(-11.3)
17165 17164 17166
. 964 .354 . 894 .785 .897
249. 5 145.9 63. 1 102.5 126.2 (-11.7)
258.0 170.5 125.0
-21.7 -22.8 +20.9
(195.0) (- 5.9)
257.9 170. 1 124.2
-21.3 -22. 8 +20.7
(182.5) (- 6.0)
8 52 23 (83)
0 62 19
(81)
19 295 129
162 150 с
169 с 52 (443) (533) 11 297 140
166с
126 с 66 73 (448) (43D
Jan. 20 - 26. Return of group 17157. A small spot, not seen on January 25. Jan. 2 3 - 2 9 . A small stream, developing from a tiny spot on January 23. The leader, a regular spot, Is stable component. Jan. 26-Feb.7. A stable regular spot with one or two companions on January 27, 28 and 31. Jan. 29 - 31. A pair of tiny spots. Jan.30-Feb. 6. Return of group 17158. A small spot, with a companion on February 5.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, isss.
С5
P O S I T I O N S AND A R E A S OF SUNSPOTS AND FACULAE FOR EACH DAY IN THE Y E A R
MEASURES U. T.
1955 31.400 G
Group No.
17164 17166
Dlst.
/ 4 Angle
Long.
о
о
. 949 .288 . 797 .931
246. 0 179.8 58. 5 133.1 (-12.1)
Feb.l
32.424 G
17167 17164 17166
.610 .359 . 661 . 924
Feb. 2
33.420 G
17167 17164 17166
POSITION
.760 . 502 . 543
Feb.3
POS
313.3 215.7 49. 9 50. 3 (-12.5)
301.5 233. 7 35. 9 (-12.9)
Lat.
AREA Umbrœ
Wnole
Spots
MEASURES Faculœ
о
-22. 6 +20.5
(169.9) (- 6.0)
184. 3 169. 5 124.0
+19. 3 -22. 8 +20.0
Group NO.
Dlst.
Angle
17168 17169
.950 . 805 . 620 . 867
237.7 303. 5 331. 3 38. 8 (-14.9)
47 7
(54)
289 75
135/ 111 (364) (409)
10 57 11
36 293 54
(156.4) ( - 6 . 1 )
( 78)
( 383)
186. 4 +18. 9 169. 2 -22. 8 123.5 +20.2 (143.3) (- 6.2)
16 57 5 (78)
92 312 34 (438)
38. 456 G
Feb. 8
39. 301 С
146 ( 146) 88 с
17168 17 169
.867 .714 .819 .931
Feb. 9
40.453 G
17168 17169
(88)
.951 .841 . 749 . 876
Feb. 10
34. 470 G
17167 17164 17166 17168
. 898 . 663 .456 . 736 . 950
Feb. 4
35.406 G
17167 17164 17166 17168
. 969 . 796 . 456 .647 .913
Feb. 5
36.410 G
17164 17166 17168 17169
.991 . 903 .539 . 568 . 974
Feb.6
37. 295 С
17164 17168 17169
Feb. 7
Group Group Group Group
295. 3 242. 5 11.9 43. 1 50. 7 (-13.3)
291. 1 246. 1 349. 1 33.9 49.7 (-13.7)
+19.4 -22. 6 +20.1 +27. 2
(129.5) (- 6.3) 189. 3 169. 0 122.4 93.4
+18. 5 -22. 8 +20.2 +26.6
34 58 7 3
314 282 20 10
(102)
(626)
76 53 5 0
465 272 18 3
(117.1) (- 6.3)
(134)
(758)
291.3 168. 7 -22. 6 248. 0 324.9 123.1 +20.0 92. 6 +26. 3 18. 1 36.0 +37.0 49. 5 (-14.1) (103.9) (- 6.4)
45 0 0 28 (73)
250 4 5 145 (404)
57 7 21
214 39 138
(85)
(391)
. 888 232. 4 . 968 248. 6 .545 - 355.6 . 929 44. 9 . 851 40. 0 (-14.4)
17167. 17168. 17169. 17170.
188.7 168. 9 123.8 95. 2
169. 0 95. 0 36. 5
-22. 3 +26. 4 +37. 7
( 92. 3) ( - 6. 4)
Feb. 2 - 5 . Feb. 4 - 1 2 . Feb. 6 - 16. Feb. 12 - 13.
Pos
о
1955
163 169. 8 123.6
и. т.
300.6 318.6 32.0 32.8 (-15.2)
296.3 307.2 20. 8 25. 7 (-15.6)
AREA
POSITION
Long. 0
Lat.
le
Umbras Wh° Faculœ Spots
0
205 82
96. 4
+26. 7
33.7 +37.8 (77.0) (- 6.5)
97. 7 32. 3
120 136
( 33)
( 256)
15 22
118 181
(37)
(299)
18 38
88 265
(56)
(353)
12 33
45 224
(45)
(269)
0 3 24
23 16 124
(27)
(163)
0 23 8
22 103 36
(3D
(161)
+26. 7 +38. 5
(65.9) ( - 6 . 5 )
98. 8 31.0
20 13
+26. 2 +38.1
(50.7) ( - 6 . 6 )
295 с ( 582) 105 86 с 252 с 170 (613)
226 206 с 176 с 152 (760)
246 с
41.391 G 76 (322)
397 с 233 с
215 (845)
.882 .922 .713 . 846
Feb. 11
42.415 G
17168 17170 17169
.751 .982 .938 .707 .956
Feb. 12
274 243 s
43. 396 G
226 p (743)
Feb. 13
132 342s
44. 293 С
257 с 129 (860)
17168 17169
17170 17169 1356с
17169 Feb. 14
.864 . 979 .730 . 683 . 888
. 932 .888 . 800 .784 . 859
235.3 302.3 9.8 19. 1 (-16.0)
336.7 298.7 312.0 355.3 51.9 ( -16. 3) 313.5 308. 9 341.9 4. 6 45. 9 ( -16. 7)
308. 6 320.0 350. 8 332.2 42. 6 (-17.0)
98. 4
+26. 2
29.5
+37.9
(38.3) (-6.7)
98. 8
+26. 4
83.6 29.1
+35.5 +37.9
(24.9) ( - 6 . 7 )
81.7 28.4 8.0
+35.8 +37.3 +36.0
(11.9) ( - 6 . 8 )
27. 6
+37. 8
15
72
(0.1)
(- 6.8)
(15)
(72)
A stream, forming near the west limb and growing rapidly as It passes out of view. A small group with a brief maximum on February 8 and steady advance In longitude. Return of group 17161; third appearance. A group of changing spots. A small spot.
109 218/ 86 / 131 (544)
85 223/ 107 с 1Юпр 249 (764)
97 113с
287 (497)
109 147 183 230с 289 (958)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С б
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR MEASURES
и т.
Group No.
Dlst.
Pos
Angle
A
о
1955
45. 422 G 17169
.934 311.0 . 826 339. 7 .866 321.0 . 786 32. 8
.950 Feb. 15
46.404 G 17169 17171 Feb. 16
47. 381 G 17171 Feb. 17
101.9 (-17.4)
.961 305.5 . 855 328. 5 .928 314.9 .435 80.9 . 884 104. 8 ( -17. 7)
.962 312.3 .918 325.0 .213 65.6 .919 50.0 (-18.0)
POSITION Long. Lat. о
28. 5
AREA le
Umbras Wh° Faculœ Spots
о
+37. 4
( 345. 3) ( - 6. 8)
9 (9)
5 7
( 332. 3) ( - 6. 9)
(12)
31
127 130 184 с
283 120 (3D (844)
23 25 (48)
85 178 212 с
- 1.7
(319.5) (-6.9)
No.
1
6
(1)
( 6)
17172 17173
Feb. 23
54.310 С
116 ( 400)
17172 17173
Feb. 24
17172 17173
Feb.25 56. 296 С
17172 17173
Feb.26 .948
48. 458 G Feb. 18
316.0
(-18.4)
50. 402 G
. 790 . 762 . 947
Feb.20
51.296 С 17172
Feb.21
322. 8 340. 3 49. 6 (-19.0)
.882 311.9 .816 325.0 . 987 68. 7 ( -19. 3)
(305.3) ( - 7 . 0 )
(0)
(0)
(95)
57.356 G
177 75
17172
Feb.22
17172 17173
(279.7) ( - 7 . 0 )
190. 6 +19. 6 ( 267. 9) ( - 7. 1)
(0)
51 (51)
(0)
94 (346)
138 113 320 145 p (320) (396)
Feb. 27
58.375 G
.938 310.6 . 860 324. 8 .925 65.3 ( -19. 6)
190. 7
+19. 6
(253.7) ( - 7 . 1 )
Oroup 17171. Feb. 16 - 17. Group 17172. Feb. 21-Mar. 3. out before reaching the Group 17173. Feb. 23-Mar. 7.
59 ( 59)
196 147 360 443 с ( 360) ( 786)
17172 17173
Feb. 28
59. 375 G 52. 374 С
POSITION
AREA
Pos A
Angle
Long. Lat.
Umbrse Wh° Facul* Spots
.940 314.4 .902 302.5 . 840 61. 1
.958 110.9 .969 121.4 (-19.9)
.712 53.3 .876 111.3 .922 121.5 ( -20. 1)
.872 . 558 .726 .847 .969
313.7 39. 4 113.9 122.8 120.5 ( -20. 5)
. 480 24. 3 .614 117.5 .926 120.7 ( -20. 7)
о
le
о
190.5 +19.6 167. 0 -22. 0
49 26
(241.6) ( - 7 . 1 )
(75)
191.1 +19.5 166.8 -22.0
41 31
(228.2) ( - 7 . 1 )
(72)
190.4 +18.8 166. 7 -22. 1
48 25
154 146 308 345 с 189 161 с 117 (497) (923)
278 175
260/ 172с 196 (453) (628)
121
(212.3) ( - 7 . 2 )
190. 1 166. 2
+18. 8 -22. 3
(202.1) ( - 7 . 2 )
(73)
216 164 147 139 (380) (407)
39 18
205 154
( 57)
( 359)
42 22
223 111
228 ( 228)
95
No spots or faculte
Feb. 19
Dlst.
о
53. 292 С
88 (563)55.522 G
196 88
308.4
и т 1955
+37. 2 - 2. 3
27. 7 306. 9
MEASURES Group
Шт. l
17172 17173
. 779 328. 7 .440 355.6 190.1 +18.7 .441 127.7 166. 0 -22. 3 . 848 122. 0 .900 134.0 . 957 59. 6 (-21.0) (188.1) (- 7.2)
.858 319.7 .512 327.5 . 299 150. 6 .899 55.0 (-21.3)
.928 313.6 .633 310.3 .271 191.5 .867 118.9 .951 59.7 (-21.5)
113
(64)
149 150 143 (334) (555)
153
191.5 +18.6 165.6 -22.1
30 25
(174.7) (- 7.2)
(55)
191.9 +17.9 164.8 -22.5
23 22
220 102 (322)
119 (272)
140
(161.5) ( - 7 . 2 )
(45)
107 116 61 168 (223) (369)
A pair of tiny spots on February 16; a single spot on February 17. Return of group 17167. A pair of spots, which soon develop Into an unstable stream and die limb. Return of group 17164. A regular spot.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 7
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR MEASURES
и. т. 1955 60.383 G
MEASURES
Group
No.
Dlst.
17172 17173
. 963 . 750 . 370 . 914
Po A
t Angle о
Mar. 2
61.381 G
AREA
POSITION
17172 17173
Маг.З
62. 373 G 17173
310. 2 302. 4 224. 5 54. 2 (-21.8)
.832 312.2 ,897 293.2 . 530 238. 8 .832 48.2 (-22.0)
. 929 . 882 . 685
Маг. 4
293. 9 306. 5 245. 1 ( -22. 3)
Long. Lat. о
Umbrae
ole
^ Faculae Spots
о
15 21
74 118
194. 5 164. 3
+17. 1 -22. 1
(135.1) ( - 7 . 2 )
163. 9
( 36)
4 18
(22)
-22. 1
18
(122.0) ( - 7 . 2 )
(18)
( 192) ( 529)
22 101
64. 432 G Mar .6
65. 304 С Mar. 7
17173
17173
17173
66. 377 G Mar .8
17174
67. 381 G Mar .9
17174
68. 361 G Маг. 10
17174
. 951 .818
. 862 . 927
. 934 . 979
293. 2 247.9 ( -22. 5)
238. 0 248. 9 ( -22. 7)
238. 5 248. 7 ( -22. 9)
.861 321.5 . 920 42. 3 ( -23. 1)
.927 314.2 . 906 39. 0 (-23.4)
.972 310.6 . 859 33. 2 ( -23. 6)
Oroup 17174.
163. 6 -22. 1 ( 108. 9) ( - 7. 2)
POS
, Angle
Long. Lat.
о
Маг. 11
о
№Ьгвв
Sot's
Faculœ
о
No spots or faculte
122
327 с
70. 368 G Маг. 12
.930 301.9
71.675 G Mar. 13
.912
72. 383 G Маг. 14
.887
73.533 G
.926 304.0 .893 317.9 . 794 333. 1 .916 42.7 ( -24. 5)
( -23. 9)
202 ( 16. 7) ( - 7. 2)
(0)
226.0 . ( -24. 2)
( 0)
( 202) 218
(359.4) ( - 7 . 2 )
(0)
(0) (218)
119
(123) (568)
84
(84)
368 97 75s£
(540)
Mar. 15
63. 368 G Mar. 5
DISt.
AREA
246 с 182
(148.2) ( - 7 . 2 )
Group No.
1955
101
189.9 +18.3 164. 4 -22. 2
и. т.
POSITION
118
41.3
( -24. 3)
(350.1) ( - 7 . 2 )
(0)
(0) (188) 92 141 108 167
(334.9) ( - 7 . 2 )
(0)
(0) (508)
176
22
(22)
93
(93)
140 с
(316)74.522 G Маг. 16
.941 310.9 . 869 327. 0 (-24.6)
75.371 G Mar. 17
.970 316.4 .877 331.2 ( -24. 8)
76. 387 G Mar. 18
.955 312.9 .900 326.5 (-24.9)
(321.9) ( - 7 . 1 )
(0)
96 165
(0) (261)
140
163. 8
-22. 3
(94.9) ( - 7 . 2 )
17 (17)
75 187 С (75) (327)
156 102
(310.7) ( - 7 . 1 )
(0)
(0) (258)
177
163. 5
-22. 3
(83.4) ( - 7 . 2 )
14 (14)
111.4 +37.1
8
( 69. 3) ( - 7. 2)
(8)
72 149 s (72) (326) 47
125 с
146 121
(297.3) ( - 7 . 1 )
(0)
(0) (267)
236
111.4
+36.3
(56.0) (- 7.2)
109. 8
+36. 6
0 (0) 0
(47) (361) 10
186 с 236
(10) (422) 15
241 с 181
(43.1) ( - 7 . 2 )
(0)
(15) (422)
No spots or faculte
Маг. 19
78. 388 G Маг. 20
. 961
66. 4
79.353 G Маг. 21
.861 318.7 .931 64.1 ( -25. 3)
( -25. 2)
И6
(270.9) ( - 7 . 0 )
(258.2) ( - 7 . 0 )
Маг. 8 - 1 0 . A pair or small spots on March 6 and 9; a single spot on March 10.
(0)
(0)
(0) (156) 120 293
(0) (413)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, IQSS.
С8
POSITIONS AND AREAS OF SUNSPOTS AND FACUL/E FOR EACH DAY IN THE YEAR MEASURES U. T.
Group No.
Dlst.
Pos
Angle о
1955 80. 402 С Mar. 22
.816 .928
59.7 63-0 (-25.4)
POSITION Long. Lat. 0
AREA 1016
Umbra If Spots
Facul«
Group No.
Mar. 23
.951 294.6 . 796 50. 0 .869 117.8 ( -25. 6)
82. 343 G Mar. 24
Mar .25
]
Mar. 26
>
Mar. 27
J
151 172
(0)
90.357 G
(0) (323)
17175 17176
87. 357 G
Mar. 29
88. 352 G
(231.8) (- 6.9)
(218.8) (- 6.9)
(0)
(0)
(0) (434) 99 226 155
91.360 G 1?58я 17176 Apr. 2
No spots or facula?
17177
Арг.З
50.0
157
17175 17176
Mar. 30
( -26. 0)
( 166. 0) ( - 6. 7)
(0)
. 778 328. 3 .964 114.6 ( -26. 1)
182. 7 +35. 5 76. 9 -25. 5 (152.7) ( - 6 . 7 )
0 0 (0)
. 867 299. 5 . 846 320. 3 .893 114.9 . 939 100. 2 ( -26. 1)
93. 302 С
17177
(0) (157)
21 109 с 30 126 с 94.333 (51) (235) С 278
+35. 6 -25. 1
0 17
(139.5) (- 6.6)
(17)
181. 1 76. 3
Apr. 4
24 62
137 с 86 с 102
(86)
17177 17178 17179
Apr. 5
95.356
(603) G
17178 17179
Apr .6 89. 354 G 17176
Mar. 31
.910 313.2 . 900 294. 2 . 794 304. 7 .779 117.4 ( -26. 2)
Group 17175. spot on Group 17176. Group 17177. Group 17178. Group 17179.
.937 296.9 .858 311.2 .978 307.8 .650 122.0 ( -26. 2)
0
183.2
le
Umbrae Wh° Spots
Facul£e
0
+34.8
0
75.7 -25.3
11 (11)
(113.1) ( - 6 . 5 )
16 27 (43)
219 104 198 с (521)
76. 6 -25. 3 (126.3) (- 6.6)
15 (15)
.954 298.2 .865 241.1 . 852 306. 5 .488 132.2 ( -26. 3)
149. 5 +26. 2 76.5 -25.0 (99.9) ( - 6 . 5 )
0 2 ( 2)
7 17 ( 24)
4
13
(4)
(13)
110 128 67 с ( 305)
(0) (480)
17178
17175 17176
Long. Lat.
AREA
120 192 122
92.315 С
.862
86. 349 G Mar. 28
*«• а. о
Apr.l .912 311.8 . 874 57. 5 .926 113.3 ( -25. 5)
81. 356 G
POSITION
1955
0
(244.4) (- 7.0)
и. т.
MEASURES
190 329 113
96. 381
G 82 1 2 6 с (82) (758) Apr. 7
17178 17179
. 904 236. 7 .552 351.6 . 908 168. 1 ( -26. 3)
.763 316.3 . 606 332. 7 . 538 343. 1 ( -26. 3)
. 864 309. 1 .720 315.9 .620 325.5 . 463 16. 5 ( -26. 3)
.936 302.8 .736 312.8 . 465 347. 8 ( -26. 4)
. 844 .546
Mar. 29-Apr. 1. A pair of small spots on March 29 and 30; nothing Is the next day. Mar. 29-Apr. 2. A pair of small spots. Apr. 3 - 5 . A pair of tiny spots on April 3 and 4; a single spot Apr. 4 - 9 . A bl-polar group developing from a few tiny spots on Apr. 5 - 1 1 . A group of small spots with a b r i e f maximum on April
305. 4 325.2 ( -26. 4)
172
92.5
+26.6
(87.3) (- 6.4)
92. 2 84. 1
+26. 4 +24. 6
(74.2) ( - 6 . 4 )
6 5 (11)
97 22 31 (53) (97)
147
( 60. 6) ( - 6. 3)
3 12 7 (22)
U 65 29 (105)
83.5 +25.0 53.1 +20.7 (47.1) ( - 6 . 2 )
28 16 ( 44)
192 77 ( 269)
29 44 (73)
154 1 5 0 с 246 (400) (150)
94.3
+25.9
52.6
+20.0
83. 3
83.0 53.0
+24. 8
+25.3 +20.7
( 33. 6) ( - 6. 2)
seen on March 31 but there Is a single
on April 6. A p r i l 4. 7.
116 (288)
(147)
181 77 с ( 258)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 9
POSITIONS AND AREAS OF SUNSPOTS AND FACUL/E FOR EACH DAY IN THE YEAR MEASURES
и. т. 1955 97. 347 С
Group No.
17178 17179 17180
Dlst.
. 764 . 928 .662 .547 .900
Apr .8 98. 340 G
17178 17180 17179
.922 . 976 .728 . 793 . 879 .916
Apr .9
99.317 С Apr. 10
17179
. 896
Pos
AREA
POSITION
Umbras Wh o l e Faculse Spots
Angle
Long.
о
о
о
83.0 52. 9 51.9
+25.0 +20. 8 -19.6
24 21 2
(20.9) ( - 6 . 1 )
(47)
A
244. f, 300. 2 311.4 243.0 37.9 ( -26. 4) 246.1 298. 8 248.4 302. 2 30. 6 111.7 ( -26. 4) 297. 7 ( -26. 3)
80. 3 53. 6 53.5
Lat.
+26. 4 -19. 8 +20.8
(7.8) (- 6.0) 53.2
MEASURES
+21.5
(354.9) ( - 6 . 0 )
137 109 7
75 206 с
и. т. 1955 106. 322 G
Group No.
Dis t.
0
17181 17182 17183
136 (253) (417)
.937 . 426 .864 .938 .923 .952
Apr. 17
(11)
(79)
143 247 с 61 с 150с 116 116 (833)
12
72
216 с
(12)
(72)
0 0 11
16 3 60
107.311 С Apr. 18
17183
.844 . 899
.761 .812 .948 .954
108.325 G
(216) Apr. 19
100. 303 С Apr. 11
17179
.952
295.5 ( -26. 3)
49. 5
+22. 0
(341.8) ( - 5 . 9 )
0
14
(0)
(14)
102. 620 G Apr. 13
.943
(228)
( -26. 2)
.880 .891 . 940
103. 330 G Apr. 14
317.2 54.0 108. 6 (-26.2)
232
(311.3) ( - 5 . 7 )
.848 . 890 .913 . 946
109. 361 G Apr. 20
57.1 (0)
(0)
110.321 G
(232) 116 215
1359a 17182
17181 17182
.925 .311 .987 . 784
Apr. 15
105.363 G Apr. 16
17181 17182
Group Group Group Group
В.
.302 .945
17180. 17181. 17182. 17183.
314.7 159.3 115.4 46. 2 ( -26. 1) 195.0 113.0 (-26.1)
121.1 58. 7 (-25.9)
126.0 56.1 59.9 48.6 (-25.9)
La t.
о
о
282.3 203.4 192. 8
-21.4 -24.0 -28. 1
Umbra ^ole Faculœ Spots
121
(262.4) (- 5.4)
193.8
-28.9
(249.3) ( - 5 . 4 )
(235.9) ( - 5 . 3 )
1
10
2
18
0
13 5
(3)
(41)
i 385 с 174 209 (889)
0
7
(0)
(7)
237 с 185 (422)
(0)
78 162 140 177 (557)
(0)
(0)
85 147 142 131 (505)
3 2
11 15
(0)
. 939 .697 .381 . 874 .892 .897
Apr .21
245.4 57. 6 43.8 120. 2 (-25.8) 246. 1 241.4 162.3 36. 9 51.9 121.1 ( -25. 7)
( 222. 2) ( - 5. 2)
114 251.2 202. 2
-23.3 -26. 2
(209.6) (- 5.1)
(5)
(26)
138 129 157 (538)
71
(301.9) ( - 5 . 7 )
(0)
(0)
(402)
111.322 G 104. 504 G
315.0 228. 4 114.7 118.0 166.6 65.0 ( -26. 0)
Long.
AREA
228 с
No spots or faculae
Apr. 12
03
f '
Angle
POSITION
198
279. 6 204. 4
-22. 4 -25. 9
7 0
30 21
(286.4) (- 5.6)
(7)
279. 8 -22. 3 203.7 -23.5 (275.0) ( - 5 . 5 )
6 0 (6)
Apr. 8 - 9. Apr. 15 - 17. Apr. 16 - 21. Apr. 17 - 24.
17183
(51)
247 с 143 (588)
Apr. 22
27 14 (41)
526/ (526)
112.321 G Apr. 23
Tiny spots on A p r i l 8; a single spot on April 9. A pair of tiny spots. One or two tiny spots, not seen on April 18-20. Intermittent. A tew tiny spots.
. 949 . 870 . 827 .381 . 800 .807
. 920
244. 4 307. 1 244. 4 171.4 32. 6 126.4 (-25.6)
135 160 123 192. 6
-27. 1
( 196. 3) ( - 5. 0)
3
(3)
16 (16)
120
246. 1
(-25.5)
188 133 (739)
(183.1) ( - 4 . 9 )
(0)
(0)
(120)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 10
POSITIONS AND AREAS OF SUNSPOTS AND FACUL/E FOR EACH DAT IN THE YEAR MEASURES U.T.
Group No.
Dis t.
1955
113.316 G Apr .24
17183
. 509
Pos
/ Angle
Long.
о
о
о
222. 5
192. 5
-26. 4
( -25. 3) .964
114.306 G Apr.25
AREA
POSITION
Lat.
(170.0) (- 4.8)
nole
Umbrae *j Spots
Faculaj
и. т.
Group No.
Dlst.
1955
1
10
(1)
(10)
61.0
(-25.2)
MEASURES
(0)
0
121.329 G May 2
17184 17185
122. 297 G
17184 17185 17186
.620 .485
. 820 . 804 .894
Apr. 26
116.320 С 17184
. 894 . 886 .784 .964 .811 .917
Apr. 27
239. 3 306. 9 56.0 (-25.1)
302. 3 241. 3 320.9 51.9 52.7 66.7 ( -24. 9)
(156.9) ( - 4 . 7 )
(0)
(0)
(229)
( 143. 7) ( - 4. 6)
+34. 8
63. 0
(130.3) ( - 4 . 5 )
(0)
17
(17)
(0)
251 129 141 (521)
220 365 155 78 207 с 206 141 (78) (1294)
123.315 G 17187 17184 17185 17186
.621 .385 . 976
17184 17185
.942 .919 . 960 . 767 . 820
Apr. 28
241.4 48.5 69. 8 46. 3 62. 5 ( -24. 8)
60. 1 46.2
+35. 1 +17.9
(117.2) ( - 4 . 4 )
30 16
(46)
152 74
(226)
178 172 с 184 с 163 130 (827)
17184 17185
.914 . 899 . 844 . 883 .952
Apr .29
316.2 299. 6 43. 2 66. 8 57.8 ( -24. 6)
+34. 9 +18. 1
59. 3 45. 5
( 103- 9) ( - 4. 3)
42 12
270 74
( 54)
( 344)
151 133 186 с 224 / 254 ( 948)
17184 17185
.912 . 750 .758 .901
Apr .30
120.375 G May 1
17184 17185
Group Group Group Group
. 673 .613
17184. 1718Б. 17186. 17187.
309.6 34. 2 61.9 51.3 ( -24. 5) 22. 7 54.1 ( -24. 3)
+34. 6 +17.9
59. 6 45.8
34 15
167 72
(90.3) (- 4.2)
(49)
(239)
58. 4 +34. 3 45. 5 +17. 5 ( 76. 7) ( - 4. 1)
29 14 (43)
146 45 (191)
Apr. Z7-May 7. Apr. 28-May 6. May 3-12. May 4 - 5.
A A A A
143 94 с 175/ 90 (502)
305.0 230. 3 323.1 317.5 126.5 ( -23. 5)
17184 17186
. 935 . 883 . 824 .856 .730
300. 5 288. 5 326. 3 313.1 133.5 ( -23. 3)
17184 1360a 17186
.946 .881 .919 .870 . 635
291.1 319.5 309.1 303.1 142. 2 (-23.1)
17186
.932 . 886 . 525
311.4 293. 7 164. 3 (-22.9)
May 5
May 6
May 7
127. 387 С
(0)
Мау8
234.1 311.3 222. 3 334. 9 343. 1 124.1 ( -23. 7)
.879 . 807 .753 .499 .851
126. 322 G 119. 349 G
349.7 15.3 122. 9 ( -23. 9)
17187 17184 17185 17186
125. 568 G
118.315 G
.943 .786 . 694 . 672 . 388 .917
May 4
124. 323 G
117.313 С
6.9 41.0 ( -24. 1)
Long.
Lat.
о
о
59. 0 44.7
+33. 8 +17.6
(64.1) (- 4.0)
AREA ole
Umbrae ™) Faculae Spots
23 13 (36)
125 41 (166)
23 12 31 (66)
122 39 194 (355)
(0)
229
May 3
115.310 С
POS ' Angle
POSITION
bl-polar group, of which the leader alone remains by May 3. small spot, which divides Into two before dying out. string of small unstable spots. pair of tiny spots.
58. 9 45.2 334.1
+33. 6 +17.8 -32.9
(51.3) (- 3.9)
452 с (452)
201 132
72.0 57. 9 44. 7
-33.9 +33. 8 +17. 9
333.7
-32.6
( 37. 9) ( - 3. 8)
72.4 57. 4 45. 2
-33.4 +33. 8 +18. 1
330.4 -32.5 (24.5) (- 3.7)
56. 3 +33. 3 329. 1 -32. 9 (8.1) (- 3.6)
56. 8 +33. 6 52. 3 +26. 3 330. 5 -33. 1 ( 358. 1) ( - 3. 5)
8 13 6 38 (65)
24 70 37 242 (373)
4 7 3 51 (65)
12 30 16 275 (333)
352с (665)
17 210 (227)
152 140 130 258 с 122 с (802)
11 5 98 (114)
144 148 197 с 114s 65 / (668)
5 32 (37)
3 0 24 (27)
429 с (762)
141 76 с 96 с
301 307
334.2 -33.6 (344.0) ( - 3 . 4 )
2 (2)
16 (16)
(608)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 11
POSITIONS AND AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE Y E A R
MEASURES
и. т.
Group No.
Dlst.
POS 4
Angle о
1955 128. 330 С May 9
. 943
AREA
Long. Lat.
Umbras ^°^ Faculœ Spots
0
e
0
293. 3 ( -22. 7)
MEASURES
POSITION
246 (331.6) (- 3.3)
(0)
( 0)
и. т. 1955 136.467 G
( 246)
Group No.
.981
125.0 (-22.4)
126 (318.5) ( - 3 . 2 )
(0)
(0)
137.303 G
(126)
1360b 17189 17188
17189 17188 17190
May 18
130. 398 G May 11
17186
131.303 G May 12
17186
. 629
216. 8
330.8 -32.9
3
(304.2) ( - 3 . 1 )
(3)
222. 2
327.1 -34.0
1
(-21.9)
(292.2) (- 3.0)
(1)
( -22. 2)
138.316 G
20
17189 17188 17190
( 2 0 ) (0) May 19
. 708
. 796 228. 8 .966 119.2 (-21.7)
132.411 G May 13
( 277. 6) ( - 2. 9)
(0)
.881
.925 . 935
( 1 2 ) (0)
440 207 (0) (647)
May 14
233.7
120.9 63. 6 (-21.4)
( 265. 7) ( - 2. 8)
(0)
139. 326 G
(0)
455 213 190 (858)
17189 17188 17190
. 936 234. 4 . 889 293. 4 .858 126.6 .916 116.5 .930 61.7 (-21.2)
May 15
(252.9) (- 2.7)
(0)
17189 17188 17190 17191
May 21
(0)
447 86 128 141 139 (941)
17188 17190 17191 May 22
142.307 G 135.330 G May 16
17188
.969 234.8 . 933 62. 5 .889 119.3 ( -20. 9)
173.8
+24.5
(239.0) ( - 2 . 5 )
Long. Lat.
Umbras ^ Faculœ Spots
0
nole
0
. 567 353. 3 . 427 8. 6 .875 58.5 ( -20. 5)
228.4 +31.7 220. 1 +22. 5 168.2 +25.9 (224.0) (- 2.4)
(38)
(209) (133)
.412 347.1 . 766 53. 5 .993 64.9 ( -20. 3)
218.5 +21.3 170.1 +25.3 131.7 +24.6 (212.9) ( - 2 . 3 )
0 32 20 (52)
16 184 95 с 73 105 p (273) (200)
.864 237.9 . 796 252. 4 .496 322.0 .630 43.2 . 959 63. 2 (-20.0)
1 1 36
3 20 186
133 с
95 108
218.5 +20.9 171.1 +25.3 129.0 +24.9 ( 199. 5) ( - 2. 2)
8 26 18 (52)
46 171 120 313 с (337) (516)
255.0 308.9 25. 5 60. 7 (-19.7)
218.2 +21.7 172. 5 +24. 5 129.2 +24.2 ( 186. 1) ( - 2. 1)
6 55 23 (84)
25 300 134 (459)
. 758 304. 2 .444 2.2 .777 55.6 .938 117.6 (-19.4)
216.0 +23.6 171.9 +24.3 128. 4 +24. 5 105.0 -26.5 (173.0) ( - 2 . 0 )
0 108 40 3 (151)
17
79
(17)
(79)
17188 17190
295 212 с 167 (674)
.877 .637 . 498 . 878
May 20
141.3Ю G 134.277 G
AREA
12
140. 319 G
133.311 G
POS
A Angle о
May 17
129.315 G May 10
Dis t.
POSITION
May 23
.953 . 882 .485 . 661 .843
306.0 296. 9 335.1 46. 9 120.3 ( -19. 1)
. 956 293. 2 .795 312.4 .589 317.5 .537 33.4 .974 64.4 (-18.8)
123
494 с (617)
7 169 с 492 181 355 с 20 1 1 7 с (700) (641)
148 163 172. 8 +24. 3 127.8 +25.2 105.9 -26.2 (159.9) (- 1.8)
92 30 0 ( 122)
618 178 8 115с ( 804) ( 426)
192 146 172. 4 127.8
+24. 1 +24.9
135 31
709 175
( 166)
( 884)
258
( 146. 7) ( - 1. 7)
Group 17188. May 16 - 27. A pair oT spots until May 19. On the n e x t day Intermediate spots appear to Torn a stream, of which the leading portion soon coalesces Into a regular spot, while the following part becomes composite and soon dies out. Group 17189. May 17 - 21. A few small unstable spots. Group 17190. May 18-30. A variable stream, of which the leader Is the only stable component. Group 17191. May 2 1 - 2 2 . A pair of tiny spots on May 21; a single spot on May 22.
( 596)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 12
POSITIONS AND AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE YEAR MEASURES
и. т.
Group No.
Dlst.
Angle.
17188 17190 17192
.885 .842 .731 . 454 .907
310.2 233.7 305.7 9. 2 55.6
о
1955 143. 367 G
toy 24
(-18.4)
144. 302 G
17188 17190 17193 17192
.934 . 902 . 853 . 454 . 636 .834 . 950 .966
May 25
145.302 G
POS A
17188 17190 17193 17192
. 938 .531 .436 . 729 . 919 .935
May 26
307.7 235. 5 300. 4 346. 5 93. 1 51.5 68. 2 52.1 ( -18. 1)
297. 2 327.6 94.0 44. 9 69. 0 50.5 (-17.8)
POSITION Long. 0
Lat.
MEASURES
AREA
1е
Umbrœ ^° Spots
Faculœ
0
134 185 173.0 +24.0 128. 1 +24. 9 73. 2 +29. 9 (132.7) (- 1.6)
174. 1 127.0 81.0 71. 5
88 21 0 ( 109)
519 140 6 ( 665)
373s/ ( 692)
164 189 451 с
+24. 6 +24.6 - 3.1 +30. 2
75
416
24 0 4
154 5 21
(120.3) (- 1.5)
(103)
173. 7 125. 3 81.4 70. 9
+24. 8 +25. 1 - 3.0 +29. 8
( 107. 1) ( - 1. 4)
98 24 1 29
(152)
(779)
1955 149. 302 G
150. 307 G
465 с
June 1
192 / 168 153 (978)
152. 307 G
June 2 146. 396 С
17188 17190 17192
. 965 . 986 .664 .621 . 897
May 27
147. 324 С
17190 17192 17194
. 766 .559 . 644 . 854
May 28
148.354 G
May 29
17190 17192 17194 1360с
.859 . 524 . 497 . 672
324. 6 294. 2 311.4 32.3 48. 2 (-17.4)
305. 1 18.6 46. 7 46. 7 (-17.1)
300.7 358. 1 29. 0 138. 7 (-16.7)
171. 3 125.8 70. 0
+23. 6 +25.0 +30. 5
(92.6) (- 1.2)
0 15 54
39 81 238
( 69)
( 358)
+25.3 +30. 8 +25. 1
17 78 6
90 429 28
(80.3) (- 1.1)
(101)
124.0 68. 4 49. 2
121.4 +25.3 67. 9 +30. 5 51. 4 +24. 7 35.6 -31.1 (66.7) (- 1.0)
Group 17192. May 24-June 4. component Is the central Group 17193. May 26 - 26. Group 17194. May 28-June 2. Group 17195. May 31-June 2. Group 17196. June 4 - 14.
7 49 4 1 (61)
(547)
49 342 19 9 (419)
f ' Angle
. 927 .556 .445
297. 8 340.6 7.8 (-16.4)
0
17190 17192 17194
POSITION Long. 0
118.8 66. 4 50. 3
Lat.
AREA №Ьгв
Soîs
(54.1) (- 0.9)
0
12
47 3 ( 50)
246 24 ( 282)
136 15 15 (166)
. 974 .643 .474 .987
296. 9 324.4 338.5 125.4 (-16.0)
51.8 +25.3 322.0 -35.0 (40.8) (- 0.8)
30 0 0 (30)
17192 17194 17195
.867 .733 .553 .952
303.0 313.0 321.4 128.4 (-15.6)
65. 4 +29. 4 49- 9 +24. 9 319.8 -36.4 ( 27. 6) ( - 0. 6)
11 3 0 (14)
66 23 17 (106)
17192 17194 17195
.851 . 864 . 670 .874
294.7 307. 1 309. 9 131.3 (-15.3)
9 3 0 (12)
56 25 5 (86)
.918 .769 . 922 .846 .947
295.0 305.8 304. 2 134.9 56.9 (-15.0)
66. 5
67.8
FaCUlœ
О
+25.1 +30. 6 +25. 1
17192 17194 17195
May 31
151. 304 G
03
Dlst.
May 30
328 с 137 122 (596) (1391)
489 157 6 127
и т
Group No.
+30. 7
+31.1
48.8 +25.0 320.9 -35.4 (14.4) ( - 0 . 5 )
573 с ( 573)
273
199 с (472)
126 118с 165 с (409)
207 352 с 230 с (789)
75 348 с
180 ( 603)
139 с
174 (313)
153.095 К 17192
June 3
154. 366 С June 4
17192 17196
.986 .878
301.5 52.9 (-14.5)
66. 4
+30. 9
(3.9) ( - 0 . 4 )
65. 3 291.9
+30. 9 +31.7
(347.1) ( - 0 . 3 )
12
(12)
0 23 (23)
130 172 45 357 с 333 134 (45) (1126)
12 103 (115)
353/ 171 с (524)
196 ( 196)
207 165 204 с ( 576)
477 с
155.349 G 17196 (477)
June 5
. 965 .926 .779
297. 6 311.0 47.3 (-14.1)
292.0 +31.7 (334.1) ( - 0 . 2 )
35 ( 35)
A stream, developing from a small spot f i r s t seen on May 24. The largest and most stable spot. The whole group dies out as It approaches the limb. A tiny spot. One or two tiny spots. One or two tiny spots. A long stream of changing spots, not seen on June 12. On June 13 and 14 a few tiny spots reappear.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 13
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR MEASURES
U.T.
Group No.
"St.
1955 156. 303
G
17196
June 6
157.330 С June 7
17196
A Angle
Long.
о
о
о
291. 7
+32. 3
POS
.902 312.5 . 682 38. 2 . 944 59. 9 (-13.7)
. 565
22. 8 (-13.3)
AREA
POSITION
Lat.
Umbrœ ^ ole Spots
MEASURES
42
(42)
293.1 +31.3
26
( 307. 9) ( + 0. 1)
(26)
261
(261)
96 (241)
17196
159.607 G June 9
17196
.518
1.0
292.8 +31.3
20
(-12.9)
( 293. 4) ( + 0. 2)
(20)
(101)
334.2
294.6 +31.1
13
72
(-12.4)
(277.8) ( + 0 . 3 )
(13)
17196 17197 17198 17200 17201
June 13
152
(152)
163. 302 G
101
17196 17198 17201 17200
(0) June 14
160. 315 G
17196 17197 17198
June 10
.572
.636 324.3 . 967 42. 2 .989 114.2 (-12.1)
294.0 +31.3 199. 7 +45. 9 188. 2 -23. 8 ( 268. 4) ( + 0. 4)
12 0 59 (71)
(72)
(0)
165.515 G
54 17
358 с 430 245 с (501) (603)
17197 17198 17201 17200
June 15 161.321 G
17196 17199 17197 17198 17200 17201
June 11
162.482 G
June 12
17199 17197 17198 17200 17201
.881 .713 .515 .943 .941 .979 . 984
230.4 316.0 147.9 42.7 115.7 111.5 67. 7 (-11.7)
. 859 307. 1 .437 174.2 . 867 37. 6 .840 119.0 .918 113.8 .915 64.5 (-11.2)
7 290.4 +31.2 237. 6 -25. 1 8 0 192. 3 +44. 1 67 187.4 -23.8 178.1 -20.9 4 176.3 +22.0 20 (255.1) (+ 0.6) (106)
64 35 13
284 128 с
4 0 67
34 16 (121)
166. 300 G
287 с
418
? 475с 105 ' 149 375 с (784) (1549)
289 236.9 -25.0 192. 8 +43. 7 186. 7 -23. 5 175.5 -21.4 175.7 +23.5 (239.7) ( + 0 . 7 )
31 11 405
Dlst.
Pos
11016
Long.
о
о
о
282. 3 191. 6 186. 6 175.1 177.8
+34. 3 +46. 2 -23. 9 -21.5 +23.8
42 2
( 228. 9) ( + 0. 8)
(123)
.938 229.9 .868 310.0 . 829 30. 5 .744 123.9 .841 116.5 .817 60.9 . 940 60. 3 (-10.9)
Lat.
Umbrœ И Spots
Angle
0 0 79
9 17 467
Faculas
170 244 p 215/
j5 266 16
204 с
16 452 30 310
174 p
156 с 216 (775) (1205)
(0) 164. 344 С
158.427 G June 8
Group No.
1955
145 (321.5) ( 0.0)
и. т.
Faculffi
AREA
POSITION
17198 17200 17201 17202
June 16
167. 315 G
246с
1 405 с 216» 106 291 с (769) (1231) June 17
17198 17200 17202
.917 306.8 .611 133.6 .703 58.2 .714 1 2 2 . 2 . 808 25. 8 .852 57.5 (-10.4)
.915 303.3 . 706 9. 9 .477 152.3 .522 43.9 .533 134.9 . 779 49. 3 .941 60.5 ( -9. 9)
.794 234.4 .432 172.0 .429 151.8 .474 33.8 .972 70.4 .935 57.8 (-9.6)
. 909 240. 2 .772 351.8 . 456 199. 4 . 380 183. 4 . 902 69. 2 .878 56.0 (-9.2)
276. 8 186. 2 175.0 174. 7
+33. 6 -24. 1 +22.3 -21. 6
(215.1) (+ 0.9)
189. 7 185. 6 176.5 175.8
+45. 0 -23. 8 +23.0 -21.0
(199.6) (+ 1.1)
2 77 4 63
(146)
0 72 4 61
(137)
(808)
4 426 27 314
(771)
79 с 211 139 (603)
155 170 /
154 251 (730)
141 185.4 -24.0 176.7 -20.9 172. 5 +24. 2 113.4 +19.3
87 111 1 10
443 578 13 63
207 с 199 (189.2) (+ 1.2) (209) (1097) (547)
314 161 185. 2 -24. 1 177.1 -20.9 112.7 +19.3
66 116 10
438 701 45
241 / 287 (175.7) (+ 1.3) (192) (1184) (1003)
Group 17197. June 10 - 16. Tiny scattered spots In high northern latitude not seen on June 14. Group 17198. June 1 0 - 2 2 . A regular spot, with one or two close companions, Just preceding Group 17200. By June 17 the umbra begins to d i v i d e and the whole spot splits Into two by June 21, decreasing In area as It approaches the limb. Group 17199. June 11-12. A few tiny spots. Group 17200. June 11-23. A stream, undergoing considerable changes from day to day. Immediately following group 17198. Group 17201. June 11 - 16. Return of group 17188. A few small unstable spots. Group 17202. June 16 - 22. One or two small spots.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 14
POSITIONS AND AREAS OF SUNSPOTS AND FACUL/E FOR EACH DAY IN THE YEAR MEASURES U.T.
Group No.
Dlst.
1955
G 1361a 17198 17200 17202
June 18
169. 359
17198 17200 17202
June 19
170. 341
С 1361b 17198 17200 17202
June 20
171. 310 G
17198 17200 17202
June 21
172.311 G
17198 17200 17202
June 22
Angle 0
168. 273
С
POS
.915 296.5 . 772 345. 7 . 988 244. 3 .552 218.4 .456 213.0 .793 65.9 . 828 50. 5 ( -8. 7)
.785 331.8 .688 231.3 .612 231.1 . 640 59. 7 .770 44.5 ( -8. 3)
. 903 290. 5 .839 329.2 .889 291.1 .803 238.0 . 736 237. 2 . 479 48. 4 . 933 67. 2 ( -7. 8)
. 962 . 900 .819 . 903 . 850 .371 . 895 .905
290. 6 323. 4 299.6 242. 3 241. 5 23.8 56. 8 72.6 ( -7. 4)
. 929 320. 4 . 907 296. 5 . 906 258. 5 .815 305.2 .782 315.0 . 974 244. 6 . 944 244. 8 . 322 352. 4 .816 71.3 .869 53.0 (-7.0)
POSITION Long. Lat. 0
AREA 1016
Umbra; ^J Spots
MEASURES Faculs
Group No.
Dlst.
16 58 81 7
(163.0) (+ 1.4) (162)
50 364 639 32
135 197 240 /
Angle
June 23
. 976 294. 9 .960 321.6 .892 301.5 . 985 244. 3 ( -6. 5)
174. 564 G June 24
. 955 298. 7 .859 125.5 (-5.9)
173. 360 С
17200
174 с 225 (1085) (971)
POS
о
1955
0
242. 2 -25. 1 185. 0 -24. 3 178.4 -21.0 112.9 +19.8
и. т.
POSITION Long. Lac. 0
AREA Umbrœ
°;:e Faculae Spots
0
173.5 -24.8 (95.7) ( + 2 . 0 )
33 (33)
252 137 222 248 441 с (248) (1052)
(0)
383 135 (0) (518)
(0)
183 284 (0) ( 4 6 7 )
(42.6) ( + 2 . 5 )
(0)
204 185 126 (0) (515)
308. 1
40
( 79. 8) ( + 2. 1)
296 184. 6 179.3 112.8
-24. 2 -21.2 +20.0
71 99 5
(148.7) (+ 1.5) (175)
148 (1083) (444)
116 204 197. 0 183.7 177.5 113.4
+19. 3 -24.0 -22.2 +20.0
0 78
103 1
4 387
Î 847 5 10
202 с
240 (135.7) (+ 1.6) (182) (1248) (762)
157 242 264 183. 6 -23. 9 176.7 -22.8 113.6 +21.5
39
116 10
(122.8) (+ 1.8) (165)
251
Î 613с 9075 47 166 80 (1205) (1522) 201 231 68 183 65
184. 0 177.5 112.2
-24. 1 -23.0 +20.4
(109.6) (+ 1.9)
20
104 1
(125)
13
°? $ 710 9
No spots or faculœ
June 25
393 670 20
692с '
89 180 (849) (1709)
176. 339 G June 26
. 969 . 855
177. 373 G
.916 289.5 . 900 304. 1 .913 129.3 ( -4. 7)
June 27 178.414 G
17203
June 28
179.489 G June 29
17203
180. 318 G
17203 17204 June 30
181. 528 С
July 1
17203 17205 17204
293. 7 299. 1 (-5.1)
. 969 290. 6 .994 123.1 .939 35.6 ( -4. 2)
.957 125.3 .951 61.4 ( -3. 7)
. 891 289. 1 .863 305.9 .908 127.5 .991 58.0 . 874 56. 7 . 959 63. 5 (-3.3)
.934 301.4 .803 134.8 .925 72.4 .938 56.3 ( -2. 8)
( 56. 3) ( + 2. 3)
-32. 5
( 28. 8) ( + 2. 6)
306. 9
-32. 5
( 14. 6) ( + 2. 7)
(40)
36 (36)
305.6 -32.0 281. 1 +32. 1
43 32
( 3. 6) ( + 2. 8)
(75)
305. 4 -32. 3 280.4 +17.3 280. 1 +32. 5 ( 347. 6) ( + 2. 9)
71 5 54 (130)
303 (303)
161 187 с 173 (521)
314
450 с 186 (314) (636)
164 159 357 376 с 199 205 с 189 120 (556) (1213)
124 329 256 с 21 140 с 305 352 с (655) (872)
Group 17203. June 28-July 10. A regular spot with occasional small companions. On July б It begins to become elongated before splitting up and dying out. Group 17204. June 30-July 11. A regular spot, quickly disintegrating and dying out. Group 17205. July 1 - 6 . A small spot, with a companion on July 2.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 15
POSITIONS AND AREAS OF 1 SUNSPOTS AND KACULVE FOR EACH DAY IN THE YEAR MEASURES U. T.
Group No.
1955 182. 312 G
Dl St.
Long.
POS
;
Angle
17203 17204 17205 July 2
Lat.
о
0
. 947 .834 .734 . 877 .863
AREA
POSITION
299. 0 233.0 141.1 54. 3 71.8 ( -2. 4)
MEASURES
Umbree ••hole Faculas Spots
о
304. 3 -32. 2 280. 0 +32. 3 278.3 +17.2 (337.2) ( + 3 . 0 )
U. Т.
Group No.
55 52 10 (117)
297 302 36 (635)
125 100 297 с 367 с 121 с (1010)
17203 17205 17204
.638 . 682 .756 .945
July 3
155.1 67. 6 48.7 110.7 (-1.9)
303. 8 281.1 280. 3
-32. 3 +17.4 +32. 2
(322.3) ( + 3 . 1 )
42 3 53
267 12 286
17206 17207
(98)
(565)
59. 8 63. 5 (-0.2)
. 920 . 747 .809 . 566 .656 .780 .973
304. 7 305. 7 223.9 324. 4 53.7 61.5 115.1 (+0.3)
17203 17204 17206 17207 July 8
184. 336 G
17203 17205 17204 17206
. 594 . 534 .647 . 983 . 795 .893
July 4
302. 8 -32. 3 169. 1 62. 1 280. 9 +17. 2 41.4 280.3 +31.7 64. 5 230. 9 +25. 7 44. 7 113.7 (-1.5) (310.4) (+ 3.2)
32 3 48 0
(83)
293 11 258 13
189. 339 G
510/ 299 229 (575) (1038)
17203 17204 17206 17208 17209
. 842 . 899 .681 .468 . 766 .967 . 954
July 9 185.331 G
17203 17205 17204 17206
. 593 . 368 .535 .943 .765 .914
July 5
186. 300 G
17203 17205 17204 17206 17207
. 923 .633 . 247 . 479 . 884 . 966 . 842 .895
July 6
187. 305 G
17203 1362a 17204
.940 .714 .576 . 487
186. 5 48. 4 27.7 64.8 118.2 123.3 (-1.1) 303. 5 202.0 16. 2 8. 2 63. 8 65. 0 127. 8 116.6 (-0.6) 307.6 215.0 319.4 345. 4
301.9 280. 6 280.4 227. 5
(297.3) ( + 3 . 3 )
-32. 5 +17.0 +31.5 +24.6 +25. 0
(284.4) (+ 3.4)
284 5 234 52
(104)
(575)
700 с 107 192 (999)
190. 330 G
17203 17204 17206 17208 17210
36 1 60 8 10
(115)
300. 1 296. 4 279.3
4 - 14. 6-16.
Group 17209. Group 17210.
July 9 - 1 2 . July 10 - 14.
9-11.
-32. 6 +29. 0 +31.4
24 0 40
504 с 231 с 128 90 (600) (1067)
173 6 226
. 928 .961 . 785 .395 . 672 .856 . 876 . 977
July 10
224 5 222 105 44
191.325 G 17204 17206 17207 17208
128
July July
July
49 1 47 7
114 300. 7 280.3 279.8 223.9 209. 6
Group 17206. Group 17207.
Group 17208.
-32.7 +17. 3 +31.3 +24. 8
Angle
. 794 . 887
July 7
261 с 175 (436)
Pos>
о
1955
188. 315 G 183. 438 G
Dl St.
85 p
July 11
Small unstable spots. Intermittent. One or two small spots.
. 972 .775 . 870 . 385 .373 .558 . 777 .797 .921 .925
302. 2 230. 8 313.6 38.2 55. 7 117.6 60. 0 (+0.8)
Long.
Lat.
о
о
221.6 +25.8 210.2 +25.0 (271.1) (+ 3.5)
299. 6 280. 2 222.0 209. 3
-32. 9 +30. 6 +25.7 +24. 1
(257.8) (+ 3.6)
299. 7 279. 1 225.7 198. 5 172.8
-32. 5 +30. 9 +25.0 +28. 1 -25.5
( 244. 2) ( + 3. 7)
299. 4 234.5 299.0 -32.5 308. 6 277.2 +31.9 224. 2 +26. 1 16.0 196. 2 +30. 1 47. 7 119.2 177.4 -22.4 60. 4 62. 6 (+1-2) (231.1) (+ 3.9) 234. 2 315.8 308. 2 274. 0 +34. 8 346. 8 223.5 +25.9 209. 1 +24. 1 22.0 35.4 195. 9 +30. 7 56. 1 124.3 61.2 38.3 (+1.6) (217.9) ( + 4 . 0 )
A pair of small spots on July 9; a single tiny spot on July 10 and 11.
A f a i n t spot, seen only on July 9 and 12. Small changing spots, not seen on July 11 and 12.
AREA
POSITION
umbrœ 8 2 ( 74)
15 24 4 4
(47)
6 14 6 7 0
ти1
Soa * 40 17 ( 462)
104 132 26 18
18 77 58 35 10
(198)
0 9 9 3 2
9 60 83 U 12
5 13 6 3
(27)
180 83 388 с
175 с 417 (280) (1243)
(33)
(23)
287 с 240 с ( 740)
149 346 с
87 с 540 с 235 (1357)
190 341 / 174 с
731 / 213 200 (175) (1849)
25 153 30 5
192 128 274 p
124 133 132 90 (213) (1073)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, i9S5.
С 16
POSITIONS AND AREAS OF SUNSPOTS AND FACULAE FOR EACH DAY IN THE YEAR MEASURES U. T.
Group No.
o
1955 192.312 G
17206 17211 17209
July 12 193. 320 G
17206 17211 17210
July 13 194. 302 G
17206 17210 17211 17212 1362b
July 14 195. 336 G
Dlst. ,PosAngle
17207 17211 17212
July 15
POSITION Long. 0
Lat.
. 948 306. 4 . 738 303. 2 .451 177.0 . 405 5. 4 . 784 127. 9 . 736 66. 0 . 832 27. 6 .840 57.6 .925 67.4 (+3.0) . 875 295. 8 . 733 298. 6 .456 332.0 .673 138.4 .811 26.0 .910 57.5 (+3.4)
MEASURES
Umbrae ^ole Faculœ Spots
O
.957 302.1 . 857 308. 6 . 809 239. 9 . 489 326. 8 222. 5 +27. 9 .591 45.7 176.4 +27.9 . 716 134. 1 170.0 -26.4 . 818 5V. 5 .912 34.5 .960 63.0 ( +2. 1) (204.9) (+ 4.1)
.936 305.8 . 926 248. 6 .611 311.1 . 456 26. 0 .508 154.3 . 800 54. 1 .885 32.0 .913 62.9 ( +2. 5)
AREA
306 249 138
3 10 1
(14)
34 54 15
+27. 2 +28.2 -23.1
4 10 5
(19)
+26.9 -22. 3 +28.0 -25.6 +20.4
( 178. 5) ( + 4. 3)
209.3 178.9 135.1
+23.6 +27.9 -26.3
( 164. 9) ( + 4. 4)
4 5 13 4 4
149 140 204 (103) (1303)
38 39 46
0 4 9 (13)
0
.951 .841 .790
198. 434 G
July 18 199. 667 G
1362с 17214 17213 17215
17212
July 16
Group Group Group Group Group
.946 .814 . 765 .575
295.2 298.5 228. 6 152.7 (+3.9)
134. 8 -26. 4 (151.9) ( + 4 . 4 )
17211. July 12-15. 17212. July 1 4 - 2 2 . 17213. July 19-20. 17214. July 19-20. 17216. July 19-22.
4 (4)
.881 .863 .945 .921 . 850 . 694
July 19
294. 5 303.7 232.2 171.1 (+4.3)
0
Lat.
Umbrae ^ole Faculœ Spots
0
260 109 472 133.5 -26.7 (138.7) ( + 4 . 5 )
3 (3)
8 (8)
299.2 235.8 301.7 ( +4. 8)
(0)
178 782 109 (0) (1069)
300.8 232.2 252.4 244.4 289. 0 308. 8 ( +5. 4)
( 123. 9) ( + 4. 6)
176. 1 -14. 8 170.4 -21.3 165.4 +18.6 145. 9 +29. 5 ( 107. 6) ( + 4. 8)
3
11
29 10 1 (43)
139 38 5 (193)
12 39 38 14
10
(113)
5 12 26
17214 17213 17215 17212 1362d
. 980 . 926 .911 . 968 . 930 .776 .751 . 569
254. 3 298. 8 235.4 246. 3 287. 3 305.2 230.1 304. 7 ( +5. 7)
170.4 -21.5 167.0 +17.8 145.2 +29.8 137.8 -25.1 128. 8 +23. 0 (98.4) ( + 4 . 8 )
40 7 2 13 0 (62)
17212
. 906 . 889
300. 1 238. 8 ( +6. 2)
139.6 -24.8 ( 82. 9) ( + 4. 9)
10 (10)
17215 17212 1362e
.885 . 826 .952 .959 .805
325.7 297. 9 299.3 242.5 129.3 (+6.5)
200. 355 G
234 p
66 с
40 / July 20
(901) 571
201. 528 С July 21
121 n
235 248 (43) (1175)
202. 351 G
July 22 196. 313 G
. 944 .816 .772 .527
Long.
(841)
279 170 74 с 247 с 86 с (856)
(123) (979)
208 132 120
(30)
Dlst. POS Angle
AREA
117/
101 222.2 177. 0 176.0 135.3 132.9
1955 197.313 G 17212
119 247 218 (191.5) ( + 4 . 2 )
Group No.
July 17
298 97 222. 5 178.4 177.7
и. т.
POSITION
15 (15)
667 194 89
July 23
(950)
July 24
}
)• J
A small spot, with a companion on July 12 and 14. A few small spots, not seen on July 18 and 19. A pair of small spots on July 19; a single spot on July 20. A group forming near the west limb. A tiny spot, not seen on July 21.
144. 0 +29. 3 141. 0 -24. 5 27. 8 -27. 0 (72.0) ( + 5 . 0 )
No spots or faculœ
0 25 0 (25)
143 296 222 209 с 165 с 173 с
143 28 6 47 15 (239) (1208)
87 (87)
178 167 с (345)
8 126 8 (142)
87 92 197 с 180 с 61 с (617)
GREENWICH PHOTO-HELIOGRAPH:с RESULTS, 1955.
С 17
POSITIONS AND AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE YEAR MEASURES U. T.
Group No.
Dl St.
1955
205.423 G
Poa
-
Angle 0
1362f
July 25
. 952 240. 4 . 924 49. 8 .928 71.5 ( +7. 8)
AREA
POSITION Long. 0
98, 3
La t.
MEASURES
ole
Umbra ^ Facuüe Spots
(31.4) ( + 5 . 3 )
Group No. *"•
8 ( 8)
30 ( 30)
118 с
207. 322 G July 27
17216
17217 17216
. 974 . 984
. 739 . 955
246. 8 69. 4 (••8.2)
149. 9 68. 0 ( +8. 6)
298.0 +21.2 ( 18. 6) ( + 5. 3)
339. 6 -34. 8 293. 0 +22. 6 (6.3) (+ 5.4)
0 (0)
0 12 (12)
139 14 217 с (14) (356)
212.336 G
17218 17216
10 59 / 76 210 с (86) (269) Aug. 1
208. 339 G
17217 17216
July 28
209. 141 К
17216
.697 161.0 . 866 66. 9 . 938 128. 7 .943 58.1 (+9.1)
. 768 .911 . 928
July 29
65. 4 134.6 57. 5 (+9.4)
336.6 293.4
-35.8 +22.6
( 352. 8) ( + 5. 5)
293. 4
+22. 3
( 342. 2) ( + 5- 6)
0 15
( 15)
14
(14)
4 100
( 104)
197 с 204 178 ( 579)
86 с 179 181 (104) (446)
213.335 G
17216
July 30
211.343 G
17218 17216
Group Group Group Group
. 923 238. 1 . 878 299. 9 . 556 58. 2 295.3 +21.9 . 787 143. 1 .819 5 4 . 1 . 897 133. 7 . 947 56. 1 .976 113.2 (+9.9) (325.8) (+ 5.7)
. 903 . 630 .404
17216. 17217. 17218. 17219.
229. 0 168. 7 45.5
134 96 34
G
July 26-Aug. 4. July 2 7 - 2 8 . July 31-Aug. z. Aug. 4 - 14.
-32. 3 +21.8
17218 17216
218
47
(34)
150 149 240 130 (218) (946)
Aug. 3
215.433 G
2 30
9 144
Aug. 4
о
Lat.
.659 .307 .785 .792 . 890 .927
17216 17219
201.3 331.7 44.5 130.2 64. 5 115.1 (+11.1)
.748 215.1 . 466 304. 5 . 798 60. 5 .853 120.4 .951 56.3 (+11.5)
. 824 . 624 . 869 . 784 .956
222. 7 297. 1 56. 1 129. 3 117.9 (+11.9)
303. 1 295.7
Umbra? ^
ole
Facula
о
304.1 -31.7 .613 185.7 .287 14.7 295.5 +21.8 .821 148.7 .836 51.0 .875 119.3 . 949 65. 5 .968 111.1 ( +10. 7) (300.0) (+ 5.8)
Aug. 2
185 304. 7 295.1
17218 17216
104
214.420 210. 379 G
Long.
. 769 48. 8 .847 142.1 .891 55.8 .952 117.3 ( +10. 3) (313.1) ( + 5 . 7 )
125 85 ( 328)
July 31 206. 391 G July 26
Se о
1955
0
-26. 0
и. т.
AREA
POSITION
-32. 1 +21.5
(32)
6 14
( 20)
2 10
72 140 270 230 (153) (897)
28 72
( 100)
110 167 154 270 171 ( 872)
19 70
106 117
( 286. 7) ( + 5. 9)
303-0 296. 5
-32.5 +20. 6
(272.4) (+ 5.9)
(12)
4 4
(89)
38 42
( 8)
( 80)
0 5
22 23
264 189 (676)
101s/ 218 196 182 ( 697)
161 295. 4 200. 8
+21. 3 +32. 2
(259.0) (+ 6.0)
A group of small unstable spots, with maximum area on July 30. A tiny spot. Small unstable spots. One or two tiny spots until August 8. Later there Is a brief Increase In area.
(5)
172 с 114 146 (45) (593)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 18
POSITIONS AND AREAS OF SUNSPOTS AND F AWL JE FOR EACH DAY IN THE YEAR MEASURES Group No.
U. T.
Dis t.
1955
0
216. 352 G 17219 17220 17221 Aug.
.944 . 888 .787 . 781 .951 .979 .915 . 946
5
217. 424 G 17219 17220 17221 Aug.
os f Angle
.946 . 893 . 798 .651 . 852 .904 .921
6
POSITION Long. 0
AREA
Lat.
199. 9 174.1 173. 6
Umbra ^О1е Faculse Spots
и. т.
No.
2 8 77
(87)
+32. 6 +16.0 -22. 5
3 27 86
(232.7) (+ 6.1)
(116)
7 34 407
(448)
96 186 126 96 с 209 с 212 с 192 157 (1274)
220. 314 G
173 240 99
Aug. 9
16 156 592
136с 315 с 145 (764) (1108)
17219
17220 17221
17222
221.429 G
17219
17220 17222
17219 17220 17221
Aug.
.922 . 922 .882 .798 .538 .726 .825 .771 . 849 . 969 .980
7
291.3 229. 9 213.4 305.8 34.2 73.6 122.5 138.4 60. 2 60. 9 115.0 (+13.0)
191 175 116 105 200. 7 175. 2 172. 9
+32. 1 +16. 1 -22. 3
(221.5) (+ 6.2)
3 55 ПО
(168)
14 296 625
222.443 G
17219
17220 17221
17222 Aug.
219.302 G 17219 1363a 17220 17221
Aug.
8
.927 .913 . 904 .458 . 389 .534 .706 . 906 . 933 .937
233.6 218.4 303. 8 18.0 198.2 +31.9 190.1 +21.3 47. 0 69.2 176.6 +16.3 130.4 172.5 -22.0 127. 6 59. 6 118.3 (+13.4) ( 207. 8) ( + 6. 3)
Group 17220. Aug. 5-16. remains the only stable Group 17221. Aug. 5 - 17. components. These take Group 17222. Aug. 9 - 18.
145 144 208 1 3 91 127
(222)
223.311 G
150 / 174 182 338 (1144) (1341)
17219
17220
17221
17222 Aug. 12
Long. 0
Lat.
.945 . 932 . 858 . 791 .510 .164 . 485 . 808 .828
300.1 239. 5 309. 4 236. 4 330.6 2.6 164. 4 66. 2 128.8 ( +14. 2)
.930 . 900 . 856 .852 .617 . 269 .481 .651 .783
.952 .900 . 898 .771 . 720 . 430 . 533 . 508 .954
307.9 246. 3 232. 3 296.1 316.5 306. 3 190.8 62.9 135.3 (+14.5)
Umbrae
^°}e Facula; Spots
О
305.1 303.4 233.6 355.0 197.1 +32.6 58. 1 177.7 +16.0 143.9 173.1 -21.8 67.6 125. 4 +23. 1 145.0 58.0 134.4 123. 4 50.6 (+13.8) ( 194. 5) ( + 6. 3)
11
8 15 427 694
AREA
POSITION
.944 .827 .815 .447 . 328 .576 .931 .782 .832 .834 . 886 .911
Aug. 10
96 с 340 с 62 147 100 157 (935) (1489)
,POSAngle 0
17221
218. 267 G
Dlst.
1955
0
310.3 227. 5 293.9 54. 3 199.1 +31.3 174.1 +15.8 75.3 172.6 -23.0 115.1 122.3 59. 7 (+12.3) (246.8) ( + 6 . 1 )
230.9 292. 5 218. 3 44.7 74. 9 118.5 60.7 (+12.7)
MEASURES Group
206 105 154 12 111 137 9
56 511 847 36
111 с 70 123 128 289 104 (269) (1450) (1290) 110 181 145 121
196. 9 179.3 171.7 126.5
+32. 4 +15.8 -21.3 +22.9
( 179. 7) ( + 6. 4)
31 80 137 32
134 474 867 119
(280) (1594)
79 с 316 (952) 170 136 128 250
196. 3 179.2 171.8 127. 7
+32. 1 +15.4 -21.7 +22. 3
( 166. 3) ( + 6. 4)
248.3 234.2 296. 0 218.7 195.7 +32.1 309. 4 292. 8 179.0 +15.5 209. 9 171.3 -21.2 55. 8 127.9 +22.4 68.4 (+14.8) (154.8) ( + 6 . 5 )
26 78 147 28
128 430 853 130
(279) (1541)
21 74 140 26
68 392 800 142
(261) (1402)
A stream, developing from a single spot, In which the leader becomes a regular spot and component. Return of group 17214. A stream, which by August 10 has coalesced Into two principal on regular outline as they near th'e limb. Small spots, not seen on August 16 and 17.
43/ 128 (855) 192 170 279 107 93 с
151 (992)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, i9ss.
С 19
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR MEASURES
MEASURES
AREA
Oroup
U. T.
NO.
DISU
,PosAngle
о
1955 224. 389 С
17219 17220 17221 17223 17222
Aug.
POSITION
. 943 .819 . 638 . 669 . 578 .349 . 844
(+15.2)
13
225. 360 G
298. 4 303.8 286. 2 226. 2 168. 1 37.6 68. 2
17219 17220 17221 17223 17222
.903 . 776 .781 .557 .265 . 929
Aug. 14
301.4 284. 8 235.0 183.4 357.9 97. 2 (+15.6)
Long.
Lat.
0
0
193.0 179.9 171.8 132.9 127.4
+31.1 +15.2 -22.0 -27.8 +22.3
Umbree 1?lole Faculœ Spots
и. т.
115
25
81 106 2 15
384 716 15 103
153 с
17220 17221 17223 17222
. 965 .918 . 847 . 891 .901 . 600 .341 .830
Aug. 15
227. 350 G 17220 17221 17224
Aug.
. 861 .799 .971 . 968 .412
16
302. 2 230.7 298. 9 284. 4 241.5 202. 1 323.3 33.7 (+15.9) 298. 6 231.1 285.2 245. 3 50.9 (+16.2)
Dlst D1St '
17222 17224
.959 .905 . 900 .831 .275
18
17221 17224
Aug. 17
Group Oroup Group Oroup
.947 . 894 . 872 .825 .991 .271
297.8 238. 0 307. 5 222.6 248.1 21.8 (+16.6)
242.0 302.3 230. 1 291.5 332.7 (+16.9)
Long. о
Lat.
Umbrae ^ole Faculœ Spots
о
231 146 188 130.7
0
8
10 (10)
53 (61)
+21.6
82. 4 +20. 9 ( 74. 7) ( + 6. 8)
218 с (783)
166
( 140. 6) ( + 6. 5)
191.6 178.7 171.1 129.8 128.3
+31.1 +15.6 -21.8 -27.0 +21.9
( 127. 7) ( + 6. 6)
(210) 0 76 116 3 7
(1243) (434) 6 362 683 13 45
241 с 63 с 131 с
230.335 G
17224
178.8 173. 8 130.0 128. 0
Aug. 19
75 95 1 6
(115.3) (+ 6.6)
(177)
(1109)
(502)
231.307
410 589 6 32
224 235 89
Aug. 20
292/ 444 с
232. 362 G
Aug. 21
17224
17224 17225
85
(1037) (1369)
233.318 G
107 227
55 85 1 (141)
416 400/ 481 473 с 8 (905) (1207) 211 224 104 141
167. 4 -20. 5 82.3 +21.2 ( 88. 5) ( + 6. 7)
17823. Aug. 13 - 15. 17224. Aug. 16 - 23. 17225. Aug. 21 - 24. 17226. Aug. 24- Sept. 2.
299. 0 235.2 292. 8 307. 2 (+17.2)
121 209 240
81. 6 +20. 2 ( 62. 0) ( + 6. 8)
6 (6)
65 (65)
20
120
(570)
67
(202)
+15.8 -22. 1 -27.3 +22. 2
178. 6 +16. 3 172.5 -21.8 81.4 +21.3 (101.4) (+ 6.7)
. 945 .943 . 876 . 397
17224 17225
. 946 . 594 .834
. 760 .705
.921 . 879 .603 . 956
Aug. 22
234.343 G
17224 17225
. 960 .561 .932
Aug. 23 228. 326 G
Pos>
Angle 0
G
G 226. 300 G
No.
229. 370
Aug.
AREA
Group
1955
6
POSITION
7 3 (10)
90 14 (104)
235.321 G
300 с (980)
Aug. 24
17226 17225
.984 . 796 . 594 . 838
292. 8 293. 6 130.8 (+17.6)
( 49. 1) ( + 6. 9)
(20)
(120)
289. 9 141.7 (+17.9)
84.3 +19.5 5. 8 -27. 5 ( 35. 2) ( + 6. 9)
21 4 (25)
139 16 (155)
43 1
239 10
( 44)
( 249)
39 6
213 20
300.6 288. 9 154.8 63. 4 (+18.2) 288. 8 174.2 65.3 ( +18. 5)
289.2 40. 6 190. 1 62. 9 ( +18. 8)
208
84. 2
+19. 4
107
(315) 76 с (76) 86
84.5 6. 0
+19.9 -26. 4
196 с 114
( 22. 6) ( + 6. 9)
84. 0 5. 4
+20. 0 -26. 8
( 396)
306с 170
(9.0) (+ 7.0)
(45)
(233)
(476) 175
311.9 2. 9
+42.2 -28. 7
2 0
17 6
(2)
(23)
85с 104
(356.1) (+ 7.0)
One or two tiny spots. A small stream, slowly developing as It approaches the llrab. One or two tiny spots. A stream quickly breaking up after August 30 and dying out before reaching the limb.
(364)
GREENWICH PHOTO-HELIOGRAPHic RESULTS, 1955.
С 20 POSITIONS
MEASURES U. T.
Group No.
Met.
1955 236. 364 G
17226
.696
POSITION
/ Angle
Long.
о
о
о
312.7
+42.3
POS A
31.8
. 787
63. 1
.903 . 944
134.4 59. 7 ( +19. 1)
Aug. 25
AND AREAS OF SUNSPOTS AND FACUL/E
Lat.
(342.3) ( + 7 . 0 )
FOR EACH DAY IN THE YEAR
AREA
MEASURES
ole
Umbra; ^ Faculse Spots
и. т.
Group No.
Dlst.
1955 12
(12)
58
(58)
17229 17230
101 110 171 (382)
.741 .973 .834 . 873 .908
Aug. 29 237. 365 G
17226 17227
. 777 . 624 . 609 . 866 . 928
Aug. 26
238. 374 G
17226 17227 17228 17229
. 893 .771 . 585 . 425 . 760 .959 .888 . 936
Aug. 27
239. 305 G
17226 17227 17228 17229
.918 . 590 . 286 .634 .875 . 789 . 907 .941 .968
Aug. 28
240. 308 G
17226 17227 17228
Group Group Group Group Group Group Group Group
. 638 .238 .475
220. 4 19. 0 313.1 +42.8 66. 5 292. 9 +19. 8 60. 5 52. 5 ( +19. 4) (329.1) ( + 7 . 1 )
230. 1 217.7 5. 1 56. 7 57. 8 111.5 51.5 62. 5 ( +19. 7)
235.4 353. 1 36. 4 51.7 115.7 46. 0 56. 2 68.2 112.6 ( +20. 0)
339. 0 341.2 38.4
+42.5 +20. 1 +28. 8 -18. 2
(315.8) ( + 7 . 1 )
( 37)
155 17
( 172)
86 137 ( 268)
54 26 2 24
311 103 7 109
(106)
(530)
50 19 4 20
238 98 23 88
(93)
(447)
42 3 3
211 18 10
80 с 207 с 160 127 (815)
241. 379 G
+42. 8 +20. 2 +29. 0 -18.4
( 303. 5) ( + 7. 1)
308. 4 294. 9 270. 7
+43. 2 +20. 1 +28. 5
17226 17227 17228 17229 17230
242. 649 G
Lat.
0
0
О
124.4 64.8 111.3 124. 3 52.1 ( +20. 2)
250. 0 211.9
-19. 3 +26.1
( 290. 2) ( + 7. 1)
10
6
Umbrae l? * Faculœ Spots
12
60
19
117
(79)
(416)
243.311 G
Sept. 1
307. 8 291. 9 269. 3 250. 3 211.1
+43. 2 +20. 1 +29. 3 -19. 1 +26.0
37 2 1 16 31
175 12 9 65 140
327.5 311.6 15.3 136. 4 64.5 118.5 59. 7 ( +20. 5)
(276.1) ( + 7 . 2 )
(87)
(401)
304. 1 +43. 5 292. 4 +20. 2 252. 5 -19. 3 211.0 +25.7 193. 9 +30. 2 179.0 +18.0 172.7 +26.9 ( 259. 3) ( + 7. 2)
20 4 20 25 17 23 67 (176)
96 23 85 132 81 108 350 (875)
8 1 16 21 11 22 22 78
69 6 75 143 76 89 170 375
17226 17227 17229 17230 17231 17232 17233
. 804 . 570 .460 . 763 . 909 .981 .995
320. 4 295. 4 165.8 62. 2 60. 0 73.0 63.5 ( +20. 8)
17226 17227 17229 17230 17231 17232 17234 17233
. 882 . 715 .450 . 668 . 843 .945 .979 .974 . 886 .916
316. 2 289. 6 185.0 59. 4 58. 4 73.6 113.6 64.0 124. 6 52.1 (+21.0)
Aug. 31
181 с 111 148 159 112 (882)
.716 .344 .394 . 598 .904 .818 . 972
Aug. 30
171 309. 0 293. 1 269. 0 247.5
Long.
106 с 182 с 93 135 122 (638)
45 33 4
180 61
311.8 293. 7 268. 8 246. 1
f ûs / Angle
AREA
POSITION
307. 8 295. 7 252.9 211.1 194. 5 178.5 176.3 171.8
+43. 6 +19. 0 -19.3 +25.5 +30. 3 +17.8 -21.3 +26.9
(250.5) ( + 7 . 2 )
138 с 118 104 (360)
303 с
141 с 200 с 137 p 104 p (885)
293 с
151 с 342 с 234 с 162 с 158 191 (179) (ЮОЗ) (1531)
17227. Aug.26-Sept. 2. Variable spots with a brief maximum on August 27. 17228. Aug. 27 - 30. A tiny spot, with a companion on August 28 and 30. 17229. Aug.27-Sept. 5. A small spot, with one or two unstable companions. 17230. Aug.29-Sept. 4. A close pair of spots, coalescing and dying out near the central meridian. 17231. Aug. 31-Sept. 5. A pair ОГ spots, breaking up and dying out. 17232. Aug. 31-Sept. 10. Return of group 17220. A persistent small spot. 17233. Aug. 31- Sept. 14. A stable regular spot. 17234. Sept. 1 - 9 . Return of group 17221; third appearance. A small regular spot, with a companion from September 2 to September 7.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 21
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR
и. т.
Group No.
Dlst.
1955
244.451 G
17226 17227 17229 17230 17231 17232 17234 17233 17235
.937 . 864 .521 . 496 . 726 .834 .908 . 899 .921 . 833 . 847 . 885
Sept. 2
Pos A
Angle
Long.
Lat.
о
0
0
314.5 287. 9 213.3 49. 3 53. 7 73.2 117.3 63. 4 73.9 54. 7 44. 1 126. 7 ( +21. 3)
303.5 295. 7 253.0 211.0 192. 7 178.7 175.9 171.3 167. 6
+44.0 +19. 1 -18.8 +25.4 +30. 8 +17.9 -21.0 +27.0 +17. 6
(235.3) ( + 7 . 2 )
MEASURES
AREA
POSITION
MEASURES
Umbrœ ^°le Faculee Spots
0
37
308 с
0 6 21 18 16 17 64 20
11 34 137 83 83 145 324 120
151 с
(162)
и. т. 1955 247. 609 (i
108 с 258 с 268 / 235 с 112 89 175 (974) (1704)
Group N0.
»•"•
О
17229 17237 17232 17238 17234 17233 17235 17239 17236 17240
. 928 .889 . 769 .323 .378 . 549 . 504 . 454 . 598 .817 .941 .836 .928 .939
Sept. 5 245.317 G 17229 17230 17231 17232 17234 17233 17235 17236
.949 .919 .628 . 378 .615 .716 .817 .812 . 818 .982 .892
Sept. 3
246. 294 G
17229 17237 17230 17231 17232 17234 17238 17233 17235 17236
. 963 . 795 .753 .601 .307 .501 . 553 .709 .605 . 686 . 683 . 938 . 792 .808 .873 . 889
Sept. 4
Group Group Group Group Group Group Group
1723Б. 17230. 17237. 17238. 17239. 17240. 17241.
313.5 292.9 228.0 253.4 -18.5 34. 3 210. 5 +25. 1 47.1 192.5 +30.9 72.1 178.5 +17.8 176.3 -20.7 121.9 170.7 +26.7 62.1 168.8 +17.1 74. 1 143.0 +27.5 63.3 131.9 ( +21. 5) (224.0) (+ 7.2)
290. 4 302. 5 237.6 217.3 2.9 34.0 68. 2 130.0 64.0 58. 0 72. 1 63. 4 62. 5 139.6 119.0 128. 8 (+21.8)
Sept. Sept. Sept. Sept. Sept. Sept. Sept.
-18.4 -21.9 +25.0 +31.3 +17.9 -21. 2 +21.2 +26. 8 +17.5 +27. 4
(211. 1) (+ 7.2)
2-8. 3-11. 4-8. 4 - 6. 5-7. Б - 14. 7-11.
300. 9 245.1 233. 3 52.7 49.2 148. 2 46. 7 66. 1 55. 2 61.1 119.2 123.0 53.5 68.9 ( +22. 1)
Long.
Lat.
0
О
251.7 235.3 178. 2 176.0 175.8 169. 6 168. 2 160.8 140.2 129.6
-18.2 -22.0 +18. 2 +21.1 -20.9 +26. 7 +17. 1 +26.0 +27.6 -24.3
( 193. 8) ( + 7. 2)
AREA
Urabrœ )?ole Faculs Spots
0
5
73 6 0 19 71 2 3 39 16
309 19 11 107 329 13 14 223 91
157 174 с 85 с
137с 196 с 86 114 131 (229) (1121) (1080)
214 186 6 17 10 19 20 81 12 47
26 94 69 71 115 351 87 259
248.318 G 17237 17232 17238 17234 17233 17235 17239 17236 17240
397/ 296 с 228 с 164 с 163 (212) (1072) (1648)
134 145
253.0 234.1 210.1 192.0 178.6 175. 6 175.6 170. 6 168.3 140. 5
Se
POSITION
4 7 7 3 11 21 0 74 12 38
(177)
21 39 36 24 41 125 11 351 59 226
Sept. 6
249. 302 G 91 /
233 с 167 162 190 152 (933) (1274)
.918 .913 .851 . 220 .288 .493 .412 .337 .497 .730 .882 .927
Sept. 7
17237 17232 17234 17233 17239 17236 17241 17240
.861 . 942 .218 . 482 . 337 . 363 .585 . 849 .811 .823 .919
246.0 304.9 238.4 28. 9 28.0 163.9 34.6 56.7 47.6 58.8 122.4 62.1 ( +22. 2)
289.1 242. 7 331.9 188. 9 6. 5 28. 7 51.5 147. 9 128.5 62.4 55.9 ( +22. 5)
235.6 178.0 176. 1 176.0 169. 3 167. 3 160. 4 139.9 129.9
-22.0 +18.2 +21. 8 -21.0 +26. 7 +17. 5 +26. 1 +27.4 -24.1
( 184. 4) ( + 7. 2)
236. 3 177.6 176.0 169. 0 160.3 140. 5 135.3 127. 0
-22. 6 +18.2 -21.2 +26. 7 +25.6 +27. 5 -40.2 -25. 1
(171.4) ( + 7 . 2 )
A stream of changing spots, not seen on September 7. A small regular spot, with a distant companion except on September 8, 9 and 11. A bl-polar group, forming quickly within a Tew days of the west limb. A tiny spot. A tiny faint spot. A few small spots with a backward d r i f t In longitude. A pair of small spots, except on September 10 when only one Is seen.
61 5 0 20 68 4 0 30 10
(198)
97 7 13 66 0 29 4 2
417 24 3 105 324 32 8 182 61
204 171 186 с
145 с 335 с 234 (1156) (1275)
566 26' 67 327 17 159 17 26
138 384 с
80 с 345 с 130 166 (218) (1205) (1243)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 22
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR MEASURES
и. т.
Group No.
Dis t.
1955 250. 309 G
17237 17232 17234 17233 17235 17236 17241 17240
.927 . 784 . 981 . 370 .549 . 374 . 245 . 444 . 792 .726 .817 .931 . 947
Sept. 8
251.301 G 1364a 17232 17234 17233 17236 17241 17240
Sept. 9 252.312 С 17232 17233 17236 17241 17240
' Angle
Long.
о
о
292.9 297. 9 245. 5 302. 1 212.9 334. 5 322. 5 36. 6 157. 3 136.7 56.7 122.0 69. 9 ( +22. 7)
232. 177. 176. 168. 167. 140. 134. 124.
Lat.
. 965 . 898 . 860 . 774 .716 . 636 .367 .745 . 570 .926
. 920 . 876 . 874
Group 17242. Group 17243.
295. 3 242. 5 304. 5 232. 5 288.6 304. 5 341.6 177.7 166. 1 118.9 ( +23. 1)
MEASURES
AREA
ole
Umbrae *? Faculee Spots
5 3 6 4 1 8 6 7
-22. 2 +18. 1 -20. 5 +26. 7 +18. 3 +27. 6 -40. 2 -25. 8
(158.1) ( + 7 . 2 )
177. 1 167.6 139.2 129.4 122. 9
+18. 3 +26.9 +27.5 -40.7 -26. 4
(131.7) ( + 7 . 2 )
304. 0 225. 1 289. 5
Sept. 11-20. Sept. 12 - 17.
и. т.
Group No.
Dlst.
5 5 5 60 1 23 8 13
(120)
0 4 1 54 15 11 15
(100)
3 72 14 7 13
(109)
76 15 23 346 16 113 47 53
150 173 379 с
93 с 227/ 160 123 262 (689) (1567)
9 11 9 298 73 47 71
18 354 74 33 63
17233 17236 1364b 17241 17240 17242
. 868 . 767 . 777 .483 .351 . 754 . 564 . 774 .835
Sept. 11
17233 17240 17243 17242 1364e 1364d
306.7 240.7 224.6 286. 9 203.7 233.7 297. 1 202.5 358.6 61.9 135.0 123.5 ( +23. 5)
17233 17240 17242
. 959 . 946 .857 .785 .771 . 954 . 699 .448
243. 7 288. 5 213.3 233.5 301.2 296. 3 216. 7 51.7 ( +23. 7)
17233 17240 17242
.953 .920 . 857 . 846 . 994 . 794 .322
245.4 219.7 236. 4 298. 7 296. 6 227. 9 31.7 (+23.9)
Sept. 12 255.341 G
214 160 255 152 92 p
Sept. 13
195 (542) (1068)
286 145 173
256.349 G
Sept. 14
POSITION Long.
0
Lat.
AREA
10
e
Umbrae ™ ^ Spots
Facultt
0
237. 9 285. 1 166. 9 +27. 1 299. 4 318.0 138.9 +27.7 313.5 133.3 +20.9 194. 8 132.0 -39.6 187. 3 122. 2 -26. 7 66. 8 67. 4 +22. 5 128.6 ( +23. 3) (117.6) ( + 7 . 2 )
.930 .913 .911 . 889 .804 .765 . 880 .612 .410 .622 .769 .873
254. 334 G
180 88 108 с
79 230 140 (518) (825)
POS
; Angle о
1955
о
. 906 297. 5 .815 228.8 221.1 +19.4 . 965 288. 3 . 548 292. 6 177.0 +18.2 . 664 227. 6 176. 4 -20. 4 167. 8 +26. 8 .491 314.9 140. 1 +27. 6 .359 12.3 . 749 168. 7 134.0 -40.0 . 633 148. 8 123. 7 -26. 0 . 766 50. 1 . 893 69. 1 . 897 126. 4 ( +22. 9) (145.0) ( + 7 . 2 )
Sept. 10
253. 380 G
Pos A
POSITION
166. 5 +27. 2 120. 2 -27. 4 105.7 +31.3 68. 6 +22. 8 67. 4 -27. 3 52.0 -24.5 (105.0) ( + 7 . 2 )
165. 5 +27. 2 119.7 -27.6 69. 4 +22. 7 (91.7) ( + 7 . 2 )
164. 6 +27. 1 119.5 -26.7 67. 9 +23. 0 ( 78. 4) ( + 7. 2)
58 3 1 2 6 2
(72)
33 3 0 23 0 0 (59)
62 0 32 (94)
31 0 36 (67)
291 15 11 9 30 9
375 156 80 с
142 с
66 (365) (1423)
159 451 122 354 199 66 257 с
296 9 20 92 2 9 87 с (428) (1695)
237 258 195 123 84 308 /
297 4 155 (456) (1205)
176 214 195 164 290/ 141 с
119 6 209 (334) (1180)
A stream of small spots, of which the leader Is the only stable component. Intermittent. A wide pair of spots on September 12; a single spot on September 16 and 17.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 23
POSITIONS AND AREAS OF SUNSPOTS AND FACUL/E FOR EACH DAY IN THE YEAR POSITION
MEASURES U.T.
Group No.
1955 257.332 G
17243 17244 17242 1364e
Dlst.
.964 . 942 . 930 .878 . 720 .544 . 269 . 364 .938
Sept. 15
Pos n
„ Angle
Long.
0
о
224.3 240. 3 297. 1 229.9 303. 7 191.9 348. 7 23. 7 17.9 ( +24. 1)
Lat.
MEASURES
AREA
le
Umbrae ™i° Faculœ Spots
о
218 240 238 341 108. 3 72. 5 68. 7 56. 0
+28. 8 -24. 9 +22. 5 +26. 5
(65.4) ( + 7 . 2 )
1 19 36 0 (56)
8 65 167 3
и. т.
Group No.
1955 262. 325 G
17244 17242 17246 Sept. 20
17244 12742
.952 .836 .615 .390
Sept. 16
235.0 300.6 212.0 311.4 ( +24. 2)
17246
282 144 72. 2 -24. 6 69.6 +21.8 (51.3) ( + 7 . 2 )
12 17 (29)
78 97 (175) (426)
17243 17244 17242
. 943 . 706 . 559
Sept. 17
260.311 G 17244 17242 17245
. 955 . 919 .825 . 720 .562 .929
Sept. 18
297. 4 224. 0 297. 4 ( +24. 4)
296. 9 309. 4 233.3 292. 3 210.9 126.5 ( +24. 5)
110.6 +28.2 71.6 -24.4 71.1 +21.0 ( 39. 1) ( + 7. 2)
72. 6 71.4 44. 2
-24. 6 +20.9 -21. 9
( 26. 1) ( + 7. 2)
0 10 16 ( 26)
9 10 0
(19)
7 77 83 ( 167)
51 57 7
233n/ 103 с ( 336)
17244 17242 17245
.846 . 901 .841 .682 . 939 . 983
Sept. 19
Group Group Group Group Group Group
17244. 17246. 17246. 17247. 17248. 17249.
304.4 238. 3 291.3 225.9 64. 9 49. 1 ( +24. 7)
Sept. Sept. Sept. Sept. Sept. Sept.
70. 1 70.1 44. 7
-24. 5 +21.7 -22. 2
( 12. 9) ( + 7. 1)
15 - 20. 18 - 19. 20-21. 23 - 29. 24-26. 26-30.
6 7 6
(19)
0
0
Lat.
Umbree j™0-1-6 Faculse Spots
0
179 156 159 с 157 i>
(100)
100 240 с 225 с 130 253 (948)
294. 1 250.6 239. 3 70.8 +31.2 300. 6 45. 3 58. 8 (+25.0) (346.3) ( + 7 . 1 )
.965 .957 . 848 .919
253.1 243.3 42. 7 63.3 (+25.1)
265. 698 17247 G Sept. 23
.986 . 788
17248 17247 1365a
.593 .954 .892 . 763 .977
266. 326 G
84 (115) (735)
35 43 22
. 969 .928 . 895 . 990 . 908 . 943
Sept. 22
Sept. 24 261. 309 G
Long.
.826 245.7 . 799 234. 1 71.0 -25.6 .974 241.5 70. 1 +20. 2 .937 288.9 .915 302.1 65. 5 +32. 1 . 874 68. 1 .955 47.3 ( +24. 9) (359.5) ( + 7 . 1 )
Sept .21 264.323 G
259. 319 G
,PO£;' Angle
37 0 0
(37)
115
123 103 443 с
328 с 109 с 189 271 (134) (1566) 7 12
97 (243) (1134) 263. 325 G
258. 402 С
Dlst.
AREA
POSITION
267. 639 G
17248 17247 17249 Sept. 25
(333.1) ( + 7 . 0 )
115.0 238. 8 -23. 1 36. 1 ( +25. 3) (314.9) ( + 7 . 0 ) 183.8 309. 3 -29. 1 116.6 239. 3 -22. 7 296.0 9. 9 +26. 3 34. 3 73.6 (+25.4) ( 306. 7) ( + 7. 0)
.927 295.1 . 863 227. 5 . 658 208. 9 310.5 -28.6 .852 122.7 238. 2 -23. 1 . 888 73. 7 226. 1 +17. 6 ( +25. 5) ( 289. 3) ( + 6. 9)
A stream of small spots. A small spot. A pair of tiny spots on September 20; a single spot on September 21. Return of group 17237. One or two small spots dying out on the central meridian. A pair of tiny spots. A few faint spots, not seen on September 26 and 27.
0
(0)
(0) 26 (26)
203 144 151 7 146 с 379 127 (7) (1150)
(0)
94 122 328 100 (644)
216
130 p 149 (216) (279)
4 25 0
22 130 10
( 29)
( 162)
212 с 92 с 78 166 ( 548) 148 77
5 17 0 ( 22)
18 65 4 ( 87)
315с 226 с ( 766)
С 24
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. POSITIONS AND AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE YEAR MEASURES
Ü. T.
AREA
POSITION
MEASURES
Group
No.
Diet.
POS / A
Angle о
1955 268. 307 G 17247
.929 .756 . 784 .813 .814 .821 .947 .977
Sept. 26
Long.
Lat.
о
о
235.6 217.2 127. 3 237. 9 -23. 3 112.8 43.2 72.7 61.0 72.4 ( +25. 6) ( 280. 5) ( + 6. 9)
Umbra
18
(18)
1016
N* Spots
Faculs
217 71 75 310 с 110 116 235 145 258 (75) (1462)
и. т. 1955 272. 409 G
Group No.
Dlst.
0
17251 17252 17253 17249
.825 . 905 .962 . 995 .271 .832 .857 . 887 .944
Sept. 30
269- 342 G 17250 17247
.967 .816 . 844 . 673 . 893 .915 . 923
Sept. 27
270. 340 G 17250 17247 17249
.914 . 768 . 925 .569 . 475 . 784 .795 .931 . 939 . 945
Sept. 28
271. 301 G
17250 17247 17249
Sept. 29
Group Group Group Group Group Group Group
. 938 .965 .521 .356 . 806 .905 .921 . 929 . 938
235.9 228.3 309. 3 136. 7 40. 8 73-1 45. 7 ( +25. 7) 233.8 232. 2 306. 8 153.4 64. 4 55. 5 71.4 121.6 70. 4 54. 7 ( +25. 8)
237. 3 302.7 173.0 45.0 66. 8 51.5 119.7 77. 5 65. 2 (+25.9)
321. 0 236. 9
+36. 4 -23. 3
( 266. 9) ( + 6. 9)
320. 5 237.6 227.1
+36. 4 -23.9 +17.9
( 253. 7) ( + 6. 8)
317.0 237.0 225.4
+33.3 -24.3 +21.1
(241.0) (+ 6.8)
8 19
(27)
3 4 0
(7)
0 4 11
(15)
152 136 32 106 с 126 120s/ 143 244 151 (158) (1052)
23 67 4
8 41 84
273.317 G 1365b 17251 17252 17253 17254
132 67 100 с
.903 . 869 .428 . 807 . 870 . 959 .992 .794 . 822 . 872 .930
Oct. 1
90 166 146 228 204 (94) (1133)
274. 434 G
17255 17251 17252 17253 17254 17256
186 181 с
113 204 279 174 257 (133) (1394)
Oct. 2
Pos
Angle
A
. 963 .917 .897 . 888 . 786 . 496 .659 .765 . 870 .947 . 985 . 760 . 780 . 856 . 899 .927
POSITION Long.
Lat.
0
е
Umbrae ^°1: Spots
Faculse
0
320.0 161. 8 +29. 5 60. 5 116.1 157.1 -22.8 140.2 +22.0 68. 5 11.3 223. 1 +22. 1 50.8 73.6 124. 4 134.8 ( +26. 0) ( 226. 4) ( + 6. 8)
311.5 320. 4 228. 0 -14. 6 212.2 58. 5 162. 6 +29. 1 120. 4 160. 4 -22. 2 68. 9 139. 8 +22. 1 68.0 129. 6 +22. 6 132.6 47. 2 67. 9 132.0 +26. 0) (214.4) ( + 6 . 7 ) 309. 7 289.7 315.6 239. 1 227. 5 69. 3 52.8 126.9 67. 7 68.9 69. 5 64. 7 127. 8 139. 5 57. 1 118.1 ( +26. 1)
AREA
167
15 1 86 1
(109)
61 29 345 6
212 с 234 с 190 p
161 155 220 152 (441) (1491)
124 116 2 20 4 90 27
(143)
7 89 18 371 103
126 с 240 с
366 с 101 113 154 122 (588) (1462) 132 125 164 102 178
+15.9 +28. 8 -22.3 +22.6 +22. 1 +21.3
3 20 12 114 6 11
( 199. 7) ( + 6. 7)
(166)
171.0 163. 1 158.4 139.2 127. 5 118.0
17250. Sept. 27 - 29. A pair of tiny spots on September 27 and 28; a single spot on September 29. 17261. Sept. 30-Oct. 10. Return of group 17233. A stream оГ small changing spots. 17252. Sept. 30-Oct. 3. Two or three small spots. 17253. Sept. 30-Oct. 13. A stable regular spot, with occasional small companions. 17254. Oct. 1-14. A group or variable spots. 17255. Oct. 2 - 6. One or two tiny spots. 17256. Oct. 2 - 9 . A small spot, not seen on October 7 and 8.
7 98 37 540 38 87
155с 324 p 126 с 95 111 118 172 153 (807) (1955)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, IQSS.
С 25
POSITIONS AND AREAS OF SUNSPOT3 AND FACUL« FOR EACH DAY IN THE Y E A R MEASURES
U. T.
Group No.
Dl s t.
POS
Long.
, Angle о
1955 275. 337 G 17255 17251 17252 17253 17254 17256
. 950 .948 .846 .274 . 543 .655 .762 . 872 . 935 .834 .844 .894 .960 .975
Oct. 3
276. 362 G 17255 17251 17253 17254 17256 17257
.901 .811 .163 .416 .610 . 714 . 837 .933 . 767 .802 .923 .945
Oct. 4
277.337 G
17255 17251 17253 17254 17256 17257
Group Group Group Group
.958 .947 .935 . 895 . 819 .273 . 346 .445 . 545 .710 .835
17257. 17868. 17259. 17260.
0
240. 6 315.0 231.4 55.8 43. 1 135.6 65.6 68. 2 69. 7 125.8 55.8 119.4 61.2 119.2 ( +26. 2)
238.3 288.9 10.8 23.8 60.9 65. 5 68. 8 71.0 50. 8 125.6 122.9 58.4 ( +26. 2)
243.0 251.8 237.4 287. 9 295. 2 303.0 354. 5 51.2 59. 4 66.6 70.0
Oct. Oct. Oct. Oct.
Lat.
MEASURES
AREA
POSITION
016
Umbrœ W" Spots
и. т. Faculœ
Group No.
123 +15.2 +29. 3 -22.1 +22.8 +22.2 +21.3
(187.7) ( + 6.6)
2 12
9 81
6
17
+15.7 +28. В +22.6 +22.0 +21.3 +20. 1
(174.2) (+ 6.6)
103 4 13
Я - б. 6-14. 7 - 9. 7 - 15.
+14.8 +26.6 +22. 1 +21.7 +21.0 +20.2
о
о
(140)
114 с 175 P 269 / 81 108 137 79 188 ( 7 1 4 ) (1671)
3 13 113 8 6 5
(148)
Lat.
Umbras
V lolß
? Facula; Spots
о
56. 5 128.2
60 170
.883 .903
136.8 57.4
175
. 967
66. 5 ( +26. 2)
75
( 1 6 1 . 4 ) ( + 6.5)
(113)
(628)
95 (1396)
556
13 38
278. 352 G
17255 17251 17253 17254 17256 17258 17257
21 74 582 52 31 37
89 с 129 с 354 с 90 134 196 169 (797) (1686)
2
7
6 87 7 3 8
40 497 32 16 36
197 с
.967 . 947 . 423 .487 . 309 .412 .549 .671 . 714 .808 . 834 . 882 .883 .955 .967 . 977
Oct. 6
17259 17251 17253 17254 17258 1365c 17260
Oct. 7
291.5 285. 5 296. 5 322.3 27. 7 47.4 60.6 53.2 68. 1 136.6 56. 3 65. 7 126.9 53.5 116.9
151 154 171.2
+16.7
167.7 139. 1 129.0 117.3 110.4 103.4
+28.6 +22. 1 +22.2 +21.1 +28.8 +20.0
1 10 83 4 2 0 3
.916 .895 .891 . 780 . 639 .279 . 300 . 539
284.4 301.0 292.3 298. 7 310. 2 345.7 1 2. 7 40. 7
.773 .986
131.6 110.7
.801 .904 .915 . 932 .968
63.6 121.5 68.2 56. 7 121.1 ( +26. 3)
Л small spot on October d arid fl; a p a i r on October 4 and 5. Л small spot, w i t h one or two close v a r i a b l e companions. One or two small spots. A stream of small spots, not seen on October 13.
10 69 428 46 7 6 18 197
67. 7
( +26. 3)
279.351 G
212 109 68 161 74 175.0 163.5 139. 5 131.2 117.3 104.9
Long.
AREA
. 804 .847
Oct. 5
344 181 172.4 163. 2 139.1 129.9 117.5 104. 5
P0b
; Angle
1955
0
157 240 174.2 162. 6 158.2 139.1 127.0 117.7
Dlst.
POSITION
(148.0) ( + 6.4)
( 103)
121 145 90 204 249 359 ( 584) ( 1670)
76
99 109 184. 3 168.8 139.0 130.7 111.0 95.0 57.6
+26. 2 +29.6 +22.0 +23.3 +29.9 -25.9 -19.1
(134.8) ( + 6.4)
7
22
14 88 5 32 2
77 382 52 1 34 7
9
109
(157)
(783)
?! г 165 с 89 187 330 146 210 (1482)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 26
POSITIONS AND AREAS OF SUNSPOTS
MEASURES U. T.
POSITION
AND FACULTE FOR EACH DAY IN THE YEAR
AREA
MEASURES
Group NO.
os Dist. ;Angle -
o
1955 280. 468 G
17259 17251 17253 17254 17258 17260 17261
.975 .972 . 887 . 860 .815 . 802 . 908 . 795 .417 . 305 .414 .922 . 960 .804 . 811 . 872 .910 . 969
Oct. 8
281.424 G 17259 17251 17262 17253 17254 17256 17258 1365d 17260 17261 Oct. 9 282. 342 G
17251 17262 17253 17254
Long. o
Lat. o
291.5 300.0 237. 1 308. 3 284.9 230. 3 296. 1 185. 1 +26. 2 +30. 1 303. 5 169. 8 310.9 139.7 +21.7 128. 2 +22. 1 334. 3 14.8 113.0 +29.7 113.9 57.0 -19.1 117. 7 51. 4 -24. 3 128.9 66. 7 56. 3 126.3 64. 9 ( +26. 3) (120.0) ( + 6 . 3 )
.940 235.8 . 930 306. 2 .916 246.0 . 898 283. 6 . 952 297. 3 180. 2 +27. 8 . 884 301. 2 168. 4 +30. 4 . 804 237. 4 153.9 -21.3 . 556 300. 7 138.3 +21.8 .429 310.6 127.9 +22.0 . 296 340. 0 113.6 +22.3 . 402 354. 3 110.0 +29.8 .816 131.7 63. 8 -28. 3 .830 117.7 56. 7 -18. 7 . 899 121. 2 49. 9 -24. 5 .801 53.0 .905 65.4 ( +26. 4) ( 107. 4) ( + 6. 3) . 948 286. 6 . 890 298. 7 . 823 292. 4 .757 231.0 . 940 299. 6 .901 241.6 . 699 294. 8 . 584 300. 0
Group 17261. Group 17262. Group 17263.
165. 6 +29. 9 154.0 -22.2 138.1 +21.6 128. 3 +22. 1
Oct. 8 - 1 4 . Oct. 9 - 1 1 . Octi 12-13.
Umbra* ™*ole Faculae Spots
и. т.
Group No.
Dlst.
о
1955
10 7 74 4 15 19 16
(145)
53 48 377 35 93 89 58
21 38 34 367
4 0 22 2
43 19 112 14
(174)
0 0 88 5
17258 1365e 17260 17261 Oct. 10 283. 362 G
199 с 199 с 122 174 124 186 80 (753) (1851)
6 10 8 77
35 10
99 117 101 69 67 102 133с 79 с
194 84 116 106 183 p 157 с 158 £
147 с 177 с 274 с 139 109 (836) (1844)
;°7 Angle
17262 17253 17254 17258 17260 17261 Oct. 11 284. 365 G
17253 17254 17263 17258 17260 17261 1365f Oct. 12
.467 330.0 . 550 59. 0 .722 123.6 . 808 126. 4 . 850 65. 6 . 986 61. 7 ( +26. 4) . 940 295. 4 . 836 234. 6 . 972 244. 7 .832 291.8 .751 293.7 .583 313.6 . 589 134. 1 .701 135.6 .951 64.2 . 960 58. 8 ( +26. 4)
.915 238.5 . 861 306. 8 . 932 290. 8 . 878 292. 1 .795 230.0 .716 305.8 . 464 153. 7 . 606 147. 1 . 844 62. 2 .973 114.2 ( +26. 4)
POSITION Long. 0
Lat.
AREA
Umbree ™j oie Faculœ Spots
О
1 10. 8 +29. 7 64.9 +21.8 56. 0 -18. 7 49. 9 -24. 3
20 2 26 9
(95.3) ( + 6 . 2 )
(150)
98 15 91 34
(631) (1273)
154.1 -22.8 137.7 +21.4 129.4 +21.7 110.6 +29.0 55.5 -18.7' 49. 3 -24. 8
0
9
82 45 22 12 8
357 211 60 61 19
(81.9) ( + 6 . 1 )
(169)
137.9 +21.6 129.9 +22.3 111.2 -26.2 110.2 +29.3 56. 1 -18. 5 47. 4 -24. 8 12. 2 +26. 6 ( 68. 6) ( + 6. 1)
73 54 5 9 7 6 0
(154)
260 / 46 117
226 152 184 с 96 с 146с
180 / 179 99 (717) (1262)
352 246 13 41 47 16 7
116 171 121 с 188 с 154 с
216 с 181 (722) (1147)
143 45
6 13 331 43
285. 466 G
17253 17254 17258 17263 17261
132 190 78 76 172 с 202 с Oct. 13
. 960 . 934 .933 .811 . 990 .965 .849 . 895 . 489 .775 .910 . 970
242. 1 304. 6 224.4 298.1 290. 6 291.7 301.0 235. 6 168. 4 57.7 117.5 63. 5 ( +26. 3)
A small spot with a companion on October 12. A pair of tiny spots. A pair of tiny spots on October 12; a single spot on October 13.
157 178 92 226 137.3 +21.2 129. 9 +22. 5 1 10. 5 +29. 3 109. 9 -27. 1 48. 0 -22. 5
( 54. 1) ( + 6. 0)
75
38 7 0 0
(120)
374
1 193' 21 8 5
342с 189 с
141 184 113 (601) (1622)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 27
POSITIONS AND AREAS OF SUNSPOTS AND FACULVE FOR EACH DAY IN THE Y E A R MEASURES U. T.
Group No.
Dlst.
1955 286. 367 G
17254 17258 17260 17261 13656
.958 . 949 . 875 . 797 .991 . 909 .483 .512 .838 . 905
Oct. 14
POS
POSITION
Angle
Long.
о
о
A
237.1 307. 9 227. 1 307. 2 291.1 298. 0 210.3 197.3 122.2 63. 9 ( +26. 3)
Lat.
AREA ole
Umbras ^ Spots
MEASURES
и. т. Faculœ
о
+21.7 +27.9 -18.8 -23.3 -22.6
( 42. 2) ( + 5. 9)
°
0 5 0 0
(5)
32
j5
19 40 4 4
380 с
212 с 108 (99) (1267)
. 908 . 866 Oct. 18
291. 544 С
17264
17260
.946 . 938 . 932 . 822 . 596
Oct. 15
288. 366 G
. 937 .905 . 834 . 793 .772 . 920
Oct. 16
289. 364 G
. 970 . 927 . 875 . 864 .801 . 923
Oct. 17
290. 362 G
. 972 . 950 . 946
291.4 299. 7 232. 9 232. 7 226. 1 ( +26. 3)
297. 5 237.7 228. 3 293. 4 237.5 124. 7 ( +26. 3) 242. 6 233. 6 293. 7 243. 3 230.0 127. 3 ( +26. 2)
175 143 121 164 55. 2 -19. 1 ( 28. 3) ( + 5. 9)
( 15. 9) ( + 5. 8)
(2.. 7) ( + 5 . 7 )
237. 2 292. 0 246. 5
Group 17264. Oct. 19-30. for a few days and dies Group 17265. Oct. £0 - 29. Group 17266. Oct. 22-Nov. 4. Group 17267. Oct. 23-Nov. 4.
1 (1)
(0)
(0)
11 (11) (603)
(0)
(0)
157 211 164 155 156 84 (927)
202 199 148 193 125 86 (953)
194 174 261
. 949 .949 .917 .964
Oct. 19
292. 331 С 287. 426 G
Dlst.
1955
210 97 178 82 126.0 107.1 57.1 51.7 352.4
Group No.
17264 17265
.973 .907 .991 .951
Oct. 20
293. 297 С
17264 17265
.836 .793 . 949 .925
Oct. 21
294. 295 С
17264 17265 17266
. 867 . 642 .857 . 995 .910 .949 .957
Oct. 22
295.311 С
Oct. 23
17264 17265 17266 17267
.945 .475 .737 .957 .978 .850 . 877
Pos
POSITION
Angle
Long.
о
о
304. 8 232. 8 ( +26. 2)
305. 5 238.3 295.1 71.6 (+26.1)
237.3 72.2 66.6 44.2 ( +26. 0)
301.2 71.0 66. 2 43.4 ( +26. 0)
238. 5 66. 7 65.2 62. 5 41.7 118.5 73.3 ( +25. 9)
242.0 59.0 61.8 62.4 113.0 71.8 124. 2 ( +25. 8)
Lat.
258. 7 +19. 1 (333.9) ( + 5 . 5 )
+18. 5 +23. 9
(323.6) ( + 5 . 5 )
258. 8 238. 8
™r* Soïs
Faculœ
о
( 349. 5) ( + 5. 6)
258. 2 239. 9
AREA
+18. 3 +24. 3
(310.8) ( + 5 . 4 )
(0)
34 (34)
36 7 (43)
43 19 (62)
99 192 (0) (920)
222
135 262 112 266 с
( 2 2 2 ) (775)
92 216 с 130 с 189 (302) (627)
208 94
97 139 с 189 с 125 (309) (550)
209 100
133 259. 3 239. 6 211. 7
+18. 8 +23. 9 +27.8
( 297. 7) ( + 5. 3)
45 20 29
(94)
212 90 206
319 /
123 236 92 (508) (903)
97 258. 9 239. 2 210.9 209. 7
+18. 8 +24. 0 +27.9 -21. 2
( 284. 3) ( + 5. 2)
41 19 58 72
256 79 313 526
236/ 211 с 273 с 56 187 (190) (1174) (1060)
A stream In which the leader Is the f i r s t to die out. The follower breaks up Into a cluster out before reaching the limb. A small alowly-dlmlnlshing spot. A regular spot. A large composite spot, followed by a train of small variable spots.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 28
POSITIONS AND AREAS OF SUNSPOTS AND FACUL/E FOR EACH DAY IN THE YEAR MEASURES U. T.
1955 296. 374 G
Group No.
17264 17268 17265 17267 17266 17269 17270
Dlst.
. 857 . 290 . 375 . 582 .894 .877 . 967 .989 .900
Obt. 24
297. 365 G
17264 17268 17265 17267 17266 17269 17270
.234 . 162 .437 . 786 .772 .887 .942 .953 . 959
Oct. 25 298. 541 G
17264 17265 17271 17267 17266 17269 17270
.335 . 326 . 428 . 642 . 623 . 738 . 850 . 878 . 972
Oct. 26
299.417 G
17264 17265 1366a 17267 17266 17269 17270
Group Group Group Group Group
.457 .351 . 307 . 530 . 509 .614 . 754
17268. 17269. 17270. 17271. 17272.
POS
POSITION
Angle
Long.
Lat.
о
о
о
248. 4 +18. 7 35. 1 260. 1 248.6 +9.7 76. 5 54. 9 239. 0 +23. 8 117.6 211.8 -21.8 210.4 +27.8 60.9 194. 5 +27. 1 63. 3 192.2 -24.0 115.3 71.5 ( +25. 7) ( 270. 2) ( + 5. 1)
356.0 62. 8 41.2 123. 4 57.6 61.0 117.6 65.6 58. 2 ( +25. 6)
258.2 248. 8 238. 9 212. 3 209. 9 196. 0 191.6
+18.4 + 9- 1 +23. 8 -22. 1 +27. 8 +28. 0 -23.8
(257.2) ( + 5 . 0 )
255.8 +18.8 316.3 8. 5 238. 7 +23. 6 27. 7 228. 9 +26. 9 211.7 -22.0 133. 6 49. 8 209. 3 +27. 8 54. 1 198. 7 +29. 2 122. 4 190. 0 -24. 1 59. 7 57. 3 ( +25. 5) (241.7) ( + 4 . 9 ) 303.9 337.3 7. 0 146. 8 39. 2 45.2 128. 5
253. 7 238. 6 227. 8 212.0 208. 9 200. 1 189. 9
Oct. 2 4 - 2 5 . Oct. 24-Nov. 5. Oct. 24-Nov. 5. Oct. 26-Nov. 1. Oct. 28-Nov. 9.
+19. 1 +23. 5 +22. 5 -21.7 +27. 6 +29. 7 -24. 3
AREA
MEASURES
Umbra ^ole Faculs Spots
и. т.
Group No.
Dist.
1955 81 43 2 13 139 73 8 72
242 21 65 574 335 46 354
(350) (1637)
49 2 11 164 66 30 78
Oct. 27 307 с 112с 239 p 170 с 88 (997)
242 9 62 763 309 163 426
225 с 77 с 210 с 282 с 187 134 (400) (1974) (1115) 36 5 2 163 54 39 83
223 28 12 856 291 247 488
(382) (2145) 32 5 0 160 49 39 81
192 24 4 748 287 201 469
.811 . 927
300. 364 G
17264 17265 17271 17267 17266 17269 17270 1366b 17272
.785 . 619 .465 .413 . 454 .416 .497 . 642 .723 . 989 . 861 .935 .935
Oct. 28 301. 366 G
248 с
17264 17265 17271 17267 17266 17269 17270 17272
119 с
. 782 .619 .524 .458 . 399 .428 .537 .941 . 852 .867
Oct. 29 264 207 (838)
195 с
302. 367 С
Oct. 30
17264 17271 17267 17266 17269 17270 17272
pos
, ;
Long.
Lat.
о
о
о
Angle
56.7 56. 5 ( +25. 3)
285.2 295. 2 314.8 337.7 169. 3 19.5 31.4 137. 1 55.9 68. 9 52. 4 64.1 117.4 (+25.2) 290. 8 302.8 320.0 192.8 350. 6 11.6 151.8 68.5 60. 2 119.4 (+25.1)
. 892 . 664 .524 . 474 .433 .477
289. 3 309. 0 212.5 327. 1 347.5 173.7
. 848 .933 .939
67. 1 61.5 118.3 (+24.9)
AREA
POSITION
(230.1) ( + 4 . 8 )
Umbra: ^°1е Spots
(366) (1925)
Faculœ
173 205 (573) 138
253.8 238. 6 227. 7 212.4 208. 6 200. 4 189.2 175.4 135.3
+19.0 +23. 5 +27. 0 -21.7 +27. 6 +29. 5 -23.8 +27.4 +21.5
(217.6) (+ 4.7)
20 2 1 168 56 36 110 3 30
127 10 7 758 302 201 556 23 216
(426)
(2200)
+19.1 +23. 4 +27. 9 -21.7 +27. 8 +29. 3 -23.6 +21.8
18 0 7 181 63 32 89 32
89 6 36 978 282 205 461 219
(204.4) ( + 4 . 7 )
(422)
254.9 238. 8 226. 7 210.6 208. 6 198. 8 188.4 134.1
254.0 227. 0 208.8 208. 1 197. 4 187. 9 134.2
(2276)
+19.3 +28. 4 -21.8 +27. 8 +29. 5 -23. 6 +21.8
9 17 151 51 63 93 42
49 94 947 306 249 520 225
(191.2) ( + 4 . 6 )
(426)
(2390)
A few tiny spots. A stream or small spots, which by November 1 has developed Into a normal bl-polar group. A regular spot with a rew variable companions. One or two small spots, not seen on October 27. Return of group 172БЗ. A regular spot with a distant small companion on November Б.
126/ 211 с 152 147 129 (903) 204 p
207 с 101 115 (627) 238 с
93 с 175 147 (653)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 29
POSITIONS AND AREAS OF SUNSPOTS AND FACUL/E FOR EACH DAY IN THE YEAR MEASURES
и. т.
Group No.
Dl s t.
Po
t A Angle о
1955 303. 362 G
17271 17273 17267 17266 17269 17270 1366с 17272
. 958 . 869 .861 .783 . 735 . 656 .592 . 509 . 498 .453 . 722 . 836 .907 . 940 . 965
Oct. 31 304. 371 G 17271
17273 17267 17266 17269 17270 17272 17274
.943 . 925 . 895 . 872 . 786 . 728 .632 .589 . 566 .981 . 837 . 887 . 892 .903 .931
Nov. 1
187. 8 229. 0 294.0 302.4 285. 3 228. 2 312.8 326. 9 198. 5 55.9 63. 9 59. 6 121.0 61. 7 69. 8 ( +24. 8)
293.5 236. 5 299. 4 283. 7 237. 5 304. 2 313.4 218.5 57. 1 119.2 59. 6 49. 0 69. 2 125.4 62.6 ( +24. 6)
Long. 0
Lat.
Umbra ]*ole Facula: Spots
0
210 137
226. 3 224.9 209.8 207. 3 196. 6 188.0 154.9 134.0
+27. 8 +14.2 -22.0 +27. 6 +29. 4 -23.6 +18.8 +21.7
14 9 144 60 52 75 2 41
70 48 906 270 246 454 13 221
(397)
1955 306. 429 Ü
220 122 с
Group No.
17267 17266 17269 17270 17272 17274
307. 312 С
(2228) (1434) 228
17267 17266 17269 17270 17272 17274
177
226. 8 225.4 210.2 207. 3 196. 5 188.2 134.2 90. 0
+28. 2 +14.1 -21.8 +27. 4 +29. 4 -23.3 +21.6 -27. 5
9 21 119 53 ПО 94 39 33
45 84 703 246 558 457 201 161
196 с 116 с 178 с
G
17269 17270 17272 17274 17275 17276
222 с
G
17273 17267 17266 17269 17270 17272 17274
Nov. 2
Group Group Group Group
. 949 .962 . 880 . 839 . 747 . 709 .415 .926 . 822 . 947
298. 1 283.0 242. 4 299. 7 306. 1 229. 9 43.3 122.1 58. 7 53. 5 ( +24. 5)
+13.7 -21.7 +27. 1 +29. 2 -23.6 +21.6 -27. 5
16 121 58 80 81 34 24
112 571 272 431 374 211 115
G
207с 377с 142 s 17272 17274 17275 17276
315 с 118 102
(151.8) ( + 4 . 3 )
17273. Oct. 31-Nov. 2. 17274. Nov. 1-13. 1727Б. Nov.. 6 - 7 . 17276. Nov. Б - 17. by November 14.
.913 . 863 .978 . 979 .459 .630 .875 .989 .917
POS 4Angle
Long.
о
о
о
209. 9 206. 2 194. 2 188.6 133.9 88. 2
-22. 1 +26. 9 +28. 9 -23.6 +21.5 -27. 3
;
289. 9 245.9 297.2 301.5 238.2 11.5 126.5 63. 9 ( +24. 3)
277. 1 248. 3 296. 3 299. 5 241.9 337. 7 132.8 120.1 ( +24. 1)
296.9 307. 5 298.9 244. 8 311.5 145.9 112.3 61.4 126.5 ( +23. 9)
Lat.
Umbras U o l e Faculs Spots
139
99
% 76 29 22
684
Si
327 201 117
399 с
»«
213 с
266 с 134
(137.6) ( + 4 . 1 )
(338)
(2026) (1656)
108
210.2 205. 4 194. 7 188.0 133.7 88. 0
-21.3 +26. 6 +28. 9 -23.7 +21.5 -27. 3
29 54
65 59 32 20
184 236
1! 332 289 184 105
245 /
356с " 356 с 191 с 211
(126.0) (+ 4.0)
(259)
(1330) (1467) 128 97
189. 9 187. 1 133.4 88. 5 54. 1 29. 9
+29. 0 -23. 7 +21.2 -27. 8 -17. 3 +28. 8
16 53 38 25 32 0
103 307 187 111 126 13
284 с 292 / 93/ 81 с 104
(111.9) (+ 3.9)
(164)
(847) (1079)
(478) (2455) (1746) 236
226.2 208.7 206. 5 195. 4 188.0 134.1 89. 9
. 977 . 998 . 982 . 938 .918 . 328 .748 .913
Nov. 5
309. 435 305. 355
. 926 .968 .935 .859 .839 .306 .841 . 946
Nov. 4 308. 383
136 75 117 147 154
(164.8) (+ 4.4)
Dist.
Nov. 3 182 177 241 145
(178.1) (+ 4.5)
и. т.
AREA
POSITION
MEASURES
AREA
POSITION
(414)
(2086) (14971)
Nov. 6
. 976 . 962 .935 .901 . 834 . 796 . 623 .540 .735 . 945 .912
244. 5 297. 5 234.9 306.9 238. 9 301. I 300. 4 163.5 117.7 60. 1 122.8 ( +23. 7)
140 191 117 145 129 87
+21.4 -27. 3 -17.2 +29. 4
26 21 34 3
(98.0) (+ 3.8)
(84)
133.1 88. 1 55.2 28. 1
177 86 188 20
78 с 177 С 128
(471) (1192)
Two or three tiny spots. A small regular spot, with a companion on November 3-5. A stream of small variable spots. A stream, led by a small regular spot which Is the only stable component anu alone remains
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 30
POSITIONS AND AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE YEAR MEASURES
и. т.
Group NO.
1955 310. 586 G
17272 17274 17275 17276 17277
Nov. 7
Dlst.
Pos
POSITION
A Angle
Long.
о
о
.962 305.1 .934 241.3 . 914 288. 8 . 905 297. 7 . 786 294. 8 . 525 188. 7 . 549 129. 9 . 840 58. 5 . 986 120. 2 . 882 127. 3 ( +23. 5)
Lat.
AREA
MEASURES
ole
Umbra: ^ Facula Spots
о
132.7 +21.6 87. 9 -27. 5 56. 7 -17. 2 28. 6 +28. 2 6. 1 -28. 9 (82.8) ( + 3 . 7 )
Um
T.
25 21 22 35 103
119 77 141 183 589
No.
313.409 G
17280 17274 17275 17281 17276 17279 17277 17278
235 с 283 с 104 (206) (1109) (1156) Nov. 10
311.536 G 17272 17274 17275 17276 17277 17278
Nov. 8
312.363 G
Nov. 9
17272 17274 17275 17276 1366d 17277 17279 17278
. 959 299. 3 . 924 240. 7 . 807 300. 3 . 891 292. 4 . 584 207. 1 .407 152.9 . 739 54. 1 . 944 122. 5 .982 65.5 .849 61.7 . 945 52. 1 . 968 109. 0 ( +23. 3)
. 879 .956 .662 . 366 .641 .728 . 874 .924 .953 .941
298. 8 291.8 219.5 184. 1 47.6 61.9 126. 1 138.6 65.1 110.7 ( +23. D
132.4 87. 7 59. 1 27. 7 5. 0 351.0
+.21.5 -27. 8 -17. 6 +28. 2 -28. 9 +24.7
( 70. 3) ( + 3. 6)
132.2 +21.8 87. 6 -27. 5 61.0 -17.8 26. 9 +28. 5 15.6 +22.5 5. 8 -28. 9 4. 5 -41. 8 347. 4 +24. 8 ( 59. 4) ( + 3- 5)
20 18 26 38 142 96
96 81 136 189 709 684
160 128 176 197 с
314. 481 G
75 с 450 с 271 с 182 83 94 (340) (1895) (1816)
Nov. 11
263 249 с
315.306 С
288 с 92 с 358с 102 (377) (2324) (1352)
Nov. 12
30 17 19 43 1 107 5 155
148 82 90 201 9 572 34 1188
AREA
Group
1955
126 116 81 123 88 с
POSITION
17280 17274 17275 17281 17276 17279 17277 17278
17280 17274 17275 1366e 17276 17279 17277 17278 17282 17283
Dlst.
°SAngle
Long.
о
о
P A
Lat.
tlole
Umbra? ^ Spots
Faculse
о
. 988 246. 6 . 944 295. 7 . 899 294. 6 . 897 228. 2 . 765 297. 1 .778 230.0 .432 215.4 .410 357.4 .511 33.7 . 853 144. 6 .808 130.8 .861 63.8 ( +22. 8)
12 97 93. 0 +22. 6 87. 6 -27. 5 17 76 60. 7 -17. 2 7 35 46. 8 +27. 5 2 18 26. 9 +28. 3 27 150 4.5 -41.4 14 76 116с 117 664 160с 1. 2 -29. 4 348. 0 +24. 1 196 1306 465 с (45.6) (+ 3.4) (392) (2422) (1711)
. 945 306. 7 . 897 294. 1 . 882 236. 3 . 556 230. 8 . 424 334. 2 . 434 9. 0 .788 154.2 .685 141.7 . 737 59. 5 ( +22. 6)
94. 1 +23. 0 87. 1 -27. 5 58.2 -17.5 43. 3 +25. 6 27. 1 +28. 6 4. 1 -42. 1 2. 4 -29. 5 347. 5 +24. 3 (31.5) ( + 3 . 3 )
100 9 48 194 с 12 46 494s/ 2 19 0 4 28 119 12 59 184 с 105 689 176 1449 269 с (344) (2433) (1241)
. 974 292. 6 .945 239.2 . 676 239. 0 . 687 227. 8 . 436 348. 8 .743 162.9 .619 149.8 .615 53.6 .909 121.8 . 992 69. 6 ( +22. 4)
97. 4 +22. 7 86. 8 -27. 6 57.9 -17.8 54. 5 -24. 7 26. 1 +28. 4 3. 6 -42. 0 359. 8 -29. 2 347. 9 +24. 0 320. 7 -27. 0 297. 4 +20. 6 (20.6) ( + 3 . 2 )
0 28 155/ 12 63 239s/ 0 7 1 11 16 117 3 28 94 610 169 1411 0 5 94 с 42 260 191 с (337) (2540) (679)
173 224 94 221 96 с 162 с
Group 17277. Nov. 7 - 1 9 . A long stream of normal type which Is slowly dying out as It approaches the limb. Group 17278. Nov. 8 - 21. At f i r s t a bl-polar group consisting of two fair-sized composite spots. On November 11 Intermediate spots appear to form a stream. The leader remains composite but the follower becomes a regular spot by November 13. Group 17279. Nov. 9 - 1 3 . A few small spots. Group 17280. Nov. 10 - 12. A group of small spots forming near the west limb. Group 17281. Nov. 10-11, A pair of tiny spots. Group 17282. Nov. 12-13. A small spot. Group- 17283. Nov. 12 - 23. A stream In which both leader and follower are small regular spots until November 16. Then they begin to break up and the whole group dies out before reaching the limb.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 31
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR MEASURES U. T.
POSITION
MEASURES
AREA
Group NO.
Dis t.
03
f '
Angle о
1955 316.327 С
17274 17276 17279 17277 17278 17282 17283 Nov. 13
317.479 G 17276 17284 17277 17278 17283 17285 Nov. 14
318. 594 G
17276 17284 17277 17278 17283 Nov. 15
319.372 G 17276 17284 17277 17278 17283 Nov. 16
Group Group Group Group Group
.953 248.2 . 926 226. 3 . 860 246. 2 . 789 238. 7 .990 241.7 . 522 325. 2 .721 172.5 . 550 167. 1 . 478 40. 7 . 816 126. 6 . 959 68. 9 ( +22. 1)
. 977 239. 9 . 959 249. 6 . 905 244. 2 . 680 309. 2 .513 300.8 . 550 188. 4 .377 14.0 .857 67.0 .943 113.2 (+21.8)
. 976 246. 9 .971 294.7 .816 302.0 . 695 292. 4 .617 208.7 . 390 339. 6 . 708 62. 9 .917 124.7 . 962 69. 7 ( +21. 5)
Long. 0
Lat. 0
85. 9 -27. 4 26. 8 +28. 2 359. 8 -42. 4 359.0 -29.2 347. 2 +24. 1 319.9 -27.0 293.9 +21.1 (7.1) (+ 3.1)
104 89 123 129 360s/
0 11 4 72 135 3
45 81 14 459 1189 18 90 с 48 486 333 с (273) (2292) (1228) 161 160 198
28. 4 +27. 7 19. 4 +17. 7 357. 3 -29. 9 346. 3 +24. 3 294. 5 +21. 1 284. 3 -20. 7 (352.0) ( + 2 . 9 )
28. 3 +27. 3 19.4 +17.4 357.2 -30.0 345. 8 +24. 1 295. 1 +20. 9
( 337. 3) ( + 2. 8)
.943 238.0 . 808 208. 3 27. 4 +27. 3 . 890 299. 5 19.1 +17.2 ' . 802 289. 6 356. 2 -30. 2 .686 218.1 .466 321.4 345. 4 +23. 8 . 591 57. 3 295.0 +20.9 . 846 129. 1 .917 68.7 (+21.3) (327.0) ( + 2 . 7 )
17284. 1728Б. 17286. 17287. 17288.
Umbra ]*о1е Faculœ Spots
Nov. 14 - 18. Nov. 14 - 17. Nov. 1 8 - 2 0 . Nov. 10- Dec. 1. Nov. 20-Dec. 2.
и. т.
158 113 189 /
322.384 G
(284) (1814)
10 73 29 129 52
28 347 194 926 296
116/ 87 275 (938)
136 165 224 / 163 с 173 с
65 267 (293) (1791) (1193)
17284 17277 17278 17286 17283
17277 17278 17286 17283 17287
Nov. 19
323.315 С 17278 17286 17283 1367a 17287 17288 Nov. 20
D1
-
Se о
Nov. 17
Nov. 18
49 256 224 918 367
No.
17276 17284 17277 17278 17283 17285
10 65 7 95 39 365 162 1020 60 445 305 с 0 6 88 с (278) (1996) (912)
13 57 34 118 62
Group
1955 320. 301 С
321. 302 С
AREA
POSITION
.902 252.7 .844 213.4 . 958 298. 2 . 909 287. 6 .803 229.6 .601 307.1 .427 44.2 .623 130.8 . 820 68. 8 .951 66.0 (+21.0)
.924 219.9 . 964 287. 0 . 924 237. 6 .730 301.2 . 529 300. 3 .337 19.6 .941 71.9 . 943 62. 1 ( +20. 7)
. 976 . 858 . 706 .341 . 987 . 840 .857
238. 9 296. 9 292. 5 336.7 109. 7 57. 0 72.4 ( +20. 4)
.975 237.5 . 932 303. 6 .935 294.5 .831 289.3 .436 317.1 .635 128.7 .945 111.3 . 980 62. 8 .905 82.1 ( +20. 1)
Long. о
27. 0 19.6 359. 2 346. 2 296. 4 284.4
Lat.
Umbrœ |*ole Spots
FaculíE
о
+27. 7 +17.0 -29. 4 +23. 4 +20. 2 -21.7
(314.8) (+ 2.6)
16.0 +17.0 4. 0 -28. 5 344. 6 +24. 0 330. 1 +17. 6 294. 7 +20. 9
(301.6) ( + 2 . 5 )
1. 1 -29. 6 344.0 +24.1 330.2 +17.3 295. 5 +20. 5 208. 3 -19. 0
3 46
14 255
16 117 38 3
ПО 877 263 13
61 177 192 / 145 с 441 с
162 162 (223) (1532) (1340)
7 22 106 10 26
46 157 702 42 183
196 151 с 513 с 217 с
139 163 (171) (1130) (1379)
29 125 9 28 45
119 845 47 180 333
262 с 383 с
235 с 125 122 ( 287. 3) ( + 2. 3) (236) (1524) (1127)
343.0 +23.6 330.0 +17.2 293. 4 +20. 7 243.0 -21.3 206. 4 -19. 3 197.0 +27.1 (275.0) ( + 2 . 2 )
64 3 21 1 83 59
485 22 124 8 497 401
223 101 353 с 109 с
500 с 304 с 53 (231) (1537) (1643)
A stream forming past the Central Meridian. Tiny spots seen only on November 14 and 17. A pair of small spots. Return of group 17267. A regular spot w i t h a number of small variable companions. Return of group 17266. A pair of regular spots, followed by a few small companions.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 32
P O S I T I O N S AND A R E A S OF SUNSPOTS AND FACULAE FOR EACH DAY IN THE Y E A R
MEASURES U. T.
Group No.
Dlst.
1955 324. 446 G
0
17278 17283 17287 17288 17289
. 883 . 964 . 592 .841 .912 .989
Nov. 21
325. 294 С
17283 17287 17288 17289
.721 .738 . 837 .954 . 974
Nov. 22
326. 454 G
POS
, Angle
237. 8 296. 1 305. 4 114.5 61.0 115.0 ( +19. 8)
298.1 119.1 58. 2 117.3 46. 3 ( +19. 5)
17283 17287 17288 17290 17289 17291
. 854 . 576 . 729 . 868 .859 .941
294. 3 129. 7 52. 8 59. 1 120.9 43.5 (+19.1)
17287 17288 17289 17290 17291
. 971 .923 .472 .613 . 767 . 768 . 888 . 904 .924
289. 2 293.8 141.6 44.4 125. 2 55. 4 39. 8 60. 6 51.6 (+18.8)
Nov. 23
327. 291 С
Nov. 24
328. 600 G 17287 17288 17289 17290 17291
Group Group Group Group Group
.977 . 898 . 808 .372 .470 . 608 .599 .812
293.2 288. 2 294. 1 177.3 21.9 136. 9 43.0 32.6
AREA
POSITION Long.
Lat.
о
о
333. 6 +25. 7 291.3 +21.8 206. 2 -19. 1 196. 7 +27. 1 180. 8 -24. 3 (260.1) (+ 2.1)
291.7 205.9 195. 9 179.6
+21.2 -19.5 +27. 3 -25.2
(248.9) (+ 2.0)
290. 2 +21. 5 205.7 -19.9 193. 0 +27. 5 176.9 +27.4 179. 4 -25. 1 170. 1 +43. 8 (233.7) (+ 1.8)
о1е
Umbree }* Spots
MEASURES
и. т. Faculœ
-20. 0 +27.3 -25.0 +27.0 +44.0
(222.6) ( + 1.7)
0
17
7 73 107 547 609 с 65 401 295 с 13 92 114с (192) ( И З О ) (1525)
3 87 65 21
152 с 268 с 296 с 202 p 161 (176) (1047) (1079) 25 502 399 121
0 74
21 420
86
446
. 819 . 849 . 890 .919 .961 .977
104 403 с
Nov. 25
329. 290 С
17289. Nov. 21-Dec. 2. 17290. Nov. 23 - 30. 1729.1. Nov. 23-Dec. 3. 17292. Nov. 27-Dec.6. 17293. Nov. 28-Dec. 10. until December 5, after Group 17294. Nov. 28-Dec. 10.
-20. 1 +27. 3 -24.8 +27.3 +44. 3
548 414 108 52 48
216с 133с 232s/ 97 121 (203) (1170) (1138)
104 60 11 11 10
593 368 91 69 77
. 924 . 387 . 439 . 530 .518 . 779 . 890 .944 .949
Nov. 26
\ ! 148 с 9 39 16 104 207 с 330.275 С 6 22 181 с (191) (1052) (780)
102 64 18 10 9
17287 17288 17289 17290 17291
244 с
204 /
17287 17288 17290 17289 17291 17292
.831 .491 . 459 .441 . 455 . 709 . 977 .834 .938
Nov. 27
331.088 К 17287 17288 17290 17289 17291 17292 17293 17294
161 112 83 204. 3 194. 1 178.3 178.1 167. 9
Dlst.
1955
164 175 204. 5 193.8 179.0 177.6 170.6
Group No.
Nov. 28
.920 . 899 .612 . 535 .447 .452 . 685 . 930 . 976 .991 . 779 . 906
03
POSITION
f ' Angle
Long.
о
о
46. 6 109. 2 55. 2 120.1 66.8 113.5 (+18.4)
289. 4 196. 6 5. 7 147. 1 33.1 28. 5 67. 0 61.9 113.9 ( +18. 1)
293.0 221.4 340. f, 10.4 167. 8 17. 7 67. 7 59.4 59.8 (+17.8)
291.0 300. 5 232.5 324. 6 349.1 188.9 7. 9 66. 5 68. 1 117.5 57. 1 54. 3 (+17.5)
Lat.
AREA hole
Umbree ^ Faculse Spots
о
67 86 120
(205.4) (+ 1.6)
83 280 110 (196) (1198) (1306)
114 203.0 193. 5 177.9 177.9 165. 1
-20.2 +27. 3 -24.9 +27.0 +44. 3
(196.3) (+ 1.5)
121 71 16 17 29
665 401 91 88 152
(254) (1397)
202 с
148 174 148 (786)
112 203.5 193. 1 178.2 177.2 166. 0 106.4
-20.2 +26. 9 +27.0 -24.9 +43. 6 +22.0
(183.3) (+ 1.4)
103 66 29 18 15 30
630 376 134 80 180 184
(261) (1584)
223 с 132 114 (581)
125 163 203. 7 192. 9 178.0 177.0 165. 1 105. 8 95.8 92. 2
-20. 7 +26. 9 +27.2 -25.1 +43. 9 +22. 2 +21.7 -27. 0
(172.6) ( + 1 . 3 )
79 53 10 12 25
480 271 56 52 103
22
10
27 97
°i 148 ! 477
406с
124 с 73 145 (325) (1687) (1036)
Return of group 17270. A small regular spot. Small variable spots. A stream of small spots In high l a t i t u d e , of which only one remains by November 30. A small spot until December 3. On December 4 and 5 there Is a pair of spots. Return of group 17280. A group of numerous spots f o r m i n g an almost c o n t i n u o u s structure which the whole becomes a normal stream. Return of group 17274. A regular spot, f o l l o w e d by a d i s t a n t companion u n t i l December 7.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 33
P O S I T I O N S AND A R E A S OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR POSITION
MEASURES
и. т.
Group No.
1955 332. 408 G 17287 17288 17290 17289 17291 17292 17293 17294 1367b
Dlst.
. 945 .825 .791 . 699 .576 .551 . 686 .803 . 90 1 .942 .947 .964
Nov. 29
333.671 Mt. W 17287 17288 17290 17289 17291 17292 17293 17294
Nov.
. 947 .837 .925 . 840 .721 .703 .758 . 638 . 787 .820 .837 . 850 . 886 .900
30
334.318 С
17287 17288 17289 17291 17292 17293 17294
. 967 .903 . 777 . 799 . 544 . 695 .740 .821 .945 .949
Dec. 1
335.427 G 17288 17289 17291
. 969 . 904 . 977 .893 .876
Group 17295. Group 17296. there Is Group 17297.
Angle
Long.
Lat.
o
o
o
POS
287. 7 293.0 242.4 309. 5 319.9 216.6 350. 5 62.8 66. 4 119.4 57.8 81.8 (+17.0)
292. 2 232.6 246.8 302. 3 307.9 231.4 334.4 54. 9 61. 5 124.1 47.8 80. 8 54. 9 113.6 (+16.5) 248. 1 299.9 236. 1 328. 8 48. 1 57. 1 127.9 51.5 112.5 125.9 ( +16. 3)
244. 7 304. 3 297. 4 241.5 321.7
Dec. Dec. a big Dec.
203. 5 192.4 179. 7 176.4 164. 1 105.0 92.8 88. 2 86. 7
-20. 7 +27.2 +27. 1 -25.1 +43. 5 +22.1 +21.6 -27. 1 +30. 7
(155.2) (+ 1.1)
203.8 191.3 178. 0 175. 7 165.4 104.3 90. 1 89. 3
-20.9 +27.3 +26. 9 -25. 1 +43.8 +22.3 +22. 6 -26. 6
AREA Umbras
№о1е
Spots
MEASURES Facula
203. 6 191.4 175.2 164. 8 104. 2 90. 9 89. 6
-20. 9 +27.1 -25.0 +43. 6 +22. 0 +22. 8 -26. 2
(130.0) ( + 0 . 9 )
191.7 175.0 164.0
4 - 12. 4 - 16. Increase 4 - 5.
+26.9 -24.8 +43.8
DlSt.
1955
76 49 4 10 И 14 43 117 3
4R6 326 24 37 72 72 246 783 20
106 99 232 с
155с 341 с 258 с 290 с 141 (327) (2066) (1622)
92 65 4 10 6 25 118 173
391 272 16 23 17 89 569 678
436 239 17 11 70 547 562
Пес. 2
336. 280 С
17291 17292 17293 17294
337.403
t;
205 с 125 с Dec. 4
223с 238 121 82 (319) (1882) (1088)
338. 381
331 24 9
.950 .942 .924 .359 .423 .520 .847 .903 .974 .979
Dec. 3
94 с
52 8 0
.408 .530 .596 . 760 .786 .861 . 916 .937
POS
POSITION
Angle
Long.
Lat.
0
0
О
26.0 45.4 139.6 44. 5 118.5 129.7 59. 7 114.9 (+15.9)
104. 3 91.4 90. 0
301.7 239.5 318.4 1.2 27.9 153.5 61.4 120.0 61.2 107.9 (+15.5)
+22. 1 +22.4 -26. 2
AREA Umbrœ
Whole
12 102 89
72 661 499
Spots
Kaculae
92 106 128 113 154 (115.4)
162. 4 103.6 91.8 89. 1
(+0.7)
+43. 9 +21.5 +22.4 -27. 1
(263) (1596) (2100)
0 10 74 83
5 50 548 406
199 148 240 /
98 174 100 151 (104. 1) (+ 0.6)
(167) (1009) (1110)
156с 268 с
229 63 (493) (2055) (1974) 48 41 3 3 14 97 113
17292 17293 17294
85 95 511 с 255 с 160 с
62 90
(138.5) (+ 1.0)
u. т.
Group No.
195 430 286с 165s/ 431 /
17292 17294 17293 17295 17296 17297
G
17292 17294 17293 17295 17296 17297
Dec. 5
.911 .404 .470 .373 .910 .945 . 973 .811 .914
.954 . 846 .822 .540 .501 .431 .797 .875 .917 . 833 .952
319.5 332.3 117.5 6.9 108.9 56.9 63. 1 124.5 70.6 (+15.1)
317.9 294. 3 303.5 311.2 205.1 329.4 112.4 53.9 61.2 67. 9 118.8 (+14.7)
325 100.9 88. 0 86. 5 25.4 21.8 14. 3
+21.3 -27. 4 +22. 1 -16.9 +31.2 +26. 2
( 89. 3) ( + 0. 5)
24 75 94 2
133 323 736 20
30 0
128 19
159 с 230 с 59 с 126 181 (225) ( 1359) (1080) 215 122 104
102.1 90. 1 90. 0 26.0 20.9 12.9
+21.0 -26. 6 +22. 0 -17.5 +31.1 +26.3
( 76. 4) ( + 0. 3)
A pair of spots, of which only one remains by December 11. Return or group 17276. A long stream of small spots u n t i l Пе с ember 10. In area In the rear part, which alone survive;; to the limb. A small spot.
9 49 100 3 21 0
68 279 806 20 168 11
145 с 197 с 211n/ 207 275 (182) (1352) (1476)
On the next day
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 34
POSITIONS AND AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE YEAR POSITION
MEASURES
MEASURES
Group
U. T.
No.
Dlst.
f08,' Angle
Long.
о
о
. 917 . 819 .690 .611 .559 .658 .660 .789 . 920 .951
298. 3 309. 7 301.8 223.8 313.0 116.4 65.0 51.2 122. 1 65.4 (+14.3)
1955 339. 390
F
17292 17294 17293 17295 17298 17296 Dec.
AREA
6
Lat.
Umbrse ^hole Faculï Spots
о
102.1 91.1 89. 4 25.4 24.8 18. 3
+21.4 -25-9 +22. 5 -16.8 +16.3 +29. 7
и. т.
No.
-
1955
9
36
55 160 20 3 30
236 726 98 16 190
17299 17300 17295 17296 17301
178 с
262 с
Dec. 9
(63.2) ( + 0 . 2 )
17294 17293 17295 17298 17296
. 844 .719 . 693 .513 .514 .714 .835 . 895 .940 . 972
Dec. 7
299. 7 232.5 303. 3 124.5 55.8 45.7 125.1 62. 5 122.9 65. 6 (+13.9)
17294 17293 17299 17295 17296 17301
195
90.7 90. 1 25.4 25.3 15. 5
-25.8 +22. 3 -16.7 +16.8 +29. 9
31 53 33 1 38
184 404 160 13 254 166 291 299 219
(51.5) ( + 0 . 1 )
G
17294 17293 17299 17300 17295 17296 1367с
Dec. 8 342. 279 С 17294 17293
Group Group Group Group Group Group Group
. 854 . 823 . 927 .921
17298. 17299. 17300. 17301. 17302. 17303. 17304.
288.8 311.8 240. 1 297. 6 192. 4 194. 3 153.0 30. 4 50. 1 129.0 62. 4 125.6 (+13.4) 307. 5 280. 3 242. 5 295.1
Dec. Dec. Dec. Dec. Dec. Dec. Dec.
о
о
о
218.8 222. 1 190. 5 16.0 139.3 129.9 56. 7 (+13.1)
42. 5 40.8 28.3 15. 9 0. 9
-20. 5 -17.2 -17.0 +28. 9 -25. 7
Umbrae ^°1е Faculte Spots
0 2 11 22 7
3 15 59 151 36 244 259
(25.1) ( - 0 . 2 )
(139)
(948) (1421)
152 142
91.3 89. 8 40.8 40.4 26.9 16. 7 345. 2
-25.4 +22. 9 -21.8 -17.5 -16.9 +29. 1 +32. 8
27 72 1 1 14 40 0
166 521 5 4 67 263 10
378s/ 333с
6 - 7. 8-10. 8-9. 9-14. 11 - 22. 12-13. 12-22.
A A A A A A A
-25. 3 +22. 9
128 244
90. 2 87. 5 41.1 27.4 13.4 2. 2
-25. 7 +23. 2 -21.2 -17.5 +28.8 -24. 7
( 10. 7) ( - 0. 3)
33 17 2 7 33 18 (ПО)
188 122 16 40 268 98
554s/ 331 с
219
(732) (1476)
345. 434 G
17295 17296 17301 17302 17303 17304
(155) (1036) (1746)
28 69
133 551
. 978 . 940 . 567 . 494 .405 . 980 . 882
238. 1 298. 4 239. 3 338. 4 191.0 64. 5 63. 4 (+12.2)
256
65. 6 29.0 10. 2 3. 3 281.5
+26. 4 -17.1 +26. 9 -23. 7 +24.9
0 0 42 13 32
6 13 447 98 226
( 87)
( 790)
165 с
218 с 187
( 358. 5) ( - 0. 4)
( 826)
172s/
160 96
90. 3 89. 8
1368a 17295 17296 17301 17302
Dec. 11
147 280 142
( 35. 8) ( - 0. 1)
278.2 304.0 244. 0 293.8 232.8 222. 9 355.1 162.0 65.9 (+12.6)
(156) (1015) (1170) С
.913 .784 . 861 . 843 . 379 . 310 .329 . 567 . 849 .822 . 897 .899
.941 .919 . 987 .979 .595 . 404 .490 .436 .952
Dec. 10
344. 301 341. 469
Lat.
(277) (1302) (1295) G
С
.449 . 396 . 296 .509 .569 .804 . 852
Se
Long.
300 208
343. 373 340. 279
AREA
Group D1
182 165
POSITION
399s/ 263 с
Dec. 12
. 877 . 873 .742 .603 .815 .915 .968 . 982 . 820
239. 5 248. 9 246.9 318.8 219.8 62.4 55.1 62. 5 62. 8 (+11.7)
107 ПО
28. 9 9. 7 4. 5 280. 5 271.7 266. 3
-17. 3 +26. 4 -23. 8 +24. 8 +33.4 +26. 8
0 80 14 53 0 28
7 547 64 333 8 225
89 P 191 с 77 с 308 с 104
( 343. 5) ( - 0. 6)
small spot. tiny spot on December 8 and 9; a pair on December 10. tiny spot on December 8; a pair on December 9. small spot with a following companion which dies out by December 14. regular spot which begins to break up and die out after December 17. tiny spot. few faint spots, not seen on December 21.
(175) (1184)
(986)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 35
POSITIONS AND AREAS OF SUNSPOTS AND FACULAE FOR EACH DAY IN THE YEAR MEASURES U.T.
Group No.
Dlst.
, °7 Angle о
1955 346. 280 С
17296 17301 17302 17303 17304 17305
. 849 .833 . 819 .707 .635 .833 .917 .937 .978
Dec. 13
347. 558 G
17296 17301 17306 17302 17304 17305
.953 .935 . 847 .814 .551 . 681 . 820 .897 . 848
Dec. 14
290. 9 305.1 247. 3 310.8 231.9 59.2 52.9 60.9 121.8 (+11.3)
250.7 287.5 303. 1 241.4 45.7 50. 8 5бГ5 124.7 46. 1 ( +10. 7)
POSITION Long. 0
Lat.
MEASURES
AREA e
Umbrae ™'°^ Faculœ Spots
79 184 130 9- 1 +26. 8 5. 3 -23. 5 280. 6 +24. 7 271.7 +33.2 266. 1 +26. 8 256. 3 -31. 2 (332.4) (- 0.7)
8.1 6. 5 290.5 280. 1 266. 1 256. 3
+27.0 -23. 4 +21.8 +24. 8 +26. 6 -31. 1
(315.5) ( - 0 . 8 )
17296 17306 17302 17304 17305
. 868 .761 . 924 .452 . 584 .733 . 830 . 810 . 964
Dec. 15
349. 395 G
.959 .924 .917 . 872
239. 3 224.0 300. 2 31.5 42. 6 51.2 127. 9 60. 0 62. 8 (+10.4)
254.1 307.9 235.7 294. 7
9. 8 291.3 280. 3 266. 5 256.3
+27. 3 +21.7 +24. 6 +26. 6 -31.1
(306.0) (- 0.9)
Dlst.
1955
0
82 4 41
157 с 0 10 131 с 21 166 273 с 40 256 308 с (188) (1378) (1262)
100 2 5 53 15 77
17296 17306 17302 17304 17305
618 23 305
630 9 31 289 83 411
142 121 304 с 262s/
Dec.
17306 17302 17304 17305 17307
196 / 276с 102 (252) (1453) (1403)
65 18 27 12 75
339 138 245 119 376
.805 . 796 . 985 .378 . 470 . 582 .713 .906 .938
16
350.281 С
Dec.
348. 281 С
Group No.
и. т.
. 968 . 948 .935 .881 .838 .454 . 436 .501 .619 .986 .818 . 935
17
03
f ,' Angle
Long.
о
о
305.3 229. 4 297. 7 354.4 23. 6 40. 3 135.4 61.5 111.9 (+9.9)
236. 2 299. 7 292.1 234.1 303.0 325.9 0. 1 25.7 145.1 110.6 55.3 64. 5 ( + 9. 5)
AREA
POSITION
9. 3 293. 6 279. 4 266. 8 255.6
Lat.
U LC
Umbra? "" Spots
FaculEE
о
+27. 0 +20. 9 +24. 3 +25. 2 -31.3
(291.3) (- 1.1)
25 73 34 7
245 385 250
246 213 442n/
77
228 / 183 87 (201) (1321) (2298) 62
364
155 130 139 230 190 295. 4 279. 6 265. 8 255.3 199. 8
+20. 8 +24. 5 +25. 6 -31.5 -20. 5
(279.7) (- 1.2)
137 55 3 68 29
680 262 34 341 190
222 с 216 101 (292) (1507) (1383)
230 121 320 с
351.302 С
436 с 133 185 (197) (1217) (1425)
284 168 228 219
17306 17308 17302 17304 17305 17307 17309 Dec.
18
.951 .951 . 880 .904 . 585 .408 .482 . 466 . 539 .927 . 970 . 889
236.8 298.6 302. 8 227.4 309. 6 216.7 335.4 5. 4 161. 3 111.8 108. 0 122. 2 (+9.0)
240 251 130 126 294. 9 281. 2 278. 9 263. 4 254.5 199. 5 190.8
+20. 7 -20. 3 +24. 6 +26. 2 -31.8 -20. 7 -17.8
(266.2) (- 1.3)
136 4 34 0 50 28 0
714 35 193 11 302 137 16
411 с 114 с 153 (252) (1408) (1425)
Group 17306. Dec. 13 - 26. A single elongated spot, slowly dying out as It approaches the limb. Group 17306. Dec. 14 - 22. A stream, developing from a few tiny spots. The leader becomes a regular spot and Is the most stable component. Group 17307. Dec. 17 - 26. Return of group 17287; third appearance. A small regular spot, with a companion on December 20 and 21. Group 17308. Dec. 18 - 21. Two or three small spots. Group 17309. Dec. 18-30. A bl-polar group, In which the leader becomes a double spot and Is the f i r s t to die out. The follower soon becomes regular In outline and survives to the limb.
С 36
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. POSITIONS
MEASURES U. T.
Group No.
Dlst.
1955
17306 17308 17302 17304 17305 17307 17309 17310 Dec. 19
17306 17308 17302 17304 17305 17307 17309 17310 17311
Long.
о
о
. 846 296. 6 .717 242.8 . 719 307. 1 . 589 320. 9 .550 201.5 .697 119.1 .756 111.5 .882 55.7 .942 65.5 .940 117.4 ( +8. 1)
Dec. 20
POSITION
Angle
.965 303.5 .954 230.3 .751 300.8 . 583 236. 1 .616 315.8 .498 337.9 .508 184.9 .808 114.3 . 857 109. 4 . 947 59. 1 . 960 65. 9 ( +8. 5)
352.473 G
353.331 С
POS
AND A R E A S OF SUNSPOTS AND FACULTE
Lat.
(250.8) (- 1.5)
293. 6 282. 2 278. 4 263. 7 253.2 198.9 192.3 183. 4 171.7
AREA
MEASURES
016
Umbree ^j" Faculœ Spots
о
294.5 +21.5 281. 7 -20. 2 278. 9 +24. 8 262. 8 +25. 9 253.7 -31.8 199. 3 -20. 3 193.2 -17.3 183. 4 +28. 5
+21. 3 -20. 3 +24. 4 +25. 6 -32.2 -21.0 -17.1 +28. 9 +22.4
(239.5) (- 1.6)
FOR EACH DAY IN THE Y E A R
и. т.
Group No.
1955
126
650
16 15 2 48 36 22 0
73 142 28 260 144 122 6
130 141 190 с
192 / 161 с 169 с 134 (265) (1425) (1117)
86 9 12 0 30
607 38 84 4 222
31
137
212 с
355.295 С
17302 17306 17304 17305 17307 17309 17312 17313
Dec. 22
356. 536 G
17305 17307 17309 17312 173П 17313
{ 1 913 9 3с С 315* 10 114 с 28 348 с 151 (229) (1445) (1018) 59 2 0
17306 17308 17302 17305 1368b 17307 17309 17312 17311 17313
Dec. 21
Group Group Group Group Group
. 938 293. 6 . 848 246. 9 .832 301.4 .631 215.7 .545 358.0 . 548 126. 0 .605 116.6 . 736 57. 0 . 896 62. 2 . 981 54. 5 .891 121.6 .902 51.8 ( +7. 6)
294.2 +21.4 283. 1 -20. 4 278. 1 +24. 5 252. 7 -32. 2 228. 3 +31. 1 198. 9 -20. 2 192. 7 -17. 1 185. 3 +22. 3 167. 1 +23. 8 152.0 +34.3 (227.0) (- 1.7)
17310. Dec. 19 - 20. 17311. Dec. 20 - 26. 17312. Dec. 21 - 23. 17313. Dec. 21 - 26. 17314. Dec. 24- 1956 Jan. 2. before reaching the limb.
77 2 9 32 2 18 103 6 0 5
557 10 64 225 9 126 530 31 21 29
347 с 101 с 146 /
319с 175 с 136 115 (254) (1602) (1339)
357. 395 G
Dec. 24
Pos
/
Angle 0
Dec. 23 354. 282 С
Dl s t.
17305 17307 17309 17311 17313 17314
. 934 247. 8 . 928 297. 2 . 974 294. 6 .849 303.0 .737 225.2 .401 142.1 .446 127.2 .551 45.2 .913 52.2 . 822 58. 2 ( +7. 2)
.987 .955 . 869 .859 .310 .267 .425 . 627 .819 .918 . 928 .942
290.6 298.8 298. 2 232.7 183.2 160.5 19.9 48. 2 45.1 112.6 63. 2 43.4 ( +6. 6)
. 956 295. 7 .928 235.5 .369 212.6 . 269 199. 4 .513 34.4 . 690 35. 6 . 794 62. 2 .843 113.6 .874 44.0 .921 60.0 ( +6. 2)
AREA
POSITION Long.
0
Lat.
lole
Umbras ™ paculœ Spots
0
144 278. 3 +24. 3 288. 3 +23. 5 266. 0 +26. 4 251.8 -32.6 198. 5 -20. 1 191.9 -17.2 188.9 +21.2 154.5 +33.0
(213.6) (- 1.8)
251.1 198.3 191.9 188.3 166. 8 153.1
-32.5 -19.9 -16.5 +21.5 +22. 9 +33.8
( 197. 2) ( - 2. 0)
250. 9 198. 2 191.3 167.7 157.8 137. 7
-32. 5 -20. 1 -16.7 +23.0 +32.1 +20. 3
(186.0) ( - 2 . 1 )
° 0 0 44 16 102 4 7
H
{ 113! 18 232 106 563 23 41
422C
128 с 79 с
217/ 318 (173) (1107) (1308)
44 7 97 1 5 8
(162)
29 5 68 2 9 6
(119)
168 64 463 7 34 46
145 294 104 511 с
152 с 121 196 206 (782) (1729)
130 47 406 40 30 18
181 558s/
65 с 90 93 137 (671) (1124)
Return of group 17288; third appearance. A tiny spot. A wide pair of spots, not seen on December 22. One or two tiny spots. One or two small variable spots. Tiny spots, which by December 30 have become a pair of regular spots and which die out
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 37
POSITIONS AND AREAS OF SUNSPOTS AND FACULJE TOR EACH DAY IN THE YEAR MEASURES
No.
Dlst.
358. 391
G 17305 17307 17309 17311 17313 17314 17315
. 889 .875 .979 . 505 .390 . 404 .603 . 680 . 993 .819 .851 .906
25
359. 340
С 17309 17311 17313 17314 17315 17316
.964 . 953 . 932 .545 .459 . 569 .545 .951 .967 . 894 . 896
26
360. 290
С 17309 17317 17314 17315 17316
Dec.
Hos>
Angle о
1955
Dec.
AREA
MEASURES
Group
U.T.
Dec.
POSITION
. 864 . 838 . 696 . 484 .439 .867 .901 .946
27
307. 9 299.7 237.3 232. 1 230.4 2. 6 20.9 57. 1 67. 6 54.1 31.1 40.3 ( +5. 7)
233.4 296. 8 306. 4 242.0 334.9 3. 2 43.4 65.6 116.0 59. 2 34. 0 ( +5. 2)
245. 4 235. 2 247. 2 334. 6 24.3 61.6 116.2 121.8 ( +4. 8)
Long.
о
Lat.
UAK
Umbra: "" Spots
Faculse
о
и. т.
-32.4 -20.0 -16.4 +21.5 +32.0 +19.9 +21.9
No.
Angle о
1955
5 4 47 4 3 3 8
31 19 311 51 14 18 98
498s/
.930 . 942 Dec.
28
362. 424
С 642 p
17309 17317 17314 17315 17316 17318
110 121 174 (172.8) ( - 2 . 2 )
(74)
(542) (1844)
213 137 114 190.3 172. 4 158.2 136.7 91.1 85. 9
-16.8 +22. 2 +32.1 +21.1 +22.3 -25. 7
45 2 2 8 13 8
252 11 12 38 77 37
( 160. 3) ( - 2. 3)
(78)
363. 289
С 445 с 201 с 17309 17317 17314 17315 17316 17318
( 4 2 7 ) (1385)
176 105 189.9 160. 8 136.7 92.1 85.4
-17.4 +23. 5 +21.1 +23.0 -24.5
42 5 13 17 5
223 15 46 146 38
632 с 123с
Dec.
С 17309 17317 17314 17315 17316 17318
.912 . 842 .814 . 597 .404 .747 .801 .990 . 851 .926
246.5 238. 0 249.9 317. 7 355.4 55.5 119.1 112.5 126. 5 51.1
.968 .965 . 919 .837 . 983 .851 .591 .515 . 526 .862 . 768 .835 . 922 .960
30
122.9 60. 8 ( +4. 3) 291.8 241.0 303.6 298.8 252.0 306. 1 328.4 43.6 125.9 113.9 125.7 44.2 55.8 130.8 (+3.8) 241.3 301.9 294. 3 314.3 252. 6 301.9 315.1 31.0 135. 3 115.9 38. 9 48.9 126. 9 71.1 ( +3. 3)
Long.
0
Lat.
Umbrae ™ : Spots
Faculae
0
310 369 (134.8) ( - 2 . 5 )
(124)
(707) (2044)
115 274 201 109 187.2 161. 1 135.8 92. 9 84. 9 51.4
-17.7 +24. 1 +22.1 +23. 3 -24. 3 -23.3
33 11 1 34 5 30
147 47 57 189 14 151
239 с 103 P 273 с
155 125 497 182 (119.7) (- 2.7)
(120)
(605) (2273)
131 158 179 95 187.8 161.0 135.0 91.6 84. 4 50.7
-17.6 +25.0 +22.2 +23.4 -24. 5 -23.6
21 4 19 27 5 29
101 12 99 166 17 143
193 с 157 с
232 с
90 160 120 183 ( 108. 3) ( - 2. 8)
(105)
(538) (1698)
397 (147.8) (- 2.4)
( 82)
( 468) ( 1433)
364. 278
С 361. 277
.958 .941 .922 .851 .927 . 749 .493 .602 .644 .935 .805 .857 .864 .918
Dec, 29
181 94
AREA
Group
141 158 250.0 197.8 191.0 171.7 158.2 135.6 91.4
POSITION
17314 17315 17316 17318
223 196 188.0 160. 8 136.8 92. 9 84. 8 52. 9
-17.7 +23. 9 +21.2 +23. 1 -24. 5 -22. 6
27 18 9 53 3 14
181 88 45 308 27 58
204 с
276 с 89 / 123с
139 115
Dec.
31
.933 .916 .859 .729 .451 .411 .750 .758 .909 .910 .934 .955
298.6 308.9 317.4 305.0 8.0 154.2 119.8 41.4 70.0 106.6 119.7 60.7 (+2.8)
223 134 85 135.4 91.4 84. 0 50. 1
+22.4 +23.5 -24. 5 -23. 9
39 30 1 39
182 165 6 219
110с
220 с
140 174 130 138 173 ( 95. 3) ( - 2. 9)
(109)
(572) (1527)
Group 17315. Dec. 25- 1956 Jan. 6. Return оГ group 17293; third appearance. A compact group ot small spots which develops Into a stream by January 1 and Is dying out as It approaches the limb. Group 17316. Dec. 26-1956 Jan. 2. Return оГ group 17294; third appearance. A small spot. Group 17317. Dec. 2 7 - 3 0 . A rew small spots. Group 17318. Dec. 28- 1956 Jan. 8. A small stream, led by a regular spot, which dies out b e f o r e reaching the limb.
Blank page retained for pagination
ROYAL GREENWICH OBSERVATORY
General Catalogue of Groups of Sunspots For the year 1955
G R E E N W I C H PHOTO-HELIOGRAPHIC RESULTS, 1955
GENERAL CATALOGUE OP GROUPS OP SUNSPOTS POR THE YEAR 1955.
Groups of s u n s p o t s , l a s t i n g for two or more d a y s , are n u m b e r e d in the f i r s t column in continuation of the group-numbers given in 1954 and the previous years. Groups seen only once are not included in this catalogue but are given with a distinctive numeration in a following table on p. С 45.
The second column gives the corresponding Mount W i l s o n group number, as i d e n t i f i e d from the bi-monthly summaries of the Mount W i l s o n magnetic observations of sunspots p u b l i s h e d in P u b l i c a t i o n s of the A s t r o n o m i c a l S o c i e t y of the P a c i f i c .
The third column gives the U.T. of the central meridian passage of each group as deduced from its mean longitude (given in the e l e v e n t h column). For those groups which are in existence at the time of the central meridian passage of their longitude, the time is given to OrOl, corresponding to 0.13 of solar longitude. In other cases, in which groups disappear before or appear after the central meridian, the deduced time is given to 0.1.
The fourth column gives which are not seen upon the are indicated by a fraction, are actually observed, the of observation.
the duration of each group in days. Intermittent groups, i . e . , groups photographs of every day between their f i r s t and last appearances, the numerator of which represents the number of days on which they denominator being the number of days covering the extreme limits
The s i x t h and e i g h t h columns, headed "Longitude from central meridian", give, for the days on which each group was f i r s t and l a s t seen r e s p e c t i v e l y , the h e l i o g r a p h i c l o n g i t u d e f r o m the meridian passing through the centre of the Sun's disk at the time of observation, longitudes west of the centre being reckoned as positive.
The mean areas for umbrae and whole spots entered in the n i n t h and t e n t h columns are corrected for the e f f e c t of foreshortening and are expressed in millionths of the Sun's v i s i b l e hemisphere.
The e l e v e n t h and t w e l f t h columns give the mean heliographic position of the group in longitude and latitude respectively.
The t h i r t e e n t h column gives reference to all groups contained in L e d g e r I and Ledger II; for a group in Ledger I both its recurrent series number and its order in the series are also given.
W i t h r e f e r e n c e to the i d e n t i f i c a t i o n both of recurrent and revival groups, it should be noted that longitudes are based on the ephemeris given in the H a u t i c a l A l m a n a c , assuming a solar rotation period constant at all latitudes. After an interval of one rotation, recurring groups w i l l , t h e r e f o r e , show in general - apart f r o m any proper motion they may have of their own apparent d r i f t s in longitude v a r y i n g in amount according to their respective latitudes. The following table, derived from the f o r m u l a Ë, = 14°37 - 2?60 sin 2 Ф, gives the apparent d r i f t in longitude appropriate to d i f f e r e n t l a t i t u d e s a f t e r an i n t e r v a l of 27 days, a d r i f t f o r w a r d s corresponding to an increase in heliographic longitude.
Latitude
Drift
Latitude
forwards. 0° 5° 10° 15°
.. .. .. ..
..5° ..4.5 .. 3 ..0.5
Drift
backwards. 20° .. 25° .. 30° .. 35° ..
..3° ..7.5 ..12.5 ..18
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 41
GENERAL CATALOGUE OF SUNSPOTS
No. of Group
F i r s t Seen
и. т. or
Ht. W
G
Central Meridian Passage
Duration in Days
1955
17158 59
11215
17160 61 62 63 64
11217
17165 66 67 68 69
11223
17170 71 72 73 74
11228
17175 76
11233
24 25 27 26
..
30 31 32
77 78 79
34 35 36 38
17180
11239
81
82 83 !
42
17185
11243
86 87 88 89
44 45 46 49
17190
11250
91 92 93 94
51 53 52 54
17195 96 97 98 99
Date
Long, from Central Meridian
1955 Jan. 14 7
о +82 +21
78 9
423 47
127.3 161.4
9 19 26 29 Feb. 7
+31 +74 + 4 +63 +77
3 109 3 16 46
14 660 17 85 248
143.1 -33.6 60.7 +35.6 253.6 -23.8 270.6 +29.4 169.6 - 2 2 . 7
Longltude
0
Latitude
Re T e r e n c e to Ledger
0
I 1663 ( 1)
6 7 20
- 8 -74 -75
13
23 26
-23 -78
25. 7 4.91 31. 1 6. 99 11.95
3 8 4 9 11
+48 -70 +28 -34 -68
Jan. Feb.
Feb.
29 30 2 4 6
31 6 5 12 16
+75 +19 +72 +74 +55
5 10 34 8 21
20 59 227 50 131
257.6 -21.4 123.7 +20.3 187.2 +19.0 96. 3 +26. 5 30.9 +37.7
8.0 18.3 27. 13 Mar. 1.09 5. 2
2 2 11 13 3
12 16 21 23 Mar. 8
+59 -25 -77 -75 +42
13 17 Mar. 3 7 10
+70 -11 +59 +80 +67
2 4 36 22 3
19 16 212 124 24
82. 6 +35. 6 307.6 - 2.0 191.0 +18.8 165.3 - 2 2 . 2 110.9 +36.7
27. 1 4.1 2.9 3. 6 5.95
3/4 5 3 6
+30 -76 +5 +10 - 8
Apr.
7
29 29 Apr. 3 4 5
1 2 5 9 11
+70 -23 +34 +72 +68
0 9 4 20 16
15 44 15 119 87
182.3 +35.3 76.4 - 2 5 . 2 93.0 +26.3 83.3 +24.9 52.5 +20.9
II II
5.9 15.94 21.8 22. 58 2.73
2 3 4/7 4/8 11
8 15 15 17 27
+31 - 7 -82 -70 -67
9 17 21 24 7
+46 +20 - 7 +22 +59
1 5 1 0 11
5 22 8 6 108
52.8 -19.7 280.6 - 2 2 . 0 203.1 -24.6 192.9 -27.6 58. 8 +34. 1
II II II
28 3 4 16 17
-71 -77 +34 -65 - 4
5 12 5 27 21
+21 +35 +48 +79 +43
11 18 6 69 3
50 107 18 378 23
45.4 +17.8 331.2 -33.1 7 2 . 2 -33.6 172. 1 +24. 7 218.3 +22.0
II II
18 21 24 25 28
-81 -68 -60 -39 -31
30 22 June 4 May 26 June 2
+65 -54 +78 -26 +34
21 2 27 0 3
123 14 144 6 22
126.0 +24.9 105.4 - 2 6 . 4 68.3 +30.4 81. 2 - 3.0 50.2 +25.0
II
31 4 10 10 11
-79 -55 -69 -80 -18
2 14 15 22 12
-54 +62 -10 +74 - 3
0 16 0 65 6
12 93 10 381 33
320.9 -35.6 290.0 +32.0 193.2 +45.0 185.3 - 2 4 . 0 2 3 7 . 2 -25.0
8. 30 5.70
Feb. Jan. Feb. Jan. Feb.
Apr.
May
June 11256} 58 59 pt. 60
°
1955
Mean P o s i t i o n of Group
-57 - 6
40 41
84
Date
Mean Area Corrected for Foreshortening
4 5
Jan.
16
18 19 20 21
Long, from Central Meridian
L a s t Seen
7.09 13. 35 26. 04 24. 75 1.42
11 3
Jan.
4 13 6/7 7
3.75 9. 35 1. 7 21. 38 17.90
8 8/10 2 12 5
24.87 26.4 29. 23 28. 3 30. 61
13 2 12 2 6
6. 3 8. 68 16.0 16. 59 12. 7
3 10/11 5/6 13 2
May
June
May
+20.0 -25.8
I 1661 (2) I 1662 II
(2)
I 1664 (1)
I 1663 (2) I 1665 ( 1) II I 1661 (3)
I 1665 (2) I 1664 (2)
I 1666 ( 1)
II II
II II II
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 42
GENERAL CATALOGUE OF SUNSPOTS First Seen
No. of Group
и. т. or
Ht. W
G
17200 01 02 03 04
11259 pt. 61 62 66 67
17205 Об 07 08 09
11268 69
Central Meridian Passage
1955 June 17. 23 17. 3 22.05 July 4. 94 6.70 6.6
Duration in Days
Long. „rromn Central Meridian
Date
Long. from „ , Central Meridian
о -77 -79
1955 June 23
о +78
16 28 30
-76 -81 -82
22 July 10 11
1 4 6
-67 -80 -75
Date
1955 June 11 13 6 11 7
13 12
July
Last Seen
16
Mean Area Corrected for Foreshortening
ишъгае ^ole Spots
Mean Position of Group
Longltude
Latitude
0
0
522 57 32 222 193
176.9 175.6 113.0 302. 5 279.2
-21.5 +23.1 +.20.0 -32. 4 +31.9
II
+3 +68 +56
78 8 6 34 37
-4 +44 +44 -22 -35
4 6 2 4 0
15 56 11 17 6
280.3 224.2 209.5 196.9 171.4
+17.2 +26.0 +24.6 +29.6 -26.0
II II II
177.4 177.4 136.7
-22.6 +28.0 -25.6
166.2 170.4
+18.2 -21.4
+29.5 +21.8 -35.3 -32.2 +32.0
-17
10.85
6 11
71 72 73 pt.
11.96 12.9 14.8
5/10 3 2/4
9 9
-46 -71
6 14 15 11 12
17210 11 12 13 14
11273 Pt.
14.4 14.39 17.46 15.2 14.9
3/5 4 7/9 2 2
10 12 14 19 19
-54 -28 -43 +58 +63
14 15 22 20 20
- 2 +14 +69 +69 +72
2 9 8 8 34
17215 16
11281 86 87 88 89
16.8 Aug. 1.72 July 29. 5 Aug. 1.05 9. 11
3/4 10 2 4 11
19 26
+38 -81
5 94
-27 -8
+72 +36 -16
1 15
27 31
22 Aug. 4 July 28
Aug. 4
-58
3 14
+31 +64
0 4 10
7 24 44
145.0 294.8 338.1 303.7 197.2
12
5 5 9 13 16
-73 -74 -69 -8 -20
16 17 18 15 23
+77 +79 +56 +15 +75
68 114 12 2 18
358 680 62 11 106
177.6 172.4 127.7 130.9 83.1
+15.8 -22.0 +22.3 -27.4 +20.3
21 24 26 27 27
-29 -44 -36 -47 -70
3 26 7
13 137 36
-27.4 +43.0 +19.8 +28.9 -18.8
29 31 31 31 Sept. 1
-78 -65 -80 -87 -74
2 3
-68 -81
4 4 5
+23 -36 -33
17 18
19
74
77 ) 82 5 80 78
17220 21 22 23 24
11290
91 92 93 94
10.59 10.98 14. 36 14. 12 17.74
17225 26 27 28 29
11295 96 97 99 98
23.65 27.89 29.04 30.9 Sept. 1.27
17230 31 32 33 34
11300
4.3 5.7 6.81 7.50 6.95
15 9
17235 36 37 38 39
11305 06 07
7.57
6/7
9.68 2. 5
9 5 3 3
01 02 pt. 03 pt. 04
02 pt.
7.0
03 Pt.
8. 1
13 8/10 3 8 4
10 8
4 10 7 5 11
Aug.
Reference to Ledger
.
19 36 . 36 33 141
I 1666 (2) II II II
II I 1667 ( 1)
II II I 1668 (1) I 1667 (2) II II
24
+7
Sept. 2
+68
2 Aug. 30
+60 -7
2
12
Sept. 5
+58
12
57
5.0 309.0 293.8 269.4 251.0
114 67 40 328 96
211.0 193.1 178,0 168.8 176.1
+25.5 +30.7 +18.1 +26.9 -20.9
II
167.9 140.0 235.3 175.9 160.5
+17.5 +27.5 -22.1 +21.4 +25.9
II II
4
-1
4 10 14 9
-19 +45 +86 +31
20 12 10 65 15
8 11 8 6 7
+9 +21 +74 -8 -11
7
47
24 60 0 1
133 333 8 13
II II II
I 1668 (2) I 1669 (1) I 1667 (3)
I 1670 (1)
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 43
GENERAL CATALOGUE OF SUNSPOTS
No. of Group
G
17240
41 42
43 44
Mt. W
11308 09 12 14 15
First Seen
U. T. of Central Meridian Passage
1955 Sept. 10. 90 10.21 15.03 12. 1 14.9
Last Seen
Dura—
t Ion in Days
Long.
Long.
from
Date
„rrom, Central Meridian
Date Date
1955 Sept. 5 7 11 12 15
° -64 -36 -50 + 1 +7
1955 Sept. 14 11 20 17
о +41 +14 +71 +72
20
18
+18
4/6
20 23 24 25
+66 -76 + 3 -63
3 11 4 14 14
27
+54
30 30 30 Oct. 1
10
5 10
3/6
6
Mean Area Corrected for Foreshortening
Umbrae
Central Meridian
Whole Spots
+72
19 21 29 25 30
+32 +84 -4 +21 - 3
3 0 16 5 2
15 12 103 20 16
44.4 65.5 238.0 309.9 225.4
-22.0 +32. 1 -23.4 -28.8 +19.7
29 Oct. 10 3 13 14
+76 +70 -30 +83 +84
4
21
-65 -69 -86 -85
12
62
7 89 15
25 428 84
319.5 165.2 158.5 138.9 129.1
+35.4 +29.2 -22.4 +22.0 +22.2
2 2 4 6 7
-29 -82 -70 -38 +50
6 9 6 14 9
+23 +6 -45 +65 +73
2 3 5 14 8
11 14 30 65 32
+27 +10
66 26 19 10 189
17255 56 57 58 59
11333 34 35 36 37
4.47 8.74 9.7 9.20 3.7
17260 61 62 63 64
11339 40 41 46 49
13. 29 13.80 5.9 9.2 25.38
8/9 7 3 2 12
7 8
-77 -69
15 14
9 12 19
+46 +43 -75
11
+72
13 30
+56 +63
13 7 3 2 38
17265 66 67 68 69
11351 52 Й1 55 54
26. 75 29.07 28.89 26.0 29.93
9 14 13 2 13
20 22 23 24 24
-84 -86 -75 -22 -76
29 4 4 Oct. 25 Nov. 5
+34 +79 +84 -8 +78
10 57 140 2 52
52 286 751 15 276
17270 71 72 73 74
11356 57 58 61
13
24 26
-78 -13
28 31
-82 +47
1
-75
5 1 9 2 13
+75 +62 +73 +74 +79
80 7 32 15 19
422 38 182 81 90
17275 76 77 78 79
113
5 5
-58 -82
12
+37
17
+72
7
-77
8 9
-79 -55
19 21 13
+74 +74 - 7
18 20 70 138 8
93 101 420 1026 42
30
29 31 32
62
«j ó4 65 W 69
23.4 Oct. 5.05 5.6 7.04 7.78
30.53 27.64 Nov. 3.74 Oct. 27.8 Nov. 7. 19
9.48 11.79 13.78 14.92 13.6
5 6/8
3 9 3
6/7
13 3 13
8 13 13 14 5
Nov.
о
-26.0 -40.1 +21.9 +29.4 -24.8
11326
7 2
о
123.9 133.1 69.4 108.2 71.7
17250 51 52 53 54
2 2
Latitude
41 31 92 6 70
11319
16.9 15.3 29.5 24. 1 30.5
Longltude
8 6 18 0 16
17245 46 47 48 49
17 22 24 25
Mean Position of Group
Nov.
172.8 +15.7 116.5 +21.4 104. 3 +20. 1 110.4 +29.3 183.2 +26.7
Reference to Ledger
II II II II
I 1670 (2)
II
I 1669 (2) I 1671 (1)
II
II II
II II
56.4 49. 7 154.0 110.6
-18.8 -24. 1 -22.1 -26.6
257.0
+18.8
II
238.9
+23.8
II
208.3
+27.5
210.7 248.7 196.9
-21.8 +9.4 +29.0
189.0
-23.8
227. 2
+27. 7
I 1672 ( 1) I 1673 (1)
II I 1674 (1)
II
133.5
+21.6
I 1671 (2)
225.5 88.0
+14.0 -27.5
I 1675 (1)
57.9
-17.4
27.4
+28.2
1.1 346.1 3.3
-29.4 +24.0 -41.9
II I 1676 ( 1)
II II
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 44
GENERAL
No. of Group
Ht. W
G
17280 81 82 83 84
17285 86
87 88 89
17290 91 92 93 94
11368 70 73 75 74
11376 78
m 8l
11383 82 86 88 87
17295
11390
96 97 98 99
92 93 ..
95
17300
11396
01 02 03 04
97
98 pt. 401
398 pt.
17305
11402
06 07 08 09
00 07 06 08
17310 11 12 13 14
11409 10 12 13 15
17315
11416
16
17 18 20
17
18
CATALOGUE OF SUNSPOTS
First Seen U. T. of Central Meridian Passage
1955-56 6. 7 10.5 16.9 18.89 12.4
Nov.
Duration In Days
3 2 2 12 5
Last Seen
Mean Area Corrected f o r Foreshortening
Mean P o s i t i o n or Group
Date
Long. „f r o l n , Central Meridian
Date
Long. „f r o m , Central Meridian
1955 Nov. 10 10 12 12 14
о +47 +1 -60 -83 +27
1955-56 Nov. 12 11 13 23 18
о +77 +12 -47 +56 +74
7 1 2 31 . 46
58 16 12 224 238
94.8 +22.8 45.0 +26.6 320.3 -27.0 293.8 +21.0 19.4 + 1 7 . 3
-68 +28 -79 -78 -79
17 20 Dec. 1 2 2
-30 +55 +74 +76 +60
1 7 86 61 13
5 37 502 357 70
284.4 -21.2 330.1 +17.4 204.8 -20.0 193.6 +27.2 177.6 -24.9
Umbrœ
fole Spots
Longltude
Latitude
0
О
Reference to Ledger
I 1677 ( 1) II
19.6 16. 1 25.64 26. 49 27.71
2/4 3
13 13 12
14 18 19 20 21
27.67 28.59 Dec. 3. 30 4. 30 4.37
8 11 10 13 13
23 23 27 28 28
-57 -64 -77 -77 -80
Nov. 30 Dec. 3 6 10 10
+40 +58 +39 +77 +80
12 10 17 84 73
60 63 87 539 370
178.0 + 2 7 . 1 166.0 +43.9 103.9 + 2 1 . 8 90. 7 +22. 4 89. 8 -26. 3
II II II
9. 14 10. 14 10. 2
9 13 2 2 3
Dec. 4 4 4 6 8
-64 -68 -75 -38 +5
12 16 5 7 10
+45 +78 -64 -26 +30
10 47 0 2 1
54 327 15 15 8
27.0 -17.1 13.8 +28.5 13.6 +26.2 25.0 +16.6 4 1 . 5 -21.2
II
2 6 12 2
+5 -24 -77 -72 -77
9 14 22 13 22
+16 +51 +65 -61 +52
2 10 30 0 8
10 55 200 9 69
40.6 -17.4 3.8 - 2 4 . 1 279.6 +24.6 271.7 +33.3 265.4 +26.2
9.3 8.4
8. 1 10.90 17. 29 17.9 18. 37
10/11
8 9 11 12 12
19. 26 16.23 23.42 17. 1 24.04
13 9 9 4 13
13 14 17 18 18
-76 -25 -80 +15 -75
25 22 25 21 30
+77 +75 +25 +56 +80
46 82 19 8 51
255 470 108 39 280
253.7 -31.9 293.5 + 2 1 . 3 198. 8 -20. 3 282.0 -20.3 190.6 -17.2
24.6 25.67 24.3 26.7 28. 17
2 6/7 3 6 10
19 20 21 21 24
-67 -68 -42 -75 -48
20 26 23 26 Jan. 2
-56 +12 - 9 - 2 +70
1 2 4 6 14
8 26 20 29 67
183.4 +28.7 169.1 +22.7 187.5 + 2 1 . 7 155.6 +32.9 136.3 + 2 1 . 3
31. 58 Jan. 1. 10 Dec. 26. 3 Jan. 3. 64
13 8 4 12
25 26 27 28
-81 -74 +13 -82
6 2 Dec. 30 Jan. 8
+78 +16 +53 +64
29 3 10 17
174 19 40 93
91. 3 +23. 8 84.5 -24.7 160.9 + 2 4 . 1 51.0 - 2 3 . 3
I 1673 (2) I 1672 (2) I 1674 (2)
I 1677 (2) I 1675 (2)
I 1676 (2)
II II II
II
I 1678 ( 1) I 1673 (3) II
I 1672 (3)
II II II
I 1677 (3) I 1675 (3) II
GREENWICH PHOTO-HELIOGRAPHIC RESULTS. 1955.
С 45
GENERAL CATALOGUE OK SUNSPOTS SUNSPOTS SEEN ON ONE DAY ONLY The groups of sunspots tabulated below were seen on one day only and appear in the Daily Results with a distinctive numeration, comprising the number of the rotation during which each was observed and a letter given in order of appearance. These short-lived groups are usually composed of one or two very small spots. The deduced time of central meridian passage of each spot is given in the fourth column of the table.
No. of Group
1355a 1356a h с
1358a 1359a
Longitude from Central Meridian
Date
1955 Jan. 6
- 0.5
U.T. of Central Meridian Passage
Area Corrected Tor Foreshortening Umbras
1955 Jnn. 6. 4
Whole Spots
Position or Group
No. о Г Group Longitude
12
-31.0
152.6 232.3 160. 1 8.0
+32.2 -32.1 +36. 0
Apr.
+49. 6
liter. 29.6
7
149.5
+26. 2
1365a
+41.6
Apr. 18.2
11
251.2
-23.3
7 17 29
+54.2 + 4.4 -31. 1
May
3.2 17.1 31.7
0 1 1
5 3 9
52.3 228.4 35.6
+26. 3 +31.7 -31.1
1361a b
June 18 20
+79.2 +61. 3
June 12.3 15.7
16 0
50 4
242.2 197.0
-25.1 +19.3
1362a
July 7 14 19 20 22 25
+25.3 -45. 6 +68. 5 +30. 4 -44.2 +66. 9
July
0 4 3 0 0 8
6 10 11 15 8 30
296. 4 132.9 176. 1 128.8 98.3
+29.0 +20.4 -14.8 +23.0 -27.0 -26.0
Aug.
-17.7
Aug.
15
190. 1
+21.3
b c J e f
1363a
U 12 12 15
14 4 36
Ь с
1360a
Sept. 9
Jan. 27. 7 Feh. 2. l 13.7
May
8
Greenwich Number
5.4 17.8 14.5 18.1 25.7 20.4
Mt. Wilson Number
1355a 1356a h
11222
с
11229
9.6
é
Umbrae
Whole Spots
Longltude
Latitude
0 1 0 0 0
9 11 2 9 3
221.1 133.3 67.4 52.0 56.0
+19.4
30.3 Oft. 10.4 12.7 12.6 16. 6 18.1
0 2 2 2 2 0 0
10 7 7 14 15
Sept. 3.5
+63. 2 +13.6 -39.8 -43. 6 -30.4 -56. 4 -49.8
Sept.19. 5
10.2 15.2 16.3 16.0
9.9 228.0
+20.9
-27.3 -24.5 +26.5
+26. 3 -14.6 -25.9 -28.3 +21. 8 +26. 6 -22.6
7
95.0 63.8 64.9 12.2
4
352.4
0 3 2 1 1
4 23 13 9 11
227.8
175.4 154.9 15.6 54.5
-24.7
+33.9
Oct. 27.6 31.6 Nov. 2. 1 12.7 9.7
1367a b c
Nov. 20 29
Nov. 22.7 Dec. 4.6 12.3
1 3 0
8
243.0
-21.3
20 10
86.7
8
-32.0 -68. 5 -50. 6
345.2
+30.7 +32.8
1368a b
Dec. 11 21
+67. 1 + 1.3
Dec.
0 2
6 9
65. 6
+26.4
228.3
+31.1
Dec.
1364a
1363a
+76. 1 +15.7 -37. 6 -53.0 - 9.4
- 2.3 -42.2 -23.2 -43.8
11263 11265
1360a
Position or Group
Oct. 27 28 31 Nov. 9 12
1366a b c
1361a b
1359a
11247
7
Greenwich Number
11270 76 79 83 84 85
I 9 10 12 14
Mt. Wilson Number
b c d e f
b c
Oct.
Greenwich Number
1362a
1358a
27.8
Sept.24
b с J e f
Area Corrected Tor Foreshortening
1955
1364a
- 2.0 ~62. 1 - 3.9
21
U.T. or Central Meridian Passage
1955
Jan. 27 28 Feb. 13
Apr.
Date
Latitude
b с J с
2
Longitude rrom Central Meridian
b c d e
1365a b c
ú e f /í
Mt. Wilson Number
6.2 21.2
Greenwich Number
Mt. Wilson Number
l?66n
11311 11316 11323 28 43 45 42 47 48
b c ú o 1367a
b c 1368a b
11360 11372 11377 89 11399 411
+22.5 +27.4
+18.8 +22.5
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 46
REVIVAL GROUPS OF SUNSPOTS
Groups of spots occupying the same heliographic position in consecutive disk passages (partial or complete) but with definite breaks in their history are termed 'Revivals'. Such groups have been abstracted from the preceding catalogue and are grouped in series in the following table. When a 'Recurrent' series i.e. Ledger I forms part of a 'Revival' series, a reference is given in the last column of the table. Groups that are given in detail in Ledger II are also indicated. First Seen
No.
1
No. of Group
17179
85 2
и. т. or
Central Meridian Passage
1955 Apr. 5.95 May 3. 75
Rotation
Duration in Days
June
17196 204
June July
8. 68 6. 70
1361 1362
10/11 12
17200 10 21
June 17. 23
July 14. 4 Aug. 10.98
1361 1362 1363
3/5 13
17212 23
July 17. 46 Aug. 14. 12
40
Sept. 10. 90
1362 1363 1364
7/9 3 10
17216
Aug. 1.72 Aug. 29.04
1363 1364
10
27
8
7
17219 31
Aug. 9.11 Sept. 5. 7
1363 1364
11, 5'
8
17260
Oct. 13.29 Nov. 9.48
1365 1366
. 8/9 8
Nov. 18. 89 Dec. 16.23
1367 1368
12 9
Nov. 19.6 Dec. 17. 1
1367 1368
2/4 4
75 9
10
17283
306
17285 308
May
-77 -79 -81 .
8/10 3 13
6
1955 Apr. 11 ' May 5
May 3 May 31 June 28
1359 1360 1361
5
» -8 -71
8
6. 3 4. 94
13
Date
Central Meridian
7
June July
4
from
narp
Longitude ron / 1 Central Meridian
Date
1358 1359
May 9.35
3
Longitude
1955 Apr. 5 Apr. 28
17186 95 203
Last Seen
о +68 +21
12
+35
June 2 July 10
-54 +68
Mean Position Area
Re Terence to Ledger
Longltude
Latitude
0
0
87 50
53 45
+21 +18
II II
107 12
-33 -36 -32
II
222
331 321 302
II
93 193
290 279
+32 +32
II II
522 19 680
177 177 172
-22 -23 -22
II
-26 -27
II
4
-55
June 14
+62
June 30
-82
July 11
+56
June 11
-77
July 10 Aug. 5
-54 -74
June 23 July 14
+78 - 2
Aug. 17
+79
July 14
-43
July 22
+69
Aug. 13 Sept. 5
-8 -64
Aug. 15 Sept. 14
+15 +41
36 11 41
137 131
124
-26
II
July 26 Aug. 26
-81 -36
Aug. 4 Sept. 2
+36 +60
94 36
295 294
+22 +20
II II
Aug. 4 Aug. 31
-58 -65
Aug. 14 Sept. 4
+64 -19
44 67
197 193
+32 +31
II
7 5
-77 -58
Oct. 15 Nov. 12
+27 +37
66 93
56 58
-19 -17
II II
Nov. 12
-83
Nov. 23
+56
Dec. 14
-25
Dec. 22
+75
224 470
294 294-
+21 , +21
II II
Nov. 14
-68
-30 +56
5 39
-21
+15
Nov. 17 Dec. 21
284
Dec. 18
282
-20
Oct. Nov.
'
I 1677 (2)
ROYAL GREENWICH OBSERVATORY
Ledgers of Groups of Sunspots For the year 1955
Ledger I : Recurrent Groups Ledger II : Non-Recurrent Groups
GREENWICH PHOTO-HELIOGRAPHIC
RESULTS, 1955
LEDGERS OP GROUPS OF SUNSPOTS FOR THE YEAR 1955.
LEDGER ï. - RECURRENT GROUPS LEDGER n. - NON-RECURRENT GROUPS The time (U. T. ) at which, the photograph was taken is expressed in the first column by the day of the year and decimal of a day reckoned from Greenwich mean midnight.
The place where the photograph was taken is also indicated in the first column. A photograph taken at Greenwich is indicated by the letter G, and those taken at the Cape, Kodaikanal, Mount Wilson and Freiburg, by the letters, C, K, Mt. W and F respectively.
The projected area of the umbrse and whole spots, given in the second and third columns, is the area as it is measured on the photograph, uncorrected for the effect of foreshortening, and expressed in millionths of the Sun's apparent disk.
The area corrected for foreshortening given in the fourth, and fifth columns is expressed in millionths of the Sun's visible hemisphere.
The longitude given in the sixth column is based on the ephemeris given in the Nautical Almanac, assuming a daily sidereal motion of 14.18, due to the Sun's rotation, constant at all latitudes; this corresponds to Carrington's assumed rotation period of S5.38 days.
The proper motion given in the seventh column is derived from the difference of longitude thus computed from the measured positions on any given day and the first day on which the group of spots or single spot is visible, after the correction for the motion appropriate to the latitude has been applied according to the formula, Ç = 14°37 - 2?60 sin2 Ф. A plus sign (increasing longitude) indicates a motion forwards, a minus sign a motion backwards relative to the position on the first day.
The remaining columns correspond to those with similar headings in the preceding section.
When a group is 80 or more from the Sun's central meridian, the measures for that day are not included in taking the mean area or the mean longitude and latitude of the group. In such cases of close proximity to the Sun's limb, the addition of brackets denotes that only part of the group is visible.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. LEDGER I.
Projected Area
Date U.T. Place
Corrected Area
10 6
Umbrs "f ! Umbrœ W"010 Spots Spots
No. 1663.
Longitude and Proper Motion
- R E C U R R E N T GROUPS О Г •
Latitude
Long, from C.M.
8 96 193 199 186 153 130 96 54 54 2
42 508 1014 1306 1072 808 629 500 303 238 26
..
Means
о
G G G G G G G ti
13 17 9 17 9 13 9 0
73 126 91 82 58 35 33 7
Means
о
8 70 118 112 102 88 82 71 52 79 9
43 370 620 737 589 466 396 367 292 350 114
122.9 0.0 126.0 +3.2 126. 2 +3. 5 126.0 +3.5 127. 7 +5. 3 128.2 +5.9 129.8 +7.6 128.4 +6.3 128.9 +6.9 128.5 +6.7 127.0
+19. 1 +19.3 +19.5 +19.7 +20.1 +19.9 +20.2 +20.5 +20.7 +20.5 +19.8
78
423
127.3
+20.0
Group 17166. Jan. 30- Feb. 6. February 5. 29.491 30.439 31.400 32.424 33.420 34. 470 35.406 36.410
о
The
о
-57.2 -41.0 -26. 9 -14.7 + 0.3 +16. 7 +28. 7 +40.5 +54.1 +66. 9 +81. 5
A small spot, w i t h a companion on
23 19 7 11 5 7 5 0
129 140 75 54 34 20 18 4
10
59
No. 1664.
..
125.0 +5.2 124. 2 +4. 5 123.6 +4.0 124.0 +4.5 123.5 +4.1 123.8 +4.5 122.4 +3.3 123. 1 +4. 1
+20.9 +20.7 +20.5 +20.0 +20.2 +20.1 +20.2 +20.0
123.7
+20. 3
..
-70.0 -58.3 -46. 3 -32.4 -19.8 -5.7 + 5.3 +19.2
13
78
28
165
30 43 91 117 91 106
233 256 518 560 556 542
28 34 25 28 52 62 47 57
169 194 193 169 295 297 289 293
170.8 0.0 168. 4 -2. 2 170.2 -0.2 171.0 +0.8 170. 5 +0.5 170.1 +0.3 169. 8 +0. 1 169. 5 0.0
33. 420 34. 470 35.406 36. 410 37.295
-22. 6 -23.3 -22.9 -22. 6 -22.8 -22.8 -22. 6 -22.8
G G G G С
98 87 65 39 29
Group 17173. 53.292 54.310 55.522 56. 296 57. 356 58. 375 59.375 60.383 61.381 62. 373 63. 368 64. 432 65.304
С С G С G G G G G G G G С
Umbrse
1664. 538 421 332 217 109
Means
15 30 35 28 40 48 42 39 31 26 26 13 6
110 170 228 244 198 197 223 219 172 123 108 57 30
Wnole
Longitude and Proper Motion
Latitude
Long, from С. M.
Spots
Group 17164 - continued о
о
о
282 272 250 214
169. 2 168. 9 169.0 168. 7 169. 0
-0. 1 -0. 2 +0.1 0. 0 +0. 5
-22.8 -22.6 -22.8 -22. 6 -22. 3
248
169. 6
57
312
58 53 45 57
46
Feb. 23-Mar. 7.
Means
о
+25.9 +39.4 +51.9 +64.8 +76. 7
-22. 7
A regular spot.
72
167.0 166.8 166. 7 166. 2 166.0 165. 6 164. 8 164. 4 164. 3 163. 9 163. 6 163. 8 163. 5
+1.5 +1.5 +1. 7 +1. 3 +1.3 +1. 1 +0. 5 +0. 3 +0. 4 +0.2 +0. 1 +0. 5 ..
-22.0 -22.0 -22. 1 -22.3 -22.3 -22. 1 -22.5 -22. 2 -22. 1 -22.1 -22. 1 -22.3 -22.3
-61.4 -45. 6 -35.9 -22.1 - 9. 1 + 3.3 +16. 2 +29.2 +41.9 +54. 7 +68. 9 +80. 1
124
165. 3
..
-22.2
..
1b 31 25 18 22 25 22 21 18 18 22
189 175 164 154 111 102 116 118 101 84 93
17
75
14
22
No. 1665.
-74.6
L a t i t u d e +18?9
Group 17167 in Rotation 1356 tt 17172 " " 1357
32.424 33.420 34.470 35.406
Latitude -22? Б
Group 17164. Jan. 26-Feb.7. A stable regular spot w i t h one or two companions on January 27. 28 and 3l. G G G G G G G G
Spots
Corrected Area
Group 17167. Feb. 2-5. A stream, forming near the west, limb and growing rapidly as It passes out of view.
Group 17164 In Rotation 1356 It 17173 " " 1357
25.410 26. 504 27.425 28.400 29.491 30.439 31.400 32.424
wllole
No.
Л stream, led by a regular spot Group 17158. Jan. 4-14 f o l l o w i n g part d i e s o u t r a p i d l y a f t e r January 7. С С С С С G С С С С G
Umbr<-e
Latitude +20?1
Group 17158 In Rotation 1355 tl 17166 " » 1356
3.282 4.282 5.334 6. 279 7. 286 8.491 9.282 10.283 11.279 12.282 13.503
SUNSPOTS Projected Area
Date U. T. Place
С 49
-78.0 -65. 9 -52.0 -38.4 -24.5 -12.4 - 0.1 +13.1
С, G G G
16 20 30 38
57 120 278 230
Means
10 16 34 76
36 92 314 465
184.3 186. 4 188. 7 189. 3
34
227
187.2
0.0 +2. 2 +4. 6 +5. 2
+19. 3 + 18.9 + 19.4 +18.5
+27.9 +43. 1 +59.2 +72. 2
+19.0
Group 17172. Feb. 21-Mar. 3. A p a i r of spots, w h i c h soon develop Into an unstable stream and die out b e f o r e r e a c h i n g the l i m b . 51.296 52.374 53.292 54.310
С С С С
17 45 53 59
106 274 335 392
51 59 49 41
320 360 308 278
190. 6 190. 7 190. 5 191.1
+7. 9 +8. 1 +7. 9 +8.6
+19. +19. +19. +19.
6 6 6 5
-77. 3
-63. 0 -51.1 -37.1
GREENWICH PHOTO-HELIOGRAPHIC KESULTS, 1955.
С 50
LEDGER I. - RECURRENT GROUPS OF SUNSPOTS Projected Area
Date
Corrected Area
U.T.
Place
Umbrœ
Шо1е
Spots
No.
55. 522 G 56.296 С 57. 356 G 58.375 G 59.375 u 60. 383 G 61.381 G
81 69 76 52 37 19 4
Umbrae
1665.
355 358 398 381 166 96 20
Means
No.
Шо1е
Longitude and Proper Motion
Latl-
Long, from C.M.
ole
ole Umbrae ^ Umbr* "b Spots Spots
Spots
Group 17172 - continued
No.
о
о
o
0
48 39 42 3023 15 4
216 205 223 220 107 74 22
190.4 190. 1 190. 1 191.5 191.9 189.9 194. 5
+8.0 + 7. 8 + 7. 9 +9.4 +9.3 +7.9 +12. 6
+18.8 +18.8 +18. 7 +18.6 +17.9 +18.3 +17. 1
-21.9 -12.0 + 2.0 +16. 8 +30.4 +41. 7 +59.4
36
212
191.0
..
+18.8
Group 17201.
June 11-16. 7 14 2 6 7 2
Means
..
54 183 235 265 518 878 1074 1131 698 421 293 13
Means
G G G G G G G G G G
18 23 23 55 100 96 128 78 52 48
78 130 160 331 470 616 595 363 287 229
- continued
50 88 19 42 46 23
20 16 2 4 4 1
149 106 16 30 27 13
8
57
0
о
о
176.3 +10.6 175.7 +10.3 177.8 +12.6 175.0 +10.0 176. 5 +П.8 172. 5 + 8 . 0
+22.0 +23.5 +23.8 +22.3 +23.0 +24.2
-78.8 -64. 0 -51.1 -40.1 -23.1 -16.7
175. 6
+23.1
••
..
Latitude -21? 4
Group 17214 In Rotation 1362 n 17221 " " 1363 n " 1364 17234 "
17 36 32 26 55 108 92 135 88 75 98 (0
79 186 184 171 300 492 618 709 519 416 489 39
173.8 0.0 168. 2 - 5. 3 170. 1 - 3. 2 171. 1 - 2 . 0 172.5 - 0.4 171.9 - 0.7 172.8 + 0 . 4 172.4 + 0 . 3 173.0 + 1. 1 174. 1 + 2 . 4 173. 7 + 2. 3 171.3 ..
+24. 5 +25.9 +25.3 +25.3 +24.5 +24.3 +24. 3 +24.1 +24.0 +24. 6 +24.8 +23. 6)
69
378
172.1
..
+24.7
171.6 172.4 173.6 174.8 175.0 176.2 177.4 178. 5 178. 9 178.9
0.0 +1.0 +2.4 +3.9 +4.3 +5.7 +7.2 + 8. 5 + 9. 2 +9.4
+25.0 +24. 6 +24.8 +24.5 +23.7 +23.7 +23. 6 +23.8 +24.1 +24.3
-65. 2 -55. 8 -42.8 -28.4 -13.6 - 1. 1 +12.9 +25.7 +40.3 +53.8 +66.6 +78.7
Spot a 136.467 137.303 138.316 139. 326 140.319 141.310 142.307 143.367 144.302 145.302
C.M.
Latitude +23?9
Group 17214.
11 36 41 41 96 193 160 215 115 75 57 0
Long, from
Latitude
A few small unstable spots.
No. 1667. 1666.
Group 17188. May 16-27. A pair of spots u n t i l May 19. On the next day Intermediate spots appear to form a stream, of which the leading portion soon coalesces Into a regular spot, w h i l e t h e f o l l o w i n g p a r t b e c o m e s c o m p o s i t e a n d soon d i e s out. G G G G G G G G G G G С
1666
Longl tude and Proper Motion
0
161. 321 G 162.482 G 163. 302 G 164. 344 С 165.515 G 166. 300 J
Group 17188 In Rotation 1360 n 17201 " » 1361
135.330 136. 467 137.303 138.316 139.326 140.319 141. 310 142.307 143.367 144.302 145.302 146.396
Corrected Area
Projected Area
Date U. T. Place
17
73
17
96
14 31 56 56 83 62 56 88
99 189 263 357 387 290 307 419
-52. 4 -40.5 -25.9 -11.3 + 2.0 +16.3 +30.7 +45.8 +58.6 +71.8
199. 667 G
200. 355 G
July 19-20. 23 20
107 73
Means
A group forming near the west limb. 29 40
139 143
170.4
170.4 + 0. 1
0.0
-21.3 -21.5
34
141
170.4
-21.4
..
+62.8 +72.0
Group 17221. Aug. 5-17. A s t r e a m , w h i c h by A u g u s t 10 has coalesced into two principal components. These take a regular out-line as they near the limb. 216.352 217.424 218.267 219.302 220.314 221.429 222.443 223. 311 224.389 225.360 226.300 227.350 228. 326
G G G G G G G G С G G G G
32 73 123 179 224 238 256 233 155 139 82 35 2
156 499 699 975 1381 1507 1484 1340 1053 827 497 219 25
Means
77 86 110 127 137 137 147 140 106 116 95 85 (7
407 592 625 694 847 867 853 800 716 683 589 481 90
172.6 + 4 . 8 173.6 + 6 . 0 172.9 + 5 . 4 172.5 + 5 . 2 173. 1 + 5 . 9 171.7 + 4.7 171.8 + 5.0 171.3 + 4 . 6 171.8 + 5 . 3 171.1 + 4 . 7 173.8 + 7.6 172.5 + 6 . 4 167. 4 . .
-23.0 -22.5 -22.3 -22.0 -21.8 -21.3 -21.7 -21.2 -22.0 -21.8 -22. 1 -21.8 -20. 5)
114
680
172.4
-22.0
..
-74.2 -59.1 -48. 6 -35.3 -21.4 - 8.0 + 5.5 +16.5 +31.2 +43.4 +58.5 +71.1 +78.9
Spot a 221. 429 G 222.443 G
114 119
692 696
65 69
394 404
176.4 0.0 177. 3 + 1. 1
-21.8 -21.5
- з.з +11.0
continued
С 51
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. LEDGER I.
Projected Area
Date U. T. Place
Umbrœ ^no^e Spots No. 1667.
Corrected Area m
Г
Whole Spots
Group 17221.
Longitude and Proper Motion
G С G G G
119 71 73 41 21
566 480 392 279 100
74 53 68 56 64
351 355 365 382 303
Latitude
Long, from C.M.
0
178.0 +1.9 178.9 +3.0 178. 2 +2. 4 178. 8 +3. 2 178.1 +2.6
о
G G G С G G G G
124 137 114 84 66 41 14 2
815 788 774 573 435 218 119 25
72 78 66 53 48 39 21 7
473 449 449 361 318 207 178 90
-21.9 -22. 6 -22.8 -22.8 -22.8
+23.2 +38.3 +50.5 +63.5 +76. 7
9 14 23 30 32 35 23 9 2
Means
..
71 123 134 177 181 184 118 39 14
22 17 20 21 19 20 13 5 1
170 145 115 125 107 105 67 23 9
15
96
Date U. T. Place
168. 2 0. 0 168.0 0.0 167. 3 -0. 6 167. 1 -0. 6 166. 6 -1. 0 167.9 +0.5 167. 6 +0. 3 167. 4 +0. 3
-21.0 -21.4 -21.9 -21.2 -20.7 -20.7 -20.7 -20.5
176.3 +3.3 175.9 +3.1 176.3 +3.6 175. 6 +3. 1 175. 8 +3. 5 176. 0 +3. 8 176. 0 +3. 9 176. 6 +4. 7 176. 4 +4. 7
-21.3 -21.0 -20.7 -21.2 -20.9 -21.0 -21.2 -20.5 -20.4
176. 1
-20.9
-11.5 + 1.7 +12.5 +26. 5 +38.9 +52. 6 +66. 2 +78.9
-74.2 -59. 6
223.311 224. 389 225. 360 226.300 227.350
G С v., G G
131 124 96 69 27
218. 267 219.302 220.314 221.429 222.443 223.311 224. 389 225.360 226.300 227. 350
G G G G G G С G G G
Group 17232.
50 96 165 142 140 121 124 96 69 27
21 165 408 719 971 929 829
8 27 55 91 111 80 78
34 156 296 427 511 474 430
174.1 0.0 174.1 0.0 175.2 +1.2 176. 6 +2. 6 177. 7 +3. 7 179. 3 +5. 4 179. 2 +5. 3
u e
Long, from C.M.
Group 17220 - continued 0
О
о
74 81 76 75 55
392 384 362 410 416
179.0 179.9 178.7 178.8 178. 6
+5.1 +6.0 +4.9 +5.0 +4. 8
+15.5 +15.2 +15. 6 +15.8 +16. 3
68
358
177. 6
..
+15.8
218 431 751 824 758 621 591 458 376 203
34 55 86 72 73 68 81 76 75 55
Aug. 31- Sep t. 10.
-35.5 -18.0 - 8.4 + 4.6 +18.5 +31.4
242. 649 243. 311 244.451 245. 317 246. 294 247.609 248. 318 249. 302 250. 309 251. 301 252.312
G G G G G G G G G G С
Means
9 14 18 27 18 11 9 14 9 7 4
43 59 92 100 68 36 48 50 27 18 26
..
о
+24.2 +39.3 +51.0 +63.5 +77.2
150 246 391 420 394 348 384 362 410 416
178.3 0.0 179.6 +1.3
179.6 180.4 180. 4 180.1 179.9 178.7 178.8 178.6
+1.4 +2.2 +2. 2 +2.0 +1.8 +0.6 +0.7 +0.6
+17.0 +16. 3 +15.8 +15.6 +15.5 +15.2 +15.2 +15.6 +15.8 +16. 3
-43.2 -28.2 -14.9 + 0.7 +14.1 +25.3 +39.3 +51.0 +63.5 +77.2
A persistent small spot.
23 22 16 19 11 6 5 7 5 4 3
108 89 83 71 41 19 24 26 15 11 18
10
40
179.0 178.5 178. 7 178.5 178.6 L78. 2 178.0
.. +1.0 +1. 2 +1.0 +1.1 +0. 8 +0.6
177.6 177.3
+0.2 0.0
177.0 177.1
178.0
+18.0 +17.8 +17.9 +17.8
-0.3 -0.2
+17.9 +18. 2 +18.2 +18. 2 +18. 1 +18. 2 +18. 3
-80.3 -72.0 -56. 8 -45.5 -32.5 -15.6 - 6.4 + 6.2 +19.2 +32.0 +45.4
..
+18.1
••
No. 1669. Latitude +28?0
Group 17220. Aug. 5-16. A stream , d e v e l o p i n g from a s i n g l e spot, In which the leader becomes a regular spot and remains the only stable component. 5 29 78 154 211 156 149
Latl-
Spot a
Group 17220 In Rotation 1363 n 17232 » " 1364
G G G G G G G
705 591 458 376 203
Whole Spots
Longitude and Proper Motion
-47.7
No. 1668. Latitude +16?9
216. 352 217.424 218. 267 219.302 220.314 221.429 222.443
Corrected Area
Umb » Whole Umb Spots
Means
Group 17234. Sept. 1-9. A small regular spot, with a companion from September 2 to September 7. 243.311 G 244.451 G 245.317 G 246.294 G 247.609 G 248.318 G 249.302 G 250. 309 «G 251.301 G
Projected Area
No. 1668. о
Spot Ь 221.429 222.443 223.311 224.389 225.360 226. 300 227.350 228.326
SUNSPOTS
Spot a - continued 0
223.311 224.389 225.360 226. 300 227.350
- RECURRENT GROUPS OF
+15.8 +16.0 +16. 1 +16.3 +16.0 +15.8 +15.4
-72.7 -58.7 -46.3 -31.2 -16.8 - 0.4 +12.9
Group 17233 In Rotation 1364 H 17251 " " 1365 Group 17233. 242. 649 243.311 244.451 245.317 246.294
G G G G G
Aug. 31- Sept. 14. 14 36
73 173
57 95 107
287 413 508
67 78 64 81 74
A stable regular spot. 350 375 324 351 351
172.7
..
171.8 171.3 170.7 170.6
0.0 -0.1 -0.3 -0.1
+26. 9 +26. 9 +27.0 +26. 7 +26. 8
-86. 6 -78.7 -64.2 -53. 3 -40.5
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 52
LEDGER I.
Projected Area
Date U. T. Place
Umbras
Шо1е
Spots
No.
Corrected Area Umbra f° l e Spots
1669.
Longitude and Proper Motion
- RECURRENT GROUPS OF
Latitude
Long.
Date
from
U. T.
C.M.
Place
SUN SPOTS
Corrected Area
Projected Area Umbr*
Group 17233 - continued
^О1е Umbrœ ^ ole Spots Spots
No.
1670.
G G G G G С G G G G
Means Group 17251.
123 123 125 111 95 110 73 32 38 7
568 590 617 640 522 545 368 285 181 27
..
71 68 66 60 54 72 58 33 62 31
329 324 327 346 298 354 291 296 297 119
169.6-0.6 169. 3 - 0. 6 169.0 - 0 . 5 168.4 - 0 . 7 167. 8 - 0. 9 167.6-0.8 166.9-1.0 166.5 - 1.1 165.5 - 1 . 7 164.6 - 2 . 2
+26.7 +26.7 +26.7 +26.7 +26. 8 +26.9 +27.1 +27.2 +27.2 +27.1
-24.2 -15.1 - 2.4 +10.3
65
328
168. 8
+26. 9
••
Sept. 30-Oct. 10.
272.409 G 273.317 G 274.434 G 275. 337 G 276.362 G 277. 337 G 278. 352 G 279.351 G 280. 468 G 281.424 G 282. 342 G
13 24 31 22 24 11 17 22 9 9 0
Means
..
52 105 147 135 134 74 121 1Г8 58 36 40
15 20 20 12 13 6 10 14 7 10
12
No.
1670.
..
+22.8 +35.9 +49.3
+61.5 +73.8 +86.2
A stream of small changing spots. 61 89 98 81 74 40 69 77 48 38 6
161.8 + 1.1 162.6 + 2 . 3 163.1 + 3 . 2 162.6+3.1 163.2 + 4 . 1 163.5 + 4 . 7 167.7 + 9 . 3 168.8 +10.8 169. 8 +12. 2 168.4 +11.2 165. 6 + 8. 7
+29.5 +29.1 +28.8 +29.3 +28.8 +26.6 +28.6 +29.6 +30. 1 +30.4 +29. 9
62
165. 2
+29.2
..
-64. 6 -51.8 -36. 6 -25.1 -11.0 + 2.1 +19.7
247.609 248. 318 249. 302 250.309
G G G G
246. 294 G
12
61
7
39
247.609 G 248.318 G
95 64
399 438
73 61
249. 302 G 250. 309 G
63 2
368 30
234.1
265.698 266.326 267.639 268. 307 269. 342 270. 340 271.301
G G G G G G G
9 15 18 22 28 8 8
74 79 68 94 187 111 70
Means
36 32 34
204 222 193
276.362 G
f o r m i n g QLI c k l y
278.352 G 279.351 G 280. 468 G
0.0
-21.9
+23.0
309 417
235.3 + 1 . 5 235.6 + 1.9
-22.0 ~22.0
97 (5
566 76
236. 3 + 2. 8 232. 5 . .
-22. 6 -22. 2)
+41.5 +51.2 +64. 9
60
333
235.3
-22. 1
29 33 60
165 229 340
240. 0 + 2. 5
-21.9 -22.4 -23.1
о -21.9 ~21.9 ~22. 1 ~22. 2
о +38. 6 +47. 6 +60.2 +74.4
26 25 17 18 19 4 4
216 130 65 75 126 67 41
238.8 +1.4 239.3 +1.9 238.2 +0.8 237.9 +0.5 236. 9 -0.5 237. 6 +0. 3 237.0 -0.3
-23.1 -22. 7 -23 1
16
103
238.0
-23.4
1671.
281.424 282.342 283.362 284.365 285.466
G G G G G
18 52 114 134 179 156 159 169 134 129 125 91 54 22
72 213 538 724 918 888 821 734 685 611 473 397 259 109
..
-23.3 -23.3 -23.9 -24.3
-76. 1 -67. 4 -51. 1 -42. 6
-зо.о
-16. 1 - 4.0
••
Latitude +21.8
A stable regular spot, with
86 90 114 103 113 87 83 88 74 77 88 82 73 75
345 371 540 556 582 497 428 382 377 367 331 357 352 374
140.2 139.8 139.2 139.1 139.1 139.5 139.1 139.0 139.7 138.3 138.1 137.7 137.9 137.3
.. 0.0 -0.4 -0.4 -0.2 +0.4 +0.2 +0.2 +1.1 -0.1 -0.2 -0.4 0.0 ..
+22.0 +22.1 +22.6 +22.8 +22.6 +22.1 +22.1 +22.0 +21.7 +21.8 +21.6 +21.4 +21.6 +21.2
-86.2 -74. 6 -60.5 -48. 6 -35.1 -21.9 - 8.9 + 4.2 +19.7 +30.9 +42.8 +55.8 +69. 3 +83.2
89
428
138.9
..
+22.0
••
+74.4
•• Oct. 28-Nov. 9. Group 17272 companion on November 5.
237.8 0.0 238.9 + 1 . 2
о 0.0 -0.3 -0.5 +0.6
л
277. 337 G
Spot a 247.609 G 248.318 G 249.302 G
о 232.4 232.0 231.6 232.5
One or two small spots d y i n g out at
Group 17253. Sept. 30-Oct. 13. occasional small companions. 272.409 G 273.317 G 274.434 Ci
..
144 188 122 76
Group 17253 In Rotation 1365 11 17272 » " 1366
+70.3
Means Means
44 28 22 5
+61.0
1364 1365
Group 17237. Sept. 4-8. A b l - p o l a r group, within a lew days of the west limb.
195 216 100 30
Group 17247. Sept. 23-29. the' central meridian.
275. 337 G
Group 172Î77 In Rotation " 17247 " "
59 32 18 2
No.
Latitude -22?8
Long, from С. M.
Spot Ъ
+34.0 +49.8
••
Latitude
Group 17237 - continued
0
247.609 248.318 249.302 250.309 251.301 252.312 253.380 254.334 255.341 256.349
Longitude and Proper Motion
+44.0 +54.5
+68. 6
300.364 G 301.366 G
9 22
66 150
30 32
A regular spot w i t h a d i s t a n t small 216 219
135. 3 134.1
+0. 1 -1.0
+21.5 +21.8
-82.3 -70.3
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. LEDGER I.
Projected Area
Date U. T. Place
le
Umbra Wh° Umbrs If ole Spots Spots No.
302.367 303.362 304.371 305.355 306.429 307.312 308.383 309.435 310. 586 311.536 312.363
Corrected Area
С G G G G С G G G G G
Means
45 57 64 62 55 61 68 40 31 18 18
1671.
239 307 330 383 387 348 334 277 147 88 88
..
Longl tude and Proper Motion
- RECURRENT GROUPS OF SUN SPOTS
Latitude
Long.
from C.M.
Date
Place
134. 2
-0. 7
119 96 148
134.0 -0.7 134.2 -0.4 134.1 -0.3 133.9 -0.3 133.7 -0.4 133.4 -0.5 133.1 -0.6 132.7 -0.8 132.4 -0.9 132.2 -1.0
182
133.5
+21.6
225 221 201 211 201 184 187
26
177
25 20 30
32
..
Corrected Area
umbrœ ^ ole Umbrœ ^ ole Spots Spots No.
о
+21. 8 +21.7 +21.6 +21.6 +21.5 +21.5 +21.2 +21.4 +21.6 +21. 5 +21.8
42 41 39 34 29 32 38
No. 1672.
0
Projected Area
U. T.
Group 17272- continued 0
С 53
1672.
+ 7. 7
+21. 5 +35.1 +49.9 +62. 1 +72.8
••
0
330.275 С 117 331.088 К 90 332. 408 u 70 333. 671 Mt. W 71 334.318 С 36 335.427 ii 22
665 455 469 296
207 141
Means
Group 17310
Dec.
352.473 G 353.331 С
0 2
19-20.
4 10
294.295 295.311 296. 374 297.365 298.541 299.417 300.364 301.366 302.367 303.362 304.371 305.355 306.429 307.312
С С G G G G G G С G G G G С
6 34 71 84 84 84 102 117 89 97 73 64 31 21
43 184 325 396 455 495 550 522 537 435 337 299 194 91
Means
..
323.315 324.446 325.294 326.454 327.291 328.600 329.290
С G С G С G С
25 53 72 119 102 107 127
164 331 437 612 656 648 719
206 313 335 309 291 287 302 282 306 270 246 272 270 236
57
286
59 65 65 86 64 60 71
о
376 271 326 272 239 331
193. 1 -4. 6 192.9 -4.5 192. 4 -4. 6 191.3 -5.2 191.4 -4.8 191.7 -4.1
+26. 9 +26. 9 +27.2 +27.3 +27. 1 +26. 9
61
357
193. 6
+27.2
..
о
+ 9.8 +20. 3 +37.2 +52.8 +61.4 +76. 3
A tiny spot. 0 2
6 10
1
8
No. 1673.
A regular spot.
29 58 73 66 54 49 56 63 51 60 53 58 43 54
Group 17288 . Nov. 20-Dec.2. a few small companions.
Long. from С. M.
183. 4 -6. 0 183.4 -5.7
+28.5 +28.9
183. 4
+28.7
-67. 4 -56.1
Latitude +27?8 Mf>pns
Oct. 22-Nov. 4.
О
66 53 49 65 41 52
OrouD 17266 In Rotation 1366 H 17288 " " 1367 17310 » " 1368 " Group 17266.
Latitude
Group 17288 - continued
о
-57.0 -44.1 -30. 6 -17. 7 - 3.7
Longitude and Proper Motion
210.4 -0.1 209. 9 -0. 2 209. 3 -0. 4 208.9 -0.5 208. 6 -0. 4 208. 6 0. 0 208. 1 -0. 1 207. 3 -0. 6 207. 3 -0. 2 206. 5 -0. 6 206. 2 -0. 5 205.4 -1.0
+27.8 +27.9 +27.8 +27.8 +27.8 +27. 6 +27. 6 +27.8 +27.8 +27.6 +27.4 +27.1 +26.9 +26. 6
-86. 0 -73.4 -59.8 -47.3 -32.4 -21. 2 - 9.0 + 4.2 +16. 9 +29.2 +42.5 +54. 7 +68. 6 +79.4
208.3
+27.5
..
211.7 210.9
.. 0.0
..
Lnt.lt.ude -20?7
Or ou p 17267 In Rotation 1366 n n
17287 " 17307 "
" "
1367 1368
Group 17267 . Oct. 23-Nov .4. A large composite spot, followed by a train of small v a r i a b l e spots. ' 295.311 С 296.374 G 297.365 G 298.541 G 299.417 G 300. 364 G 301. 366 G 302.367 С 303. 362 G 304. 371 G 305. 355 G 306.429 G 307. 312 G
34 242 72 126 520 139 164 204 953 250 1321 163 160 274 1275 299 1352 168 322 1746 181 254 1591151 144 217 1349 148 867 119 121 ПО 519 48 336 99 4 25 29
526 574 763 856 748 758 978 947 906 703 571 684 184
209. 7 211.8 212.3 211.7 212.0 212.4 210.6 208. 8 209.8 210.2 208.7 209. 9 210.2
140
751
210.7
0. 0 +2.2 +2.9 +2.4 +2.9 +3.4 +1.7 +0. 1 +1.2 +1.7 +0.4 +1. 7
-21.2 -21.8 -22.1 -22.0 -21.7
-74. 6 -58.4 -44.9
-зо.о
-21.7 -21.8 -22.0 -21.8 -21.7 -22.1 -21.3
-18.1 - 5.2 + 6.2 +17.6 +31.7 +45.4 +56. 9 +72.3 +84.2
-21.8
••
-21.7
A pair or regular spots, followed by Menns 401 401 399 446 414 368 401
197. 0 -3. 4 196. 7 -3. 3 195.9 -3.7 193.0 -6.2 193.8 -5.1 194. 1 -4. 3 193. 5 -4. 6
+27.1 +27.1 +27.3 +27.5 +27.3 +27.3 +27.3
-78.0
-63. 4 -53.0 -40.7 -28.8 -11.3 -2.8
Spot a 295.311 С 296.374 G
26 97
184 398
47 100
331 410
213.9 214.4
0.0 +0.6
-21.3 -21.8
-70.4 -55.8 continued
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 54
LEDGER I. - RECURRENT GROUPS OF SUNSPOTS
Projected Area
Date 'J. T. Place
Umbrœ ^ole Umbra If ole Spots Spots No.
297.365 298.541 299.417 300.364 301. 366 302. 367 303. 362 304.371 305.355 306.429 307.312
Corrected Area
G G G G G С G G G G G
146 164 221 292 287 209 186 119 97 44 4
1673.
Group 17267.
694 888 941 1308 1600 1 380 1204 757 462 299 25
112 103 128 164 161 125 126 99 110 94 29
Group 17287. Nov. 19-Dec. 1. small v a r i a b l e companions. 322. 384 G 323.315 С 324.446 G 325.294 С 326.454 G 327.291 С 328.600 G 329. 290 С 330.275 С 331.088 К 332.408 G 333.671JA.W 334.318 С Means
15 55 116 118 120 182 193 223 179 123 94 71 25
110 329 595 679 687 972 1100 1232 1094 754 597 301 226
..
Group 17307 . Dec. 17-25 on December 20 and 21. 350.281 351.302 352.473 353.331 354.282 355.295 356.536 357.395 358.391 Means
С С G С С С G G G
10 21 43 44 31 29 13 9 7
65 104 171 196 209 192 121 87 33
534 559 546 732 896 828 819 628 522 637 184
Longitude and Proper Motion
Latitude
Long.
from C.M.
о
о
214.7 214.4 214.0 212.6 212.3 211.7 211.7 211.6 211.1 211.1 210.2
+1.1 +0.9 +0.7 -0.6 -0.8 -1.2 -1.1 -1.1 -1.4 -1.3 ..
о
-21.7 -21.8 -21.8 -21.7 -21.8 -21.9 -22.1 -21.8 -22.0 -22.1 -21.3
333 497 547 502 420 548 593 665 630 480 486 391 436
208.3 206. 4 206. 2 205.9 205. 7 204. 5 204. 3 203.0 203.5 203.7 203.5 203. 8 203.6
-1.9 -3. 7 -3. 8 -4.0 -4. 0 -5. 1 -5. 1 -6.3 -5.7 -5.4 -5.4 -4. 9 -5.0
-19.0 -19.3 -19.1 -19.5 -19.9 -20.0 -20.1 -20.2 -20.2 -20.7 -20.7 -20.9 -20.9
86
502
204.8
..
-20.0
19
108
198. 8
-6. 7 -6. 8 -6. 9 -7. 2 -7. 0 -7. 3 -7. 3 -7. 3 -7. 6 ..
-20.5 -20.7 -20.3 -21.0 -20.2 -20.1 -19.9 -20.1 -20.0 -20.3
f 016 Spots ™-
-42.5 -27.3 -16.1 - 5.0 + 7.9 +20.5 +33.6 +46.8 +59.3 +73.5 +84.2
-79.0 -68. 6 -53.9 -43.0 -28.0 -18. 1 - 1.1 + 6.7 +20.2 +31.1 +48.3 +65. 3 +73.6
-79.9 -66. 7 -51.5 -40. 6 -28.1 -15.1 + 1. 1 +12.2 +25.0
Longitude and Proper Motion
Latitude
Long. from C.M.
Sots Latitude -24? 3
Group 17270 In Rotation 1366 n " 1367 17289 "
о
A small regular spot, with a companion
199. 8 199. 5 199. 3 198. 9 198. 9 198. 5 198. 3 198. 2 197. 8
Corrected Area
No. 1674.
A regular spot w i t h a number of
190 137 144 137 126 106 64 47 19
Umbra
Spot a - continued
45 83 107 87 74 102 104 121 103 79 76 9248
29 28 36 31 18 16 7 5 4
Projected Area
Date U. T. Place
Group 17270. Oct. 24-Nov. 5. companions. 296.374 297.365 298.541 299.417 300. 364 301.366 302.367 303. 362 304.371 305.355 306.429 307.312 308.383
G G G G G G С G G G G С G
22 53 88 106 170 151 164 130 152 114 84 47 22
108 290 515 619 853 778 911 782 737 526 359 231 128
Means
Group 17289. 324.446 G 325.294 С 326.454 G 327.291 С 328.600 G 329.290 С 330.275 С 331.088 К 332.408 G 333. 671Mt.W 334. 318 С 335.427 G
28 74 107 139 145 155 143 93 61 33 21 22
Means
0
0
0
72 78 83 81 110 89 93 75 94 81 76 59 53
354 426 488 469 556 461 520 454 457 374 327 289 307
192.2 191. 6 190.0 189.9 189. 2 188. 4 187. 9 188.0 188. 2 188.0 188.6 188.0 187. 1
0.0 -0. 4 -1.7 -1.5 -2. 0 -2. 6 -2. 8 -2.5 -2. 0 -2.0 -1.1 -1.5 -2. 1
-24.0 -23.8 -24.1 -24.3 -23.8 -23. 6 -23.6 -23.6 -23.3 -23.6 -23. 6 -23.7 -23.7
80
422
189.0
..
-23.8
Nov. 21-Dec. 2. 4 13 17 23 18 27 32 21 17 14 4 7
A regular spot with a few variable о
-78.0 -65. 6 -51.7 -40.2 -28.4 -16. 0
- з.з + 9.9 +23.4 +36. 2 +51.0 +62. 0 +75.2
A small regular spot.
13 21 16 18 11 16 18 12 10 10 3 8
92 121 104 108 91 91 80 52 37 23 17 24
180. 8 179.6 179. 4 179.0 178. 3 177.9 177.2 177. 0 176. 4 175.7 175. 2 175.0
-4. 4 -5.4 -5. 3 -5.5 -5. 8 -6.1 -6.5 -6. 5 -6. 8 -7.2 -7. 5 -7.4
-24.3 -25.2 -25. 1 -25.0 -24.8 -24.9 -24.9 -25.1 -25.1 -25.1 -25.0 -24.8
13
70
177.6
..
-24.9
No. 1675.
Latitude
-79.3 -69.3 -54.3 -43.6 -27.1 -18.4 - 6.1 + 4.4 +21.2 +37.2 +45.2 +59.6
-26?!
Group 17274 In Rotation 1366 » " 1367 17294 " n " 1368 17316 " Group 17274 . Nov. 1- 13. A small regular spot, with a companion on November 3-5. 304.371 G 305.355 G 306.429 G
13
18 24
64
88 126
33 24 22
161 115 117
90.0 0.0 89.9 +0.2 88. 2 -1. 2
-27.5 -27.5 -27.3
-74.8 -61.9 -49.4
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 55
LEDGER I. - RECURRENT GROUPS OF SUNSPOTS
Projected Area
Date U. T. Place
le Umbr* W"016 umbra Wh° Spots Spots
No. 307.312 308.383 309.435 310.586 311.536 312.363 313.409 314.481 315.306 316.327
Corrected Area
С G G G G G G G С С
27 39 35 35 29 26 22 11 8 0
1675. 140 173 145 130 132 123 96 44 42 13
Means
Longitude and Proper Motion
Latitude
Long, from C.M.
Date U. T. Place
Umbrœ If ole Umbra; 1?0}е Spots Spots
Group 17274 - continued 20 25 21 21 18 17 17 12 12 0
105 111 86 77 81 82 76 46 63 45
19
90
о
о
No. о
88. 0 - 1 . 1 88. 5 - 0. 2 88. 1 - 0. 3 87.9 - 0.2 87. 7 - 0. 1 87. 6 + 0. 1 87.6 + 0 . 4 87. 1 + 0. 3 86. 8 + 0. 2 85.9 - 0.4
-27.3 -27.8 -27.3 -27.5 -27.8 -27.5 -27.5 -27.5 -27. 6 -27.4
88. 0
-27.5
Group 17294. Nov. 28- Dec. 10. A regular spot, f o l l o w e d by a distant companion u n t i l December 7.
1676.
Means
27 85 197 151 144 143 133 85 88 44 28 21 11
132 522 767 751 800 703 573 482 376 257 169 101 62
..
Group 17316.
(97 117 173 113 89 83 75 49 55 31 27 28 33 73
Dec. 26- 1956 Jan. 2.
477 783 678 562 499 406 323 279 236 184 166 133 188 370
92.2 88. 2 + 7. 0 89. 3 + 8. 5 89. 6 + 9. 0 90.0 + 9.7 89. 1 + 9. 1 88. 0 + 8. 3 90. 1 +10.7 91. 1 +12. 1 90.7 +11.9 91.3 +12.9 90.3 +12.2 90.2 +12.4
-27.0) -27.1 -26. 6 -26. 2 -26. 2 -27. 1 -27.4 -26. 6 -25.9 -25.8 -25.4 -25.3 -25.7 -26. 3
89. 8
-80.4 -67. 0 -49. 2 -40.4 -25.4 -15.0 - 1.3 +13.7 +27.9 +39.2 +55.5 +65. 2 +79.5
..
Means
С С С С С С G G
4 4 4 8 8 2 0 0
19 33 33 21 29 10 13 13
Long, from C.M.
Latitude +28Î3
0
308.383 G 309.435 G 310. 586 c; 311.536 G 312.363 G 313.409 G .314.481 G 315. 306 С 316.327 С 317.479 G 318. 594 G 319. 372 G 320.301 С
0 2 38 52 68 47 52 29 19 15 15 9 2
4 13 198 253 305 259 215 210 139 96 57 26 8
0
о
0 3 35 38 43 27 28 16 11 10 13 10 3
13 20 183 189 201 150 119 117 81 65 49 28 14
29. 9 28.1 28. 6 27.7 26. 9 26.9 27.1 26. 1 26.8 28. 4 28. 3 27.4 27. 0
0.0 +0. 9 +0.4 0. 0 +0.4 +1.0 +0. 3 +1.4 +3. 5 +3. 8 +3.2 +3. 2
+28.8 +29.4 +28.2 +28.2 +28.5 +28.3 +28. 6 +28.4 +28.2 +27.7 +27.3 +27.3 +27.7
20
101
27.4
..
+28.2
о
-€2.0 -69. 9 -54.2 -42. 6 -32.5 -18.7 - 4.4 + 5.5 +19.7 +36.4 +51.0 +60.4 +72.2
Group 17296. Dec. 4-16. A l o n g stream of small spots u n t i l December 10. On the next day there Is a big Increase In area In the rear part, which alone survives to the limb. 337.403 G 338.381 G 339.390 H 340.279 С 341. 469 G 342.279 С 343.373 G 344. 30 1 С 345.434 G 346.280 С 347.558 G 348.281 С 349.395 G
20 20 37 54 66 37 57
R-i 161 236 360 433 258 465
73 128 117 107
781 881 876 672
48 9
257 87
30 21 30 38 40 22 33 42 80 82 100 65 25
128 168 190 254 263 151 268 447 547 618 630 339 245
21.8 20.9 18. 3 15.5 16.7 15.9 13.4 10. 2 9. 7 9. 1 8.1 9.8 9. 3
+4.7 +4.2 +2. 0 -0.5 +1.2 +0.7 -1.3 -4. 2 -4. 2 -4. 5 -5.0 -3.0 -3. 0
+31.2 +31. 1 +29.7 +29.9 +29. 1 +28.9 +28.8 +26.9 +26.4 +26.8 +27.0 +27.3 +27.0
-67. 5 -55.5 -44.9 -36.0 -19.1 - 9.2 + 2.7
47
327
13.8
..
+28.5
••
+11. 7 +26.2
+36.7 +52. 6 +63.8 +78.0
A small spot. Means
359.340 360.290 361.277 362.424 363.289 364.278 0.604 1.420
Latitude
Group 17276 . Nov. 5-17. A stream, led by a small regular spot w h i c h I s the only s t a b l e c o m p o n e n t and alone r e m a i n s by November 14.
Means
331.088 К 332.408 G 333.671Mt.W 334.318 С 335.427 G 336.280 С 337.403 G 338.381 G 339.390 F 340.279 С 341.469 G 342.279 С 343.373 G
Longl tude and Proper Motion
Group 17276 In Rotation 1366 и 17296 " " 1367
о
-38.0 -23.4 - 9.9 + 5.1 +17.4 +28. 2 +42.0 +55. 6 +66. 2 +78.8
Corrected Area
Projected Area
8 5 3 5 5 1 0 0
37 38 27 14 17 6 7 7
85.9 85.4 84.8 84.9 84.4 84.0 83.7 82.6
3
19
84. 5
+13.1 +12.9 +12.6 +13.1 +12.8 +12.7 +12.9 +12.0
-25.7
-24.5 -24.5 -24.3 -24.5 -24.5 -24. 6 -24.7 -24.7
-74.4 -62. 4 -50.0 -34.8 -23.9
No. 1677.
-п.з
Group 17280 In Rotation 1366 n " 1367 17293 " II " 1368 17315 "
+ 5.9 +15.5
••
Latitude +23?0
Group 17280 . Nov. the west l i m b .
10-1S,
A group of small spots f o r m i n g near
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 56
LEDGER I.
Projected Area
Date
Corrected Area
U. T.
Place
ole
Umbra f итЬгш Spots Spots No.
1677.
Longitude and Proper Motion
15 8 0
Means
..
125 42 13
Latitude
Long.
Ггот C.M.
Means
12 37 148 139 172 135 175 179 263 78 78 55 7
66 213 712 785 1119 989 1365 1447 1193 586 560 428 51
. .
0
0
Means
G С С С С С С G G G G G G
2 8 17 70 54 44 54 85 89 48 20 11 0
..
24 48 146 412 303 284 292 556 421 272 159 60 13
Umbrae
97 48 28
93.0 0.0 94. 1 + 1 . 3 97.4 + 4 . 8
+22. 6 +23.0 +22.7
+47.4 +62. 6 +76. 8
7
58
94. 8
+22.8
••
27 43 118 97 102 74 94 100 160 53 72 69 (17
148 246 569 547 661 548 736 806 726 404 521 551 122
95. 8 92.8 90.1 90.9 91.4 91.8 86.5 90.0 89.4 90. 1 89.8 89.8 87. 5
84
539
90. 7
+ 6. 5 +3.7 +1.3 +2.2 +3.0 + 3.5 - 1.5 +2.2 + I.B + 2.*7 + 2.6 +2.8
Whole
Spots
Umbra
+21.7 +21.6 +22. 6 +22.8 +22.4 +22.4 +22.1 +22.0 +22.5 +22.3 +22.9 +22.9 +23. 2)
-76.8 -62. 4 -48.4 -39.1 -24.0 -12.3 -2.8 +13. 6 +26.2 +38. 6 +54.0 +64. 7 +76.8
+22.4
8
98
13 17 53 34 27 30 48 55 34 19 16 0
77 146 308 189 166 165 320 259 190 145 86 38
91.4 91. 1 92. 1 92. 9 92.9 91.6 91.4 90.2 89.8 90.0 89. 3 92.5 91. 3
.. +7.6 + 8. 8 + 9. 8 +10.0 +8.9 +8.9 +8.0 +7.8 +8.2 + 7. 7 +11.1 +10. 1
+21.9 +22.3 +23.0 +23.1 +23.3 +23.4 +23.5 +24.1 +24. 3 +24.9 +24.8 +24.5 +24. 1
29
174
91.3
..
+23.8
-81.4 -69. 2 -55.7 -41.9 -26.8 -16. 7
- 3.9 +12.4 +22.7 +35.8 +50.9 +65. 6 +77. 6
Шо1е
Longitude and Proper Motion
Latitude
Long. Ггот С. M.
Spots Latitude +22?!
Group 17306 In Rotation 11 n 17325 "
о
12 9 0
Group 17315 Dec. Zb- 1956 Jan. 6. A compact group of small spots which develops Into a stream by January 1 and Is dying out as It approaches the limb.
358.391 359. 340 360.290 361.277 362.424 363.289 364.278 0.604 1. 420 2.401 3. 598 4.474 5.471
Date U. T. Place
Corrected Area
No. 1678.
Group 17293. Nov. 28- Dec. 10. A group. оГ numerous spots rormlng an almost continuous structure until December 5, after which the whole becomes a normal stream.
331.088 К 332.408 G 333.671Mt.W 334.318 С 335.427 G 336.280 С 337.403 G 338.381 G 339.390 F 340.279 С 341.469 G 342. 279 С 343.373 G
Projected Area
Group 17280 - continued 0
313.409 G 314.481 G 315.306 С
- RECURRENT GROUPS OF SUN SPOTS
1368 1369
Group 17306 Dec. 14-22. A stream, developing from a rew tiny spots. The leader b e c o m e s a r e K u l a r s p o t and Is the most stable component.
347. 558 348.281 349.395 350.281 351.302 352.473 353.331 354.282 355.295
G С G С С G С С С
9 33 135 240 217 166 89 54 0
52 249 712 1202 1152 856 627 372 52
Means
5 18 73 137 136 126 86 77 (0
31 138 385 680 714 650 607 557 113
290.5 291.3 293. 6 295.4 294. 9 294. 5 293. 6 294. 2 288. 3
82
470
293. 5
0.0 +0.9 +3. 4 +5.4 +5. 1 +4. 9 +4. 1 +4. 9
..
+21.8 +21.7 +20.9 +20.8 +20.7 +21.5 +21.3 +21.4 +23. 5)
,-25. 0 -14.7 + 2.3 +15.7 +28.7 +43.7
+21.3
..
+20. 1 +20.3 +20.3 +20. 7 +20.3 +20.7
+ 4.3 +18.0 +32.2 +47.6 +57.8 +70.2
+54.1 +67. 2 +74.7
Spot o
349.395 350.281 351.302 352.473 353.331 354.282
G С С G С С
91 138 134 99 59 29
438 796 619 467 422 259
49 79 86 79 60 47
237 454 396 374 430 422
295.6 297. 7 298.4 298. 4 297. 3 297. 2
0.0 +2. 3 +3.1 +3. 3 +2. 4 +2. 5
A small regular spot (return of a Group 17325. 1956 Jan. 6-^8. o r g r o u p 17306) w i t h a d i s t a n t c o m p a n i o n on J a n u a r y 10.
5.471 6.286 7. 523 8.293 9.487 10.498 11.261 12.382 13.305 14.492 15.495 16.453 17. 507
Means
G С G С G G С G С G G G G
9 13 22 27 35 37 48 35 21 22 17 17 2
..
76 71 151 155 192 168 255 196 136 127 104 78 26
24 19 20 20 22 21 27 20 13 16 16 23
202 102 134 115 119 96 143 114 84 94 97 105
6
76
19
114
297. 0 +5. 1 296.9 +5.2 296. 3 +4. 8 296. 2 +4. 8 295. 2 +4. 1 295. 5 +4. 5 295. 4 +4. 6 295. 1 +4. 5 294. 7 +4. 2 294. 0 +3. 8 293. 5 +3. 4 292. 8 +2. 9 292. 2 +2. 5
+22.6 +22.8 +23.0 +23.1 +23.1 +22.7 +22.8 +22.7 +22.9 +23.1 +23.1 +23.1 +23.3
-76.7 -66. 1 -50.4 -40.4 -25.6 -12.0 - 2. 1 +12.4 +24. 1 +39.1 +51.8 +63.7 +77.0
295.0
+22.9
••
..
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. - NON-RECURRENT GROUPS OF SUNSPOTS
LEDGER II.
Projected Area
Date U. T. Place
Umbrœ
Corrected Area
Шо1е
Spots "Sots
Longitude and Proper Motion
С 57
Latitude
Long, from С. M.
Projected Area
Date U. T. Place
Corrected Area
Longl tude and Proper Motion
ole
Umbrœ f ° le Umbrffi ^ Spots Spots
Group 17163 Apr. 6-11. A p r i l 7.
Л group of small s p o t s w i t h a b r i e f m a x i m u m on
94.333 95. 356 96.381 97.347 98. 340 99.317 100. 303
13 29 74 33 13 10 0
component. С С G G G G G
0
2 50 51 35 17 9 0
8 231 342 182 107 32 4
1 31 31 24 14 9 0
5 142 211 122 84 31 6
о
о
267. 3 270. 3
0. 0 +3. 4
270. 7
+4. 3
270. 9 +5. 0 272. 2 +6. 7 270. 9 +5. 8 272.2 +7.6
0
+29.9 +29.2 +29.3 +29.5 +29.5 +29. 5 +29.2
о
-22.8 -6.4 + 8.4 +22.1 +37.9 +48. 7 +62. 8
С G G С G С С
52 138 413 165 74 63 9
Means Means
16
85
Long, from С. M.
Group 17179
Jan. 23-29. A small stream, d e v e l o p i n g f r o m a t i n y spot on January 23. The leader, a regular spot, Is the only stable
22.273 23.287 24. 378 25.410 26. 504 27. 425 28.400
Latitude
270.6
7 16
29 77
44 21 11 12 0
246 109 60 72 14
16
87
0
о
52.6 0.0 53.1 +0.6 53. 0 +0. 7 52.9 +0.7 53.5 +1.5 53. 2 +1. 3 49. 5 -2. 3
+20.0 +20.7 +20.7 +20.8 +20.8 +21.5 +22.0
52.5
+20.9
..
о
- 8.0 + 6.0 +19.4 +32.0 +45.7 +58.3 +67.7
+29.4 Group 17182 Apr.
Group 17168
Feb. 4-12. A small group w i t h a b r i e f maximum on February 8 and steady advance in longitude. 34.470 35.406 36.410 37.295 38.456 39.301 40.453 41.391 42.415
G G G С G С G G G
Means
4 0 0 12 31 21 19 9 0
13 4 9 65 187 166 96 35 9
3 0 0 7 20 15 18 12 0
10 3 5 39 120 118 88 45 23
..
. .
8
50
95.2 0.0 93.4 -1.5 92. 6 -2. 0 95.0 +0.7 96. 4 +2. 5 97. 7 +4. 1 98. 8 +5. 6 98. 4 +5. 5 98. 8 +6. 2
+27.2 +26. 6 +26. 3 +26. 4 +26. 7 +26.7 +26. 2 +26. 2 +26. 4
96. 3
+26. 5
-34.3 -23.7
-п.з
+ 2.7 +19.4 +31.8 +48. 1 +60. 1 +73.9
Apr. 4-9. A bl-polar group, developing from a few tiny spots on April 4.
Means
С С G G С G
9 18 38 31 18 0
52 102 261 165 100 7
5 12 28 29 24 (0
20
31 65 192 154 137 16
119
84. 1 83. 3 83.5 83.0 83. 0 80.3
83. 3
0. 0 -0. 5 0.0 -0.3 0. 0 ..
+24.6 +24.8 +25.0 +25.3 +25.0 +26.4)
+24.9
104.504 105. 363 106. 322 107. 311 108. 325 109. 361 110.321
+ 9.9 +22.7 +36.4 +49.4 +62. 1 +72.5
••
G G G С G G G
One or two small spots , not seen on A p r i l 18-20. 0 0 2 0 0 0 4
7 9 18 0 0 0 27
Means
0 0 2 0 0 0 2
21 14 18 0 0 0 15
204. 4 203.7 203.4
.. 0.0 0.0
. .
. .
1
8
203. 1
202.2
-0.2
-25.9 -23.5 -24.0
-82.0 -71.3 -59.0
..
..
-26. 2
-7.4
-24.6
Group 17 183 Apr. 17-24. 106. 322 107. 311 108.325 109.361 110.321 111.322 112. 321 113. 316
Group 17 178
93.302 94. 333 95.356 96. 381 97.347 98. 340
15-21.
G С G G G G G G
Meens
Intermittent. 0 0 0 0 0 5 0 2
9 7 0 0 0 29 0 18
..
A few tiny spots. 0 0 0 0 0 3 0 1
13 7 0 0 0 16 0 10
0
6
192.8 0.0 193.8 +1.4
-28.1 -28.9
-69. 6 -55.5
192.6 +1.6
-27.1
- 3.7
192. 5
+2. 3
-26.4
+22.5
192. 9
..
-27.6
••
Group 17184 Apr.27-May 7. A b l - p o l a r group. o f w h i c h remains by May ?. 116. 320 С 117. ЗН С 118.315 G
9 24 45
42 119 289
i"?
7a
30 42
152 270
63. 0 60. 1 59. 3
the leader alone
0. 0 -2. 3 -2. 5
+34. 8 +35.1 +34.9
-67. 3 -57.1 -44. 6
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 58
- NON- RECURRENT GROUPS OF SUNSPOTS
LEDGER II.
Projected Area
Date U.T.
Place
Umbra
Wnole
Spots
Corrected Area Umbra
Longl tude and Proper Motion
Шо1е
Spots
Latitude
Long, from С. M.
Projected Area
Date U. T. Place
Whole Spots
Group 17184 - continued 0
119. 349 120.375 121. 329 122.297 123.315 124.323 125.568 126. 322
45 43 37 36 20 9 5 2
G G G G G G G G
Means
221 219 197 191 104 39 18 9
..
34 29 23 23 13 7 5 3
167 146 125 122 70 30 17 11
59. 6 58. 4 59.0 58.9 57. 9 57.4 56.3 56. 8
11
108
58. 8
Group
С G G G G G G G
Means
9 11 20 23 23 23 11 5
42 70 95 72 72 73 68 27
..
3-12.
122.297 123-315 124. 323 125.568 126. 322 127.387 128.300 129.315 130.398 131.303
G G G G G С С G G G
-1. 5 -2. 1 -0.9 -0.4 -0. 7 -0.6 -0.9 +0. 1
о
Whole Spots
+34.6 +34.3 +33.8 +33.6 +33.8 +33.8 +33.3 +33. 6 +34.1
о
-30.7 -18.3 - 5.1 + 7.6 +20.0 +32.9 +48.2 +58.7
••
17185
0
139. 326 140.319 141.310 142. 307 143.367 144.302 145. 302 146.396 147. 324 148.354 149. 302
G G G G G G G С С G G
23 53 45 53 37 43 41 22 22 7 0
130 230 267 296 249 274 265 121 116 50 9
..
Means
16
74
12 15 14 13 12 6 3
74 72 45 41 39 37 16
46. 2 45.5 45.8 45.5 44. 7 45.2 44. 7 45.2
0. 0 -0.6 -0.3 -0.5 -1. 3 -0.7 -1. 2 -0.6
+17.9 +18.1 +17.9 +17.5 +17. 6 +17.8 +17.9 +18. 1
Latitude
Long. from
С. M.
0
о
0
23 40 30 31 21 24 24 15 17 7 0
134 181 178 175 140 154 157 81 90 49 12
129.2 +0.5 128.4 -0.1 127.8 -0.4 127.8 -0.1 128.1 +0.5 127.0 -0.4 125.3 -1.8 125.8 -1.0 124.0 -2.6 121.4 -4.9 1 18. 8 -7. 2
+24.2 +24.5 +25.2 +24.9 +24.9 +24. 6 +25.1 +25.0 +25.3 +25.3 +25.1
-56. 9 -44. 6 -32.1 -18.9 - 4.6 + 6.7 +18.2 +33.2 +43.7 +54.7 +<54. 7
21
123
126.0
+24.9
••
11
50
45.4
..
+17.9
-71.0
-58.4 -44.5 -31.2 -19.4 - 6.1 + 6.8 +20.7
A string of small unstable spots. 16 29 54 44 37 4 0 0 5 2
86 184 278 284 150 27 0 0 32 18
31 38 51 32 24 2 0 0 3 1
194 242 275 210 98 16 0 0 20 12
334.1 0.0 333.7 +0.2 330. 4 -2. 5 329. 1 -3. 1 330. 5 -1. 2 334. 2 +3. 1
-32.9 -32. 6 -32.5 -32.9 -33.1 -33.6
-77.2 -64. 2 -54.1 -39.0 -27. 6 - 9.8
330.8 +1.4 327. 1 -1. 7
-32.9 -34.0
+26. 6 +34.9
18
107
331.2
-33.1
Group 171P2 A stream developing from a small spot f i r s t seen on May 24. The largest and most stable c o m p o n e n t Is the central spot. The whole group dies out as It approaches the limb.
May 24- June 4.
143.367 144.302 145.302 146.396 147. 324 148. 354 149.302 150. 307 151.304 152.307 153.095 154. 366
G G G С С G G G G G К С
0 5 39 85 128 85 78 46 14 9 9 0
..
Group 17190 May 18-30. A variable stream, of which the leader Is the only stable component. 5 11
18 71
(20
73
18
120
131.7 129.0
0.0
+24. 6) +24.9
-81.2 -70.5
5 23 174 374 707 582 412 208 89 57 35 4
Means
147. 324 148. 354 149.302 150.307 151.304 152.307
Means
С G G G G G
0.0 -1. 3 -1. 4 -1.8 -2. 9 -2. 9 -4. 0 -3.4 -4. 0 -1.1 -2. 2 -2. 7
0 4 29 54 78 49 47 30 11 9 12 0
6 21 127 238 429 342 246 136 66 56 45 12
73.2 71. 5 70. 9 70.0 68. 4 67. 9 66. 4 66.5 65. 4 67. 8 66. 4 65. 3
27
144
68. 3
+30.4
Group May 28-June 2.
Means
137.303 G 138.316 G
ш г
Longitude and Proper Motion
Group 17190 - continued О
Group 17186 May
Corrected Area
A small spot, which divides Into two before dying
Apr. 28-May 5. out. 117.313 118.315 119.349 120.375 121.329 122.297 123.315 124.323
;
+29.9 +30.2 +29.8 +30.5 +30.8 +30.5 +30.6 +30.7 +29.4 +31.1 +30.9 +30.9
-59.5 -48.8 -36.2 -22.6 -11.9 + 1.2 +12.3 +25.7 +37.8 +53.4 +62. 5 +78.2
17194
One or two tiny spots. 8 7 5 0 5
42 32 43 27 39
5
37
..
6 4 3 0 3 3
28 19 24 15 23 25
49. 2 0. 0 51.4 +2.5 50. 3 +1. 6 51.8 +3.4 49.9 +1.8 48.8 +1.0
+25.1 +24.7 +25.1 +25.3 +24.9 +25.0
-31.1 -15.3 - 3.8 +11.0 +22.3 +34.4
3
22
50. 2
+25.0
••
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. LEDGER II.
Projected Area
Date U.T. Place
Umbrœ
Шо1е
Spots
Corrected Area
Longitude and Proper Motion
Umbrs ^ ole Spots
- NON-RECURRENT GROUPS
Latitude
Long. from d.M.
OF SUNSPOTS Projected Area
Date U.T. Place
0
154. 366 С 155.349 G 156.303 G 157. 330 С 158. 427 G 159. 607 G 160.315 G 161.321 G 162.482 G 163. 3 0 2 G 164.344 С
22 44 62 43 35 23 19 11 0
Means
..
0 2
96 245 354 250 171 117 82 87 0 9 13
23 35 42 26 20 13 12 7 0
103 196 261 152 101 72 54 64 0
0 2 16
291.9 292.0 291.7 293.1 292.8 294.6 294.0 290.4
o!o +31.7 +0.6 +31.7 +0.8 +32.3 +2. 8 +31.3 +3.1 +31.3 +5.5 +31.1 +5.3 +31.3 +2.3 +31.2
9 282.3 ~4.8 +34.3 16 276.8 ~9. 7 +33.6 93
+32.0
290. 0
-55.2 -42.1 -29.8 -14.8 - 0.6 +16. 8 +25. 6 +35.3
+53.4 +61. 7
••
Group 17 197
June 10-16. Tiny scattered spots In high northern lati tu le not seen on June 14. 160.315 161.321 162.482 163.302 IM. 344 165.515
GO GO GO G 0 С 0 G O
9 9 11 20 0 5 0 4
0 0 0 0 0
17 13 11 17 0
199.7 0 . 0 +45.9 192.3 -7.3 +44.1 192.8 -6.7 +43.7 191.6 -7.8 +46.2 189.7 ~ 9 . 4
-68. 7 -62.8 -46.9 -37.3
Corrected Area
170.341 С 171. 310 G 172.311 G
94 34 9
Means
..
Long, from C.M.
Longitude and Proper Motion
Latitude
Group 17198 - continued о о 46Л 78 387 183.7 -1.5 218 39 251 183.6 -1.4 60 20 130 184.0 -0.8
-24.0 -23.9 -24.1
о +48.0 +60.8 +74.4
-24.0
••
«""•• Zll ™»- SÏÏ
Group 17196 June 4-14. A long stream of changing spots, not seen on Ju tie 12. On June 13 and 14 a Tew tiny spots reappear.
С 59
65
381
185.3
..
0
Group 17200 June 11-23. A stream, undergoing considerable changes Гг эт day to day, 1 nvmedlately f o l l o w i n g Group 17196. 161.321 162.482 163.302 164.344 165.515 166.300 167.315 168.273 169.359 170. 341 171.310 172.311 173.360
G G G С G G G G С С G G С
Means
2 27 46 89 103 203 214 145 159 139 123 69 11
41 167 289 430 531 1047 1297 1139 1064 1151 946 451 85
..
4 34 42 63 61 111 116 81 99 103 116 104 (33
105 216 266 310 314 578 701 639 670 B47 907 710 248
178.1 175.5 П5. l 174. -> 175.8 176.7 177.1 178.4 179.3 177.5 176.7 П7. 5 173.5
78
522
176. 9
0.0 ~2.4 -2.7 -2.9 -1.6 -0.6 0.0 +1.4 +2.5 +0.8 +0.2 +1.1 .. ..
-20.9 -21.4 -21.5 -21.6 -21.0 -20.9 -20.9 -21.0 -21.2 -22.2 -22.8 -23.0 -24.8)
-77.0 -64.2 -53.8 -40.4 -23.8 -12.5 + 1.4 +15.4 +30.6 +41.8 +53.9 +/>7. 9 +77.8
-21.5
••
+45.0 - 9.9 Group 17202
..
Means
0
10
193.2
..
+45.0
Group 17198 June 10-22. A regular spot, with one or two close compailions, J u s t p r e c e d i n g Group 17200. By June 17 the umbra 1 eglns to d i v i d e and the w h o l e spot s p l i t s I n t o two by Jur e 21, decreasing In area as It approaches the l i m b .
June 16-22.
One or two small spots.
166.300 167.315 168. 273 169.359 170.341 171. 310 172. 311
5 9 9 7 2 18 2
G G G С С G G
Means 160.315 161. 321 162.482 163.302 164. 344 165.515 166. 300 167. 315 168. 273 169. 359
G G G G С G G G G С
18 46 73 105 123 126 159 117 97 103
131 286 440 623 717 747 805 782 607 569
59 67 67 79 77 72 87 66 58 71
430 418 405 467 452 426 443 438 364 393
188.2 187.4 186.7 186.6 186.2 185.6 185.4 185.2 185.0 184.6
.. 0.0 -0.4 -0.3 -0.5 -0.8 -0.8 ~0. 8 ~0. 7 -1.1
-23.8 -23.8 -23.5 -23.9 -24.1 -23.8 -24.0 ~24. 1 ~24. 3 -24.2
-80.2 -67. 7 -53.0 -42.3 -28.9 -14.0 - 3.8 + 9.5 +22.0 +35.9
30 39 39 31 18 87 16
..
10 10 7 5 1 10 1
63 45 32 20 10 47 9
113.4 0.0 112.7 -0.6 112.9 -0.3 1 1 2 . 8 -0.3 113.4 +0.5 113.6 +0.8 112.2 -0.5
+ 19.3 +19.3 +19.8 +20.0 +20.0 +21.5 +20.4
-75.8 -63. 0 -50.1 -35.9 -22.3 -9.2 + 2.6
6
32
113.0
+20.0
••
Group 17333 June 28-July 10. A regular spot with occasional small companions. On July 5 It begins to become elongated before s p l i t t i n g up and dying out. 178. 414 G 179.489 G 180.318 G
9 21 37
69 185 302
40 36 43
303 314 357
308.1 .. 306.9 0.0 305.6 -0.8
~32. 5 ~32. 5 -32.0
-80.7 -67.7 -58.0
GREENWICH PHOTO-HELIOGRAPH!с RESULTS, IQSS.
С 60
- NOK- RECURRENT GROUPS OF SUNSPOTS
LEDGER II.
Projected Area
Date U.T. Place
Corrected Area
le Umbra ^ole Umbrae ^° Spots Spots
Longitude and Proper Motion
Latitude
Long, from С. M.
Projected Area
Date U. T. Place
181.528 182.312 183.438 184.336 185.331 186.300 187.305 188.315 189.339 190.330
С G G G G G G G G G
Means
85 76 65 51 79 56 34 18 5 0
396 404 411 471 457 346 244 122 16 5
..
Longitude and Proper Motion
Umbrœ ^°le Umbra ^ole Spots Spots
Group 17203 - continued о
Corrected Area
Latitude
Long, from С. M.
Group 17206 о
о
О
71 55 42 32 49 36 24 15 6 0
329 297 267 293 284 224 173 104 18 9
305.4 -0.4 304.3 -1.0 303.8 -0.9 302. 8 -1. 4 301.9 -1.7 300. 7 -2. 4 300. 1 -2. 5 299. 6 -2. 4 299. 7 -1. 7 299.0 -1.9
-32.3 -32.2 -32.3 -32.3 -32.7 -32.5 -32.6 -32.9 -32.5 -32.5
-42.2 -32.9 -18.5 -7.6 + 4.6 +16. 3 +29.0 +41.8 +55.5 +67.9
34
222
302. 5
-32.4
••
..
July
4-14.
184. 336 185.331 186.300 187.305 188.315 189. 339 190.330 191.325 192.312 193.320 194. 302
G G G G G G G G G G G
Means
Small unstable spots. 0 5 7 9 7 10 16 23 5 7 5
5 35 97 48 39 101 151 282 60 60 16
..
о
о
0
0
0 7 8 8 4 6 9 13 3 4 4
13 52 105 40 26 58 83 153 34 38 12
230.9 227. 5 223. 9 221. 6 222.0 225. 7 224. 2 223. 5 222. 5 222. 5 222.2
0.0 -3. 1 -6. 4 -8. 4 -7.7 -3. 7 -4. 9 -5. 2 -5. 9 -5. 6 -5.6
+25.7 +24.8 +24. 6 +25.8 +25.7 +25.0 +26.1 +25.9 +27.9 +27.2 +26.9
-79.5 -69.8 -60.5 -49.5 -35.8 -18.5 - 6.9 + 5.6 +17.6 +31.0 +43.7
6
56
224. 2
..
+26.0
••
Group 17204 June 30-July 11. dying out.
A regular spot, qulclQy d i s i n t e g r a t i n g and
Group 17207 July 6-1Б.
180.318 G 181.528 С 182.312 G 183.438 G 184. 336 G 185.331 G 186.300 G 187.305 G 188.315 G 189. 339 G 190.330 G 191.325 G Means
9 38 51 70 74 79 105 71 39 21 11 5
55 213 293 374 397 397 390 397 217 111 74 25
..
32 54 52 53 48 47 60 40 24 14 9 5 37
199 305 302 286 258 234 222 226 132 77 60 25 193
281.1 280.1 280. 0 280. 3 280.3 280. 4 279.8 279. 3 280. 2 279- 1 277. 2 274. 0
0.0 +0. 3 +1. 2 +1.7 +2. 3 +2.3 +2. 3 +3. 7 +3. 2 +1.8 -0. 8
+32.1 +32.5 +32.3 +32.2 +31.7 +31.3 +31.5 +31.4 +30.6 +30.9 +31.9 +34.8
-82.5 -67.5 -57.2 -42.0
-зол
-16.9 - 4.6 + 8.2 +22.4 +34.9 +46.1 +56.1
186. 300 187.305 188.315 189. 339 190.330 191.325 192.312 193. 320 194. 302 195. 336
G G G G G G G G G G
Intermittent . 5 2 5 0 0 12 0 0 0 0
23 16 23 0 0 55 0 0 0 7
Means 279. 2
..
+31.9
One or twosmall spots. 10
44
2 4 0 0 6 0 0 0 0
17 18 0 0 30 0 0 0 5
209. 6 0. 0 210.2 +0.9 209.3 +0.2
+25.0 +25.0 +24.1
-74.8 -60.9 -48.5
209. 1
+0. 8
+24. 1
-8.8
•. 209. 3
.• +2. 1
.,
. .
+23.6
+44.4
2
11
209. 5
+24.6
••
Group 17212 Group 17Й05
July 1-6. 181.528 182.312 183.438 184.336 185.331 186. 300 Means
С G G G G G
A small spot, wltti a companion on July 2. 4 10 5 5 2 2
..
16 37 18 18 9 9
5 10 3 3 1 1
21 36 12 11 5 5
280.4 0.0 278. 3 -2. 1 281. 1 +0. 8 280. 9 +0. 6 280. 6 +0. 3 280. 3 +0. 1
+17.3 +17.2 +17.4 +17.2 +17.3 +17.0
-67.2 -58.9 -41.2 -29.5 -16.7 - 4.1
4
15
280. 3
+17.2
••
..
July 14-22.
A few small spots, not seen on July 18 and 19.
194.302 195. 336 196.313 197. 313 198.434 199.667 200.355 201. 528 202.351
5 14 7 5 0 0 17 9 14
Means
G G G G G G G С G
..
18 39 25 14 0 0 62 80 71
4 9 4 3 0 0 13 10 25
14 26 15 8 0 0 47 87 126
135.3 135.1 134.8 133. 5 .• .. 137.8 139.6 141.0
0.0 +0.1 +0.1 -0. 9 ..
-25.6 -26.3 -26.4 -26. 7
+4.3 +6.4 +8.1
-25.1 -24.8 -24.5
+39.4 +56.7 +69.0
8
36
136.7
..
-25.6
••
-43.2 -29.8 -17.1 -5.2
..
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. LEDGER II.
Projected Area
Date U.T. Place
Corrected Area
Uhnl
Longitude and Proper Motion
Who! p
Umbrœ "noie Spots
- NON- RECURRENT GROUPS
Latitude
Long, from
C.M.
Date U. T. Place
OF SUNSPOTS Projected Area
Corrected Area
VJhnl
Wh 1
207.322 G 208.339 G 209. 141 К 210. 379 G 211.343 G 212.336 G 213.335 G 214.420 G 215.433 G Means
5 46 101 133 361 265 138 133 73 35
..
(0 12 15 14 34 30 14 10 4 0 15
14 76 100 104 218 144 72 70 42 22 94
0
0
298. 0 293.0 293. 4 293. 4 295. 3 295. 1 295. 5 295. 7 296. 5 295. 4
.. 0.0 +0. 6 +0. 7 +2. 8 +2. 8 +3. 3 +3. 7 +4. 7 +3. 8
294. 8
..
о
+21.2) +22. 6 +22.6 +22.3 +21.9 +21.8 +21.8 +21.5 +20.6 +21.3 +21.8
о
-80.6 -73.3 -59.4 -48.8 -30.5 -18.0 -4.5 + 9.0 +24.1 +36. 4
A small stream, slowly developing as It approaches
227. 350 G 228.326 G 229.370 G 230.335 G 231. 307 G 232.362 G 233.318 G 234.343 G
2 5 18 10 33 27 41 21
14 27 103 119 194 180 228 114
Means
4- 14. One or two tiny spots until August 8. a brief Increase In area.
Means
5 2 5 5 2 21 55 41 30 7 0
23 9 25 23 14 100 230 201 96 29 5
..
о
о
о
о
1 3 10 6 20 21 43 39
8 14 53 65 120 139 239 213
81.4 0.0 82.3 +1.0 82.4 +1.2 81.6 +0.6 84. 2 +3. 3 84. 3 +3. 5 84. 5 +3. 8 84. 0 +3. 5
+21.3 +21.2 +20.9 +20.2 +19.4 +19.5 +19.9 +20.0
-20.0 -6.2 + 7.7
18
106
83. 1
+20.3
+19.6 +35.1 +49.1 +61.9 +75.0
••
Group 17226
Aug.
G G G G G G G G G С G
Long, from C.M.
Aug. 16-23. the limb.
Group 17219
215.433 216.352 217.424 218.267 219.302 220.314 221.429 222.443 223.311 224. 389 225.360
Latitude
Group 17224
July 26- Aug. 4. A group of small variable spots , w i t h maximum area on July 30. 0 7 15 18 57 55 27 18 7 0
Longitude and Proper Motion
Umbras „_ Umbrffi .^ Spots Spots
Spots Group 17216
206. 391 G
С 61
Later there Is
5 2 3 3 1 12 31 26 21 6 0
23 7 16 14 8 56 134 128 68 25 6
200.8 199. 1 199.9 200.7 198. 2 197. 1 196. 9 196. 3 195. 7 193.0 191. 6
0.0 -1. 2 +0.2 +1.4 -0. 5 -1. 1 -0. 7 -0. 7 -0. 8 -3.0 -3. 8
+32.2 +31.3 +32. 6 +32.1 +31.9 +32.6 +32.4 +32.1 +32.1 +31.1 +31.1
-58.2 -47.7 -32.8 -20.8 - 9.6 + 2.6 +17.2 +30.0 +40.9 +52.4 +63. 9
10
44
197.2
..
+32.0
••
Aug. 24- Sep t .2. A stream qulcIUy breaking up after August 30 and dying out before reaching the limb.
235.321 236.364 237.365 238.374 239.305 240. 308 241. 379 242.649 243.311 244.451
G G G G G G G G G G
2 18 52 87 80 64 50 22 7 0
21 84 244 502 383 324 242 111 62 25
Means
2 12 33 54 50 42 37 20 8 0
17 58 155 311 238 211 175 96 69 37
311.9 312.7 313.1 311.8 309.0 308.4 307. 8 304. 1 307. 8 303.5
0.0 +1.9 +3.3 +3.0 +1.2 +1.6 +2. 1 -0. 3 +4. 0 +0.9
+42.2 +42.3 +42.8 +42.5 +42.8 +43.2 +43.2 +43.5 +43.6 +44.0
-44.2 -29.6 -16.0 - 4.0 + 5.5 +18.2 +31.7 +44.8 +57.3 +68.0
26
137
309. 0
..
+43.0
••
Group 17222 Aug.
9-18.
Group 17227
Small spots, not seen on August 16 and 17. Aug. 26- Sept. 2.
220.314 221.429 222.443 223.311 224. 389 225. 360 226.300 227.350 228.326 229. 370 Means
G G G G С G G G G G
7 37 42 46 27 13 11 0 0 0
..
27 142 197 245 191 87 60 0 0 9
9 32 28 26 15 7 6 0 0
36 119 130 142 103 45 32 0 0
0
12
125.4 0.0 126. 5 +1. 3 127. 7 +2. 7 127.9 +3.1 127.4 +2.7 128. 3 +3. 8 128.0 +3.7
+23.1 +22.9 +22.3 +22.4 +22.3 +21.9 +22.2
-69.' 1 -53.2 -38. 6 -26.9 -13.2 + 0.6 +12.7
. .
. .
8
130. 7
+7. 0
+21.6
+56. 0
62
127. 7
..
+22.3
••
237.365 G 238.374 G 239.305 G 240.308 G 241. 379 G 242.649 G 243.311 G 244.451 G
7 46 37 5 4 7 2 0
Means
..
Variable spots with a b r i e f maximum on August 27. 27 185 189 36 23 39 9 11
4 26 19 3 2 4 1 0
17 103 98 18 12 23 6 11
292.9 293.7 293. 1 294. 9 291. 9 292.4 295. 7 295.7
0.0 +0.9 +0. 4 +2. 3 -0. 6 +0.1 +3.4 +3.6
+19.8 +20.1 +20.2 +20.1 +20.1 +20.2 +19.0 +19.1
-36.2 -22.1 -10.4 + 4.7 +15.8 +33.1 +45.2 +60.2
7
36
293. 8
..
+19.8
••
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 62
- NON-RECURRENT GROUPS OF SUNSPOTS
LEDGER II.
Projected Area
Date U. T. Place
Corrected Area
Longitude and Proper Motion
ole le Umbra Wh° Umbra f Spots Spots
Latitude
Long, from C.M.
Projected Area
Date U. T. Place
.. .
238. 374 239.305 240.308 241.379 242.649 243.311 244.451 245.317 246.294 247.609
G G G G G G G G G G
A small spot with one or two unstable companions.
Means
14 19 16 26 36 28 11 9 5 0
64 85 80 105 151 133 57 41 27 5
..
о
24
109
20 12 16 20 16 6 6 4 0
88 60 65 85 75 34 26 21 5
246. 1 247. 5 250.0 250. 3 252. 5 252.9 253-0 253. 4 253.0 251.7
12
57
251.0
о
о
0
0. 0 +1. 5 +4.1 +4. 4 +6. 7 +7.2 +7.4 +7. 9 +7.5 +6.3
-18. 2 -18.4 -19.3 -19.1 -19.3 -19.3 -18.8 -18.5 -18.4 -18.2
-69.7 -56. 0 -40.2 -25.8 -6.8 + 2.4 +17.5 +29.4 +41.9 +57.9
..
-18.8
••
Aug. 29-Sept. 4. A close pair of spots, coalescing and dying out near the central meridian. G G G G G G G
9 27 32 32 36 32 14
55 121 171 214 237 175 68
Means
Whole Umbra _ Spots Spots
Latitude
Long, from С. M.
0
247.609 248. 318 249. 302 250.309 251.301 252.312 253.380
G G G G G С G
45 41 46 41 27 26 5
255 250 259 202 136 138 27
Means
0
о +27. 6
о
39 30 29 23 15 14 3
223 182 159 113 73 74 15
140. 2 +0. 2 139.9 +0.1 140. 5 +1. 1 140. 8 +1. 8 140. 1 +1. 4 139.2 +0.9 138.9 +1.0
+27.4 +27.5 +27. 6 +27.6 +27.5 +27.7
-53.6 -44.5 -30.9 -17.3 - 4.9 + 7.5 +21.3
24
133
140.0
+27.5
..
Group 17240 Sept. 5-14. A few small spots, with a backward d r i f t In longitude.
Group 17230
240.308 241.379 242.649 243.311 244.451 245.317 246.294
Longitude and Proper Motion
Group 17236 - continued
Group 17229 Aug. 27-Sept. 5.
Corrected "Area
19 31 25 21 21 17 7
117 140 132 143 137 94 36
211.9 0.0 211.1 -0.5 211.0 -0.2 211.1 +0.1 211.0 +0.3 210. 5 +0. 1 210. 1 -0. 1
+26. 1 +26.0 +25.7 +25.5 +25.4 +25.1 +25.0
20
114
211.0
+25.5
..
-78.3 -65.0 -48.3 -39.4 -24.5 -13.5 - 1.0
247.609 248. 318 249.302 250.309 251.301 252.312 253.380 254.334 255.341 256.349
G G G G G С G G G G
11 9 2 18 23 22 11 5 0 0
63 57 30 73 109 103 50 14 5 7
Means
16 10 2 13 15 13 6 3 0 0
91 6l 26 53 71 63 30 9 4 6
129.6 129. 9 127.0 124. 7 123 V 7 122.9 122.2 120.2 119.7 119.5
8
41
123.9
0.0 +0. 5 -2.1 -4. 1 -4.8 -5.2 -5.6 -7.3 -7.5 -7.4
-24.3 -24.1 -25.1 -25.8 -26. 0 -26. 4 -26. 7 -27.4 -27. 6 -26.7
-64. 2 -54.5 -44.4 -33.4 -21.3 -8.8 + 4.6 +15.2 +28.0 +41. 1
-26.0
Group 17235 Sept.
2-8.
A stream of changing spots not seen on September 7. Group 17242
244.451 245.317 246.294 247.609 248.318 249.302 250.309
G G G G G G G
Means
16 14 18 4 7 0 2
93 100 86 23 61 0 32
20 12 12 2 4 0 1
120 87 59 13 32 0 16
167.6 168. 8 168. 3 168. 2 167. 3
0.0 +1. 2 +0. 8 +0. 7 -0. 1
+17.6 +17.1 +17.5 +17.1 +17.5
-67.9 -55.2 -42.8 -25.6 -17. 1
167. 1
-0. 2
+18.3
+ 9.0
••
..
7
47
167. 9
..
+17.5
Group 17236 Sept.
3-11
A small regular spot,
with a distant companion
except on September 8, 9 and 11.
245.317 G 246.294 G
18 28
100 159
(47 38
259 226
143.0 140.5
0.0
+27. 5) +27.4
-81.0 -70. 6
Sept. 11-20. A stream of small spots, of which the leader Is the only stable component.
253.380 254.334 255.341 256.349 257. 332 258.402 259. 319 260.311 261. 309 262. 325 Means
G G G G G С G G G G
2 37 57 69 70 32 27 14 7 0
..
11 144 276 397 321 177 138 79 45 5
2 23 32 36 36 17 16 10 7 0
9 92 155 209 167 97 83 57 43 7
67. 4 68. 6 69. 4 67.9 68.7 69. 6 71.1 71.4 70. 1 70. 1
0. 0 +1. 4 +2. 3 +1.0 +1.0 +3.1 +4.7 +5.2 +4. 1 +4. 2
18
92
69. 4
..
+22.5 +22.8 +22.7 +23.0 +22.5 +21.8 +21.0 +20.9 +21. 7 +20.2
+21.9
-50.2 -36.4 -22.3 -10.5 + 3.3 +18.3 +32.0 +45.3 +57.2 +70. 6
GREENWICH PHOTO-HELIOGRAPHIC RESULTS. 1955. LEDGER II. Projected Area
Date U. T. Place
Corrected Area
™»" Sots' «
Longitude and Proper Motion
- NON-RECURRENT GROUPS OF SUNSPOTS
Latitude
Long, from C.M.
Projected Area
Date U. T. Place
0 0 0 2 0 0
36 0 0 11 0 5
0 0 0 1 0 0
20 0 0 8 0 7
0
6
0
105.7
0
0.0
0
110.6 +7.1
+31.3 .. .. +28.8 .. +28.2
108.2
+29.4
. . . .
. .
108.3 +3.9 ..
. .
о
+ 0.7 .. +42.9
0
279.351 280.468 281.424 282.342 283. 362 284.365 285.466 286. 367
G G G G G G G G
9 7 8 9 60 51 20 0
100 67 78 71 279 236 100 9
Latitude
Long, from C.M.
5 4 4 5 45 54 38 (0
52 35 43 43 211 246 193 32
15
84
О
0
130.7 +4.1 128.2 +1.8 127.9 +1.7 128.3 +2.2 129.4 +3.5 129.9 +4.2 129.9 +4.4 126.0
+23.3 +22. 1 +22.0 +22. 1 +21.7 +22.3 +22.5 +21.7)
129. 1
+22.2
о
- 4.1 + 8.2 +20.5 +33.0 +47.5 +61.3 +75.8 +83.8
+71.5
Means Means
Longitude and Proper Motion
Group 17254 - continued
Sept. 12-17. Intermittent. A wide pair of spots on September 12; a single spot on September 15 and 17. G G G G С G
Corrected Area
^°1е «•"»* Sots Umbr* Spots
sTtS
Group 17243
254. 334 255.341 256.349 257.332 258.402 259.319
С 63
Group 17256 Group 17244 Sept. 15-20 . 257.332 258.402 259. 319 260.311 261. 309 262.325
G С G G G G
Oct. S-9.
A stream or small spots.
32 18 14 10 5 16
109 123 108 57 30 50
Means
19 12 10 9 6 37 16
72. 5 0. 0 72.2 0.0 71.6 -0.4 72.6 +0.9 70. 1 -1. 3 71.0 -0.2
65 78 77 51 35 115 70
71.7
..
-24.9 -24. 6 -24.4 -24. 6 -24.5 -25. 6
+ 7.1 +20.9 +32.5 +46.'5 +57.2 +71.5
-24.8
274.434 275. 337 276.362 277. 337 278. 352 279.351 280.468 281.424
G G G G G G G G
A small spot, not seen on October 7 and 8. 4 9 7 4 4 0 0 0
31 27 34 22 11 0 0 36
Means
11 13 6 3 2 0 0 0
87 38 31 16 7 0 0 19
118.0 117.7 0.0 117.5 0.0 117.3 -0.1 117.3 +0.1
+21.3 +21.3 +21.3 +21.0 +21.1
-81.7 -70.0 -56.7 -44.1
113.6 -3.2
+22. 3
+ 6.2
3
14
1 16. 5
+21.4
-30.7
Group 17249 Sept. 25-30 267.639 268.307 269.342 270.340 271.301 272.409
G G G G G G
0 0 0 0 20 2
4 0 0 8 156 11
..
Means
Oct. 6-14. A small spot, with one or two close variable companions. 0 0 0 0 11 1
4 0 0 4 84 6
.. .. 227. 1 +1. 3 225.4 -0.3 223. 1 -2. 5
+17.9 +21.1 +22.1
2
16
225.4
+19.'7
226. 1
0. 0
..
+17.6
-63.2
..
-26. 6 -15.6 - 3.3
Group 17254 Oct. 1-14.
273.317 274.434 275.337 276. 362 277.337 278.352
G G G G G G
Group 17258
A few f a i n t spots, not seen on September 26 and 27. 278.352 279.351 280. 468 281.424 282.342 283. 362 284.365 285.466 286. 367
G G G G G G G G G
Means
0 54 27 40 37 36 13 7 0
9 227 169 203 176 98 58 22 16
..
0 32 15 22 20 22 9 7 0
6 134 93 112 98 60 41 21 19
14
65
110.4 0.0 111.0 +1.0 113.0 +3.5 110.0 +0.9 110.8 +2.1 1 10. 6 +2. 4 110.2 +2.4 110.5 +3.2 107.1 +0.2
+28.8 +29.9 +29.7 +29.8 +29. 7 +29.0 +29.3 +29.3 +27.9
-37. 6 -23.8 - 7.0 + 2.6 +15.5 +28. 7 +41.6 +56. 4 +64.9
110.4
+29.3
••
A group of variable spots.
7 4 4 11 13 8
27 25 13 72 53 85
Group 17260 27 6 4 8 7 4
103 38 13 52 32 46
129.6 .. 127.5 0.0 127.0 -0.3 129.9 +2.7 131.2 +4.2 129. 0 +2. 2
+22. 6 +22.1 +22.2 +22.0 +21.7 +22.2
-84.8 -72.2 -60. 7 -44.3 -30.2 -19.0
Oct. 7-15.
279.351 G 280.468 G 281.424 G
A stream of small spots, not seen on October 13. 4 15 38
36 67 156
9 19 35
109 89 143
57. 6 0. 0 57.0 -0.5 56. 7 -0. 7
-19. 1 -19.1 -18.7
-77.2
-63.0 -50.7
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 64
- NON- RECURRENT GROUPS OF SUNSPOTS
LEDGER II.
Projected Area
Date U.T. Place
™« ZU
Corrected Area
Longitude and Proper Motion
««- sss
Latitude
Long. from C.M.
о
о
Projected Area
Date U. T.
Place
282.342 283.362 284.365 285. 466 286.367 287.426
G G G G G G
35 20 13 0 9 2
125 100 84 0 71 18
Means
Latitude
Long, from C.M.
Group 17265 - continued О
26 12 7 0 5 1
91 61 47 0 40 11
56.0 -1.4 55.5 -1.8 56. 1 -1. 1
13
66
-18.7 -18.7 -18.5
-39.3 -26. 4 -12.5
57. 1 +0. 1 55.2 -1.8
-18.8 -19.1
+14.9 +26.9
56. 4
-18.8
..
Longitude and Proper Motion
Umbra Wh° l e Umbra ^ole Spots Spots
Group 17260 - continued 0
Corrected Area
. .
0
295.311 296. 374 297. 365 298.541 299. 417 300.364 301. 366
С G G G G G G
26 22 20 9 9 4 0
107 • 106 110 53 46 18 9
Means
0
0
19 13 11 5 5 2 0
79 65 62 28 24 10 6
239.2 +0.9 239.0 +0.9 238. 9 +1. 1 238. 7 +1. 1 238. 6 +1. 2 238.6 +1.5 238. 8 +1. 9
0
+24.0 +23.8 +23.8 +23.6 +23.5 +23.5 +23.4
-45.1 -31.2 -18.3 - 3.0 + 8.5 +21.0 +34.4
10
52
238. 9
+23.8
Group 17261 Oct.
8-14.
A small spot with companions on October 12. Group 17269
280.468 281.424 282.342 283. 362 284. 365 285.466 286.367
G G G G G G G
Means
9 9 11 11 9 0 0
33 40 40 27 25 9 7
16 10 9 8 6 0 0
58 45 34 19 16 5 4
51.4 0.0 49.9 -1.3 49. 9 -1. 0 49. 3 -1. 4 47. 4 -3. 0 48. 0 -2. 2 51.7 +1.7
-24.3 -24.5 -24.3 -24.8 -24.8 -22.5 -23.3
..
..
7
26
49. 7
-24.1
-68.6 -57.5 -45.4 -32. 6 -21.2 - 6.1 + 9.5
Group 17264 Oct. 19-30. A stream, In which the leader Is the f i r s t to die out. The follower breaks up Into a cluster for a few days and dies out b e f o r e reaching the limb. 291.544 292. 331 293. 297 294. 295 295.311 296. 374 297. 365 298.541 299.417 300.364 301.366 302.367
С С С С С G G G G G G С
Means
18 30 53 68 73 82 94 68 57 31 22 8
1)8 173 255 321 452 466 466 418 343 199 111 44
..
34 36 43 45 41 43 49 36 32 20 18 9
222 208 209 212 256 242 242 223 192 127 89 49
258.7 258. 2 258. 8 259. 3 258. 9 260.1 258.2 255. 8 253.7 253. 8 254. 9 254. 0
0.0 -0. 4 +0. 2 +0. 8 +0. 5 +1.8 0.0 -2. 3 -4.4 -4. 2 -3. 0 -3. 8
+19.1 +18.5 +18.3 +18.8 +18.8 +18.7 +18.4 +18.8 +19.1 +19.0 +19.1 +19.3
-75. 2 -65. 4 -52.0 -38.4 -25.4 -10.1 + 1.0 +14. 1 +23.6 +36.2 +50.5 +62.8
38
189
257.0
..
+18.8
••
Oct. 24-Nov. 5. A stream of small spots, which by November 1 has developed Into a normal bl-polar group. 296.374 297.365 298. 541 299.417 300. 364 301. 366 302.367 303. 362 304.371 305.355 306.429 307.312 308.383
G G G G G G С G G G G С G
4 28 53 61 62 58 113 90 172 106 66 42 7
Means
24 154 335 318 351 369 448 424 873 570 422 216 44
..
8 30 39 39 36 32 63 52 110 80 69 65 ( 16
46 163 247 201 20 1 205 249 246 558 431 427 332 103
194. 5 196. 0 198. 7 200. 1 200. 4 198. 8 197. 4 196. 6 196.5 195. 4 194. 2 194. 7 189. 9
0. 0 +1. 9 +5. 1 +6. 9 +7. 6 +6. 4 +5. 4 +5. 0 +5.4 +4. 7 +3. 9 +4. 8 ..
+28.0 +29.2 +29-7 +29.5 +29. 3 +29.5 +29.4 +29.4 +29.2 +28.9 +28.9 +29. 0)
52
276
196. 9
..
+29.0
304.371 305. 355 306.429 307.312
G G G С
75 44 40 21
420 255 189 102
50 36 46 39
A small slowly-diminishing regular spot.
292.331 С 293. 297 С 294.295 С
2 13 21
94 100 90
239.9 .. 238.8 0.0 239.6 +1.0
277 207 217 192
199.4 0.0 199.8 +0.8 200. 4 +1. 9 200.6 +2.4
+29.5 +29.3 +29. 1 +28.9
+34. 6 +48.0 +62. 8 +74. 6
193.2 191.7 190. 8 190.6 189. 9
+29. 2 +29.0 +28.9 +28.8 +29.0
+28.4 +39.9 +53.2 +64.6 +78.0
Spot b
Oct. 20-29.
7 19 20
-75.7 -61.2 -43.0 -30.0 -17.2 - 5.6 + 6.2 +18.5 +31.7 +43.6 +56. 6 +68. 7 +78.0
Spot a
Group 17265
26 64 94
+27.1
+23.9 +24.3 +23.9
-83.7 -72.0 -58.1
304. 371 305.355 306.429 307.312 308. 383
G G G С G
97 62 26 21 7
453 315 233 114 44
60 44 23 26 16
281 224 210 140 103
0.0 -1.1 -1. 5 -1.4 -1. 6
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. LEDGER II.
Projected Area
Date U. T. Place
Corrected Area
e Umbrse ""°^- ... Spots
Longl tude and Proper Motion
Whole Spots
- NON-RECURRENT GROUPS OF SUNSPOTS
Latitude
Long, from С. M.
Projected Area
Date U. T. Place
.. .
Whole Umb Spots
Whole Spots
One or two small spots , not seen on October 27.
Oct. 2&-NOV. 1. G G G G С G G
Corrected Area
4 0 2 13 26 18 8
22 0 13 62 141 88 40
Means
о
5-12.
308. 383 309.435 310.586 311.536 312.363 313.409 314.481 315.306
G G G G G G G С
0
0.0
+26. 9
-12.8 +10.1 +22.3 +35.8 +48.2 +62. 0
2 0 1 7 17 14 9
12 0 7 36 94 70 45
228.9 227.7 226.7 227. 0 226. 3 226. 8
-0.5 -1.1 -0. 5 -0. 8 +0. 1
+27.0 +27.9 +28.4 +27.8 +28.2
7
38
227.2
..
+27.7
..
121 255 234 249 167 62 31 10
..
Means
32 34 22 26 19 7 2 0
126 188 141 136 90 35 19 7
18
93
Long, from C. M.
310.586 G 311.536 G 312.363 G 313.409 G 314.481 G 315.306 С 316.327 С 317. 479 G 318.594 G 319.372 G 320. 301 С
22 40 35 37 28 34 32 26 18 13 4
136 218 202 184 193 178 163 105 81 31 19
39 44 29 26 17 20 19 16 13 11 5
о
о
0
о
13.8 14.3 15.0 14. 7 14. 4 14.0 13. 7 13. 3 13.0 12.8 12. 7
0.0 +0.9 +2.0 +2. 1 +2. 3 +2.3 +2. 4 +2. 5 +2.7 +2.8 +4. 1
-29.2 -29.4 -28.9 -28.8 -28.8 -28. 6 -28.4 -28.6 -28.8 -28.9 -28.8
-69.0 -56.0 -44.4 -30.9 -17. 1 - 6.6 + 6.6 +21.3 +35.7 +45.8 +57.9
1.0 358.4 358.0 356.7 355.7 354. 6 353. 1 352. 1 351.1 350. 4 350. 1
0.0 0.0 -0.9 -1.4 -2. 2 -3. 2 -3. 7 -4.2 -4. 6 -4. 5
-29.3 -29.5 -29.3 -29.4 -29. 6 -29.9 -29.9 -30.1 -30.4 -31. 1 -30.8
-81.8 -71.9 -61.4 -48.9 -35.8 -26. 0 -14.0 + 0. 1 +13.8 +23.4 +35.3
241 240 170 127 120 105 96 66 59 26 21
Spot b
A stream of small variable spots.
31 46 37 48 35 13 4 0
Latitude
Spot a о
0
Group 17275
Nov.
Longl tude and Proper Motion
Group 17277 - continued
Group 17271
298.541 299.417 300.364 301.366 302. 367 303.362 304. 371
С 65
54.1 55.2
0.0 +1.1
56. 7
+2. 7
59. 1 +5. 1 61.0 +7.1 60. 7 +6. 8 58. 2 +4. 4 57. 9 +4. 1
-17.3 -17.2 -17.2 -17.6 -17.8 -17.2 -17.5 -17.8
57.9
-17.4
..
-57.8 -42.8 -26. 1 -11.2 + 1.6 +15.1 +26.7 +37.3
310. 586 311.536 312. 363 313.409 314.481 315. 306 316.327 317.479 318.594 319. 372 320. 301
G G G G G С С G G G С
11 44 57 90 96 95 59 31 24 22 6
59 218 295 539 675 657 475 449 215 219 68
59 92 74 83 71 64 37 19 15 15 4
314 456 381 496 500 440 294 269 133 145 50
Group 17278 Group 17277 Nov.
7-19.
A long stream of normal type which Is slowly dying
out as it approaches the limb.
310. 586 G 311.536 0 312.363 G 313.409 G 314.481 G 315.306 С 316.327 С 317.479 G 318. 594 С, 319.372 G 320.301 С 321. 302 С 322.384 G Means
35 88 96 138 150 146 117 64 51 39 18 16 13 ..
208 445 519 778 973 941 755 604 344 281 131 119 53
103 142
589 709
107 117 105
572 664 689
94 72 39 34 29 16 22 29
610 459 365 224 194 110 157 119
70
420
6.1 0.0 5.0 -0.7 5.8 +0.5 1.2 -3.7 2. 4 -2. 0 359.8 -4.2 359.0 -4.6 357.3 -5.8 357.2 -5.4 356. 2 -6. 1 359. 2 -2. 7 4. 0 +2. 6 1. 1 +0. 1 1.1
..
-28.9 -28.9 -28.9 -29.4 -29.5 -29.2 -29.2 -29.9
-76. 7
-30.2 -29.4 -28.5 -29. 6
-65. 3 -53.6 -44.4 -29.1 -20.8 - 8. 1 + 5.3 +19.9 +29.2 +44.4 +62.4 +73.8
-29.4
••
-зо.о
Nov. 8-21. At f i r s t a bl-polar group c o n s i s t i n g of two f a i r s i z e d c o m p o s i t e spots. On November 11 I n t e r m e d i a t e s p o t s appear to form a stream. The leader remains composite but the f o l l o w e r becomes a regular spot by November 13. 311.536 312.363 313.409 314.481 315.306 316.327 317.479 318.594 319.372 320.301 321.302 322.384 323.315 324.446 Means
G G G G С С G G G С С G С G
37 105 195 230 259 237 298 215 226 187 143 123 42 0 ..
264 744 1276 1896 2209 2090 1890 1678 1623 1402 931 829 308 9
( 96 155 196 176 169 135 162 118 129
684 1188 1306 1449 1411 1189 1020 918 926
117 106
877 702
125 64 (0
845 485 17
138
1026
351.0 .. 347.4 0.0 348.0 +0.9 347. 5 +0. 6 347.9 +1.2 347.2 +0.8 346. 3 +0.1 345.8 -0.1 345.4 -0.3 346. 2 +0. 7 344. 6 -0. 7 344.0 -1.0 343.0 -1.8 333.6 .. 346. 1
+24. 7)
+24.3 +24.1 +23.8 +23.4 +24.0 +24. 1 +23. 6 +25. 7)
-79.3 -72.0 -57. 6 -44.0 -32.7 -19.9 - 5.7 + 8.5 +18.4 +31.4 +43.0 +56. 7 +68. 0 +73.5
+24.0
••
+24.8 +24.1 +24.3 +24.0 +24.1
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 66
LEDGER II. Projected Area
Date U. T. Place
Umbrœ
whole
Spots
Corrected Area
Longitude and Proper Motion
Umbra» N*1016
- NON-RECURRENT GROUPS OF SUNSPOTS
Latitude
Long. from С. M.
Date
и. т.
Place
Projected Area Umb
Spots
Corrected Area
Whole Umbra Шо1е Spots Spots
Group 17278 - continued
311.536 312.363 313.409 314.481 315.306 316.327 317.479 318.594 319.372 320.301 321.302 322. 384 323.315
G G G G С С G G G С С G С
37 90 129 136 159 148 184 118 136 106 84 77 21
264 550 777 1156 1598 1454 1117 942 968 857 599 539 171
96 120 115 95 97 81 98 65 79 69 68 87 41
284 732 692 809 975 800 592 518 561 557 485 609 335
Nov. 351.0 352.2 351.8 351.0 351.6 351.6 351.4 351.5 350.9 350.8 350. 6 349.9 350.0
Latitude
Long. from C.M.
Group 17290
Spot a 0
Longitude and Proper Motion
0
0.0 +1.4 +1.2 +0.7 +1.5 +1.7 +1.8 +2.2 +1.8 +1.9 +1. 9 +1.5 +1.8
о
+24.7 +24.3 +23.5 +24. 1
+23.5 +23.2 +23.2 +22.9 +22.3 +22.0 +22.7 +22.4 +21.8
о
-79.3 -67. 2
-53.8 -40.5 -29.0 -15.5 - 0.6 +14.2 +23.9 +36.0 +49.0 +62. 6 +75.0
23-30.
326.454 G 327.291 С 328.600 G 329.290 С 330.275 С 331.088 К 332.408 G 333. 671Mt.V/
Small variable spots.
9 13 18 29 52 20 8 5
39 67 112 149 239 103 39 22
Means
9 10 11 17 29 10 4 4
39 52 69 88 134 56 24 16
12
60
о о 176. 9 0. 0 177.6 +1.0 178.1 +2.0 177. 9 +2. 0
178.2 178.0 179.7 178.0
+2.6 +2.7 +4.9 +3.6
178.0
о
+27.4 +27.0 +27.3 +27.0 +27.0 +27.2 +27.1 +26. 9
о
-56.8 -45.0 -27.3 -18.4 - 5.1 + 5.4 +24.5 +39.5
+27. 1
Group 17291 Spot b 312.363 313.409 314.481 315.306 316.327 317.479 318.594 319.372 320.301 321.302 322.384 323.315 324.446
G G G С С G G G С С G С G
15 66 90 98 89 92 57 66 65 59 44 17 0
194 499 718 594 632 523 394 407 397 321 272 97 9
35 81 77 70 54 52 31 36 38 38 36 18 0
456 614 617 422 386 293 213 224 230 209 220 103 17
341.4 340.4 339.8 339.4 338.7 338. 0 336.9 336. 3 335. 6 335. 5 335. 2 334. 6 333. 6
0.0 -0.7 -1.1 -1.3 -1.7 -2. 2 -3.0 -3. 4 -3. 9 -3. 8 -3. 8 -4. 2 -4. 9
+24. 6 +25. 1
+25.3 +25.0 +25.3 +25.2 +25.3 +25.3 +25.8 +26. 2
+26.3 +26. 0
+25.7
-78.0 -65.2 -51.7 -41.2 -28.4 -14.0 - 0.4 + 9.3 +20.8 +33.9 +47.9 +59. 6 +73.5
Nov. 23-Dec. 3. A stream of small spots In high latitude, of which only one remains by November 30. 326.454 G 327.291 С 328.600 G 329. 290 С 330.275 С 331.088 К 332.408 G 333. 671Mt.W 334.318 С 335.427 G 336. 280 С
4 8 12 37 21 37 15 8 4 0 0
15 44 90 191 254 149 105 22 13 9 4
Means
6 9 10 29 15 25 11 6 3 0 0
22 48 77 152 180 103 72 17 11 9 5
170.1 170.6 167.9 165.1 166. 0 165. 1 164. 1 165.4 164.8 164. 0 162. 4
0.0 +1.4 +0.1 -2.0 -0. 1 -0. 1 +0. 3 +3.0 +3.0 +3. 4 +2. 7
+43.8 +44.0 +44.3 +44.3 +43.6 +43.9 +43.5 +43.8 +43.6 +43.8 +43.9
10
63
166. 0
..
+43.9
-63.6 -52.0 -37.5 -31.2
-17.3 -7.5 + 8.9 +26. 9 +34.8 +48.6 +58.3
GroUD 17283 Nov. 12-23. A stream In which both leader and follower are small regular spots until November 16. Then they b e g i n to break up and the w h o l e g r o u p d i e s o u t b e f o r e r e a c h i n g t h e l i m b . 315.306 С 316.327 С 317.479 G 318. 594 G 319. 372 G 320.301 С 321.302 С 322.384 G 323. 315 С 324.446 G 325.294 С 326.454 G
11 29 61 88 83 69 50 53 38 11 4 0
Means
..
68 287 456 515 474 468 344 337 222 118 33 22
( 42 48 60 62 52 38 26 28 21 7 3 0
260 486 445 367 296 263 183 180 124 73 25 21
297. 4 293.9 0.0 294. 5 +0. 8 295. 1 +1. 5 295.0 +1.5 296. 4 +3. 1 294. 7 +1. 5 295. 5 +2. 5 293. 4 +0. 5 291. 3 -1. 4 291.7 -0.9 290. 2 -2. 2
+20. 6) +21. 1 +21.1
31
224
293. 8
+21.0
..
+20.9 +20.9 +20.2 +20.9 +20.5 +20.7 +21.8 +21.2 +21.5
-83.2 -73.2 -57.5 -42.2 -32.0 -18.4 - 6.9 + 8.2 +18.4 +31.2 +42.8 +56. 5
••
Group 17292 A small spot u n t i l December 3. Nov. 27-Dec. 6. and 5 there Is a p a i r of spots.
330. 275 С 331.088 К 332.408 G 333. 671Mt.W 334. 318 С 335.427 G 336.280 С 337.403 G 338. 381 G 339.390 F
13 16 17 38 23 22 19 45 15 13
Means
..
80 74 87 137 118 131 94 245 114 52
On December 4
30 22 14 25 14 12 10 24 9 9
184 100 72 89 70 72 50 133 68 36
106. 4 105.8 105.0 104. 3 104. 2 104.3 103. 6 100. 9 102. 1 102. 1
0. 0 -0.5 -1.0 -1. 5 -1. 5 -1.2 -1. 8 -4. 3 -2. 9 -2. 8
+22.0 +22.2 +22.1 +22.3 +22.0 +22.1 +21.5 +21.3 +21.0 +21.4
-76.9 -66. 8 -50.2 -34.2 -25.8 -11.1 - 0.5 +11.6 +25.7 +38.9
17
87
103.9
..
+21.8
••
GREENWICH PHOTO-HELIOGRAPHIC RESULTS. 1955. LEDGER II. Projected Area
Date U. T. Place
Corrected Area le
umbrffi Wh° Spots
Longitude and Proper Motion
™~ Zll
- NON-RECURRENT GROUPS OF SUNSPOTS
Latitude
Long, from C.M.
Projected Area
Date U. T. Place
ole
Umbr* If Spots
Group 17295
A p a i r of Dec. 4-12. December 11. G G F С G С G С (..
2
17
4 30 57 26 21 13 0 0
24 147 275 126 113 74 21 9
s p o t s , o'f w h i c h o n l y one r e m a i n s by
Means
2 3 20 33 14 11 7 0 0
10
20 20 98 160 67 59 40 13 7
0
25.4 0.0 26. 0 +0. 6 25.4 +0.1 25.4 +0.1 26.9 +1.6 28. 3 +3. 1 27. 4 +2. 2 29. 0 +3. 8 28. 9 +3. 8
54
27.0
о
о
-16.9 -17.5 -16. 8 -16. 7 -16.9
-63. 9
-17.0
-17.5 -17. 1 -17.3
-50.4 -37.8 -26. 1
-8.9 + 3.2 +16. 7 +30.5 +45.4
Dec.
12-22.
345.434 346.280 347.558 348.281 249. 395 350.281 351.302 352.473 353.331 354.282 355.295
G С G С G С С G С С С
11 15 17 17 11 6 0 4 0 0 0
87 117 95 163 126 59 19 48 6 0 19
Means
60 176 178 109 35 11
7 18 13 14 4 2
36 98 98 64 23 9
0.9 2. 2 3. 3 4. 5 5. 3 6. 5
0.0 +1. 6 +2. 9 +4. 4 +5. 4 +6. 9
-25.7 -24.7 -23.7
..
10
55
3.8
..
-24.1
-23.8 -23.5 -23.4
-24.2 -8.5 + 4.8 +21.0 +32.9 +51.0
Group 17302 Dec. 11-22. A regular spot which begins to break up and die out after December 17.
344. 301 345.434 346.280 347. 558 348.281 349.395 350. 281 351.302 352.473 353.331 354.282 355.295 Means
С G С G С G С С G С С С
13 43 46 78 44 59 98 59 24 17 10 0
92 271 339 425 401 438 468 339 225 117 71 8
Long, from C.M.
о
28 21 15 12
225 16Г, 83 119
7
77
3 0 2 0 0 0
34 11 28 4 0 18
8
69
о
0
0
266. 3 0.0 266. 1 +0.1 266. 1 +0. 5 266. 5 +1.1 266.8 +1.8 265 8 +1.0 263.4 -1.0 262.8 -1.3 263.7 -0. 1
+26. 8 +26. 8 +26. 6 +26. Г, +25.2 +25.6 +26. 2 +25.9 +25.6
-66. 3 -49.4 -39.5 -24.5 -13.9 -2.8 +12.0 +24.2
266. 0
+26. 4
+52. 4
+2. 8
-77.2
+26. 2
265. 4
Group 17305
Dec. 9-14. A small spot, w i t h a f o l l o w i n g companion which dies out by December 14. 12 33 25 24 6 2
ole
Umbr* If Spots
Latitude
-17. 1
Group 17301
С G С G С G
Longitude and Proper Motion
A few f a i n t spots, not seen on December 21.
Means
342.279 343.373 344.301 345.434 346.280 347.558
Corrected Area
Group 17304
О
337.403 338. 381 339.390 340. 279 341.469 342.279 343.373 344.301 345.434
С 67
32 53 41 53 27 34 55 34 15 12 9 0
226 333 305 289 245 250 262 193 142 84 64 11
281.5 280. 5 280. 6 280. 1 280.3 279. 4 279. 6 278.9 278.9 278.4 278. 1 278. 3
0.0 -0. 7 -0. 4 -0. 5 '-0.2 -0. 8 -0. 3 -0.8 -0.5 -0.7 -0. 8 -0. 3
+24.9 +24.8 +24.7 +24.8 +24.6 +24.3 +24. 5 +24. 6 +24.8 +24.4 +24.5 +24.3
30
200
279. 6
..
+24.6
-77.0 -63.0 -51.8 -35.4 -25.7 -11.9 - 0. 1 +12. 7 +28. 1 +38.9 +51. 1 +64. 7
Dec. 13-25. approaches 346.280 347. 558 348. 281 349. 395 350.281 351. 302 352.473 353.331 354. 282 355. 295 356. 536 357.395 358.391
С G С G С С G С С С G G G
A single elongated the limb. 17 69 84
109 367 422
87 107 84 82 50 50 59 45 22 2
512 533 512 449 370 351 314 173 98 13
Means
spot, s l o w l y d y i n g out as It
40 77 75 62 68 50 48 30 32 44 44 29 5
256 411 376 364 341 302 260 222 225 232 168 130 31
256. 3 256. 3 256.3 255.6 255.3 254.5 253.7 253.2 252.7 251.8 251.1 250.9 250.0
0. 0 +0. 7 +1.1 +1.0 +1.1 +0.9 +0.7 +0.7 +0.7 +0.3 +0.3 +0.6 +0.2
-31.2 -31.1 -31.1 -31. 3 -31.5 -31.8 -31. 8 -32.2 -32.2 -32. 6 -32.5 -32. 5 -32.4
46
255
253.7
..
-31.9
-76. 1 -59.2 -49. 7 -35.7 -24.4 -11.7 + 2.9 +13.7 +25.7 +38. 2 +53.9 +64.9 +77.2
Group 17309 A b l - p o l a r group, In which the leader becomes a Dec. 18-30. double spot and Is the f i r s t to die o u t . The f o l l o w e r soon becomes regular In o u t l i n e and survives to the limb. 351.302 352.473 353.331 354.282 355. 295 356. 536 357.395 358.391
С G С С С G G G
0 22 77 163 184 186 130 87
8 125 413 848 1008 890 781 573
0 22 59 103 102 97 68 47
16 122 315 530 563 463 406 311
190.8 193.2 192. 3 192.7 191.9 191.9 191.3 191.0
0.0 +2.4 +1.6 +2.0 +1.2 +1.3 +0.7 +0.5
-17.8 -17.3 -17. 1 -17. 1 -17.2 -16. 5 -16. 7
-16. 4
-75.4 -57.6 -47.2 -34.3 -21.7 - 5.3 + 5.3 +18.2
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 68
LEDGER II. Pro J í:cted Ar
Date U. T. Place
ea
Corrected Area
Longitude and Proper Motion
Umbra __ Umbrae „ Spots Spots
- NON-RECURRENT GROUPS OF SUNSPOTS
Latitude
Long, from С. M.
Projected Area
Date U. T. Place
Corrected Area
Umbra „ Umbra f ole Spots Spots
Group 17309 - continued 359.340 360.290 361.277 362.424 363.289
С С С С С
75 61 31 25 8
422 324 211 111 38
Means
о
45 42 27 33 21
252 223 181 147 101
190. 189. 188. 187. 187.
51
280
190. 6
20-26.
353.331 354.282 355.295 356.536 357.395 358. 391 359.340
С С С G G G С
3 -0. 2 9 -0. 6 0 -2. 4 2 -3. 2 8 -2. 6
о -16. 8 -17.4 -17.7 -17.7
-17.6
0
+30.0 +42. 1 +53.2 +67. 5 +79.5
-17.2
A wide pair of spots, not seen on December 22. 0 О 0 8 4 7 4
19 19 0 52 68 92 19
Means
(0 0 0 5 2 4 2
28 21 0 34 40 51 11
171.7 167. 1
0. 0
21-26.
354.282 355. 295 356.536 357.395 358.391 359.340 Means
С С G G G С
166. 8
+0. 1
2
26
12 35 52 43 22 19
Dec. 24- 1956 Jan. 2. Tiny spots, which by December 30 have become a pair of regular spots which die out before reaching the limb.
357.395 358.391 359.340 360.290 361.277 362.424 363.289 364.278 0. 604 1. 420
G G С С С С С С G G
7 4 13 23 17 14 30 54 29 4
22 26 63 82 82 100 161 249 109 26
о
о
6 3 8 13 9 7 19 39 31 8
18 18 38 46 45 57 99 182 118 45
137.7 135.6 136.7 136.7 136. 8 135.8 135.0 135.4 136.1 136.9
0.0 -1.9 -0.7 -0.6 -0. 3 -1.1 -1.8 -1.2 -0.3 +0.6
14
67
136.3
..
о
+20. 3 +19.9 +21. 1 +21.1 +21.2 +22. 1 +22.2 +22.4 +21.5 +21.2
о
-48.3 -37.2 -23.6 -11. 1 + 2.0 +16. 1 +26.7 +40. 1 +58.3 +69.8
-67. 8 -59.9
167. 7 +1. 2 171.7 +5.4 172. 4 +6. 3
+22.9 +23.0 +21.5 +22.2
-30.4 -18.3 - 1.1 +12. 1
169. 1
+22.7
Dec. 28- 1956 Jan. 8. A small stream, led by a regular spot, which dies out before reaching the limb.
361.277 362.424 363.289 364.278 0.604 1.420 2.401 3. 598 4.474 5.471 6. 286 7. 523
One or two small variable spots. 2 6 10 13 4 4
Long, from C.M.
+22. 4) +23.8
Group 17313 Dec.
Latitude
Group 17314 о
Group 17311 Dec.
Longitude and Proper Motion
5 7 8 9 3 2
29 41 46 30 14 12
152.0 0.0 154. 5 +3. 1 153.1 +2.4 157.8 +7.6 158. 2 +8. 6 158. 2 +9. 1
+34.3 +33.0 +33.8 +32.1 +32.0 +32.1
6
29
155.6
+32.9
..
-75.0 -59.1 -44.1 -28.2 -14.6 - 2. 1
Means
+21.3
Group 17318
Means
С С С С G G G G G G С G
4 21 29 50 37 28 33 15 13 13 6 6
17 107 142 288 192 203 140 74 97 65 30 35
(14 30 29 39 22 15 17 8 8 8 5 7
58 151 143 219 115 113 74 40 56 43 23 41
17
93
52. 9 51.4 0.0 50. 7 -0. 5 50. 1 -0. 9 50. 6 -0. 1 51.3 +0.7 52.2 +1.9 51.2 +1.1 51.7 +1.8 50.8 +1.1 50.7 +1.2 50.6 +1.4
-22. 6) -23.3 -23.6 -23.9 -23.9 -23.7 -23.1 -23.0 -22.6 -22.5 -23.2 -23.6
51.0
-23.3
-81.9 -68.3 -57. 6 -45.2 -27.2 -15.8 - 2.0 +12.8 +24.8 +37. 1 +47.7 +63.9
••
ROYAL GREENWICH OBSERVATORY
Total Areas of Sunspots and Faculœ Projected and corrected for foreshortening for each day, and
Mean Areas and Mean Heliographie Latitude of Sunspots and Faculœ for each rotation of the sun and for the year
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 70
TOTAL AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE YEAR The time (U.T. ) at which the photograph was taken is expressed by the month, day of month, and decimal of a day, reckoned from Greenwich mean midnight. The place where the photograph was taken is indicated in the second column. A photograph taken at Qreenwich is indicated by the letter Q, and those taken at the Cape, Kodaikanal, Mt. Wilson and Freiburg, by the letters C, K, M t . W and F respectively. The projected area is the area as it is measured on the photograph, uncorrected for the effect of foreshortening and expressed in millionths of the Sun's apparent disk. The area corrected for foreshortening is expressed in millionths of the Sun's visible hemisphere.
Projected Area
U. T.
February
1. 400 2.424 3.420 4.470 5.406 6.410 7.295 8.456 9.301 10.453 11.391 12.415
Projected Area
и. т.
Place Umbrae
1955 d January 1.285 2.286 3.283 4.282 5.282 6.334 7.279 8.286 9.491 10. 282 11.283 12. 279 13. 282 14. 503 15. 283 16. 285 17. 483 18.419 19. 457 20. 284 21.342 22. 328 23. 273 24. 287 25.378 26.410 27. 504 28. 425 29.400 30.491 31.439
Area Corrected for Foreshortening
С С
с с с с с с G С С С С G С С G G G С
с с с с G G G G G G G
G G G G G G С G С G G
G
102 75 48 26 104 222 268 301 322 260 274 238 196 162 119 117 86 56 26 4 4 4 6 58 51 52 49 39 52 112 134
100 139 127 134 112 52 57 44 46 70 56 37
1016
if Spots
Faculae umbrae
634 416 291 174 572 1143 1695 1781 1723 1613 1620 1319 1185 860 788 650 588 274 151 19 25 31 25 256 342 282 294 269 299 609 692
647 681 716 747 599 300 277 322 374 448 351 196
0 353 340 299 412 0 255 359 593 574 408 652 633 291 615 696 285 492 238 276 230 192 366 125 0 130 512 591 297 373 377
64 56 48 39 74 133 247 262 251 190 199 175 171 117 86 95 90 79 73 7 4 3 4 36 31 54 51 34 35 83 81
338 113 113 276 716 493 674 499 662 756 558 593
54 78 78 102 134 73 85 33 37 56 45 27
ole
^ Spots
398 307 297 264 422 691 1532 1591 1358 1213 1173 973 966 674 569 526 617 386 426 34 26 24 16 156 211 303 292 228 204 443 448
364 383 438 626 758 404 391 256 299 353 269 163
Umbra*
Faculae
0 330 341 375 492 0 459 456 563 526 385 621 703 441 516 638 292 725 491 494 267 169 325 122 0 292 569 568 279 533 431
409 146 88 322 845 743 860 582 613 760 544 764
1955 d February 13.396 14. 293 15.422 16. 404 17. 381 18.458 19.401 20.402 21.296 22. 374 23. 292 24. 310 25. 522 26. 296 27. 356 28. 375 МнгсЬ
1. 375 2.383 3.381 4.373 5.368 6.432 7.304 8.377 9.381 10. 361 11. 376 12. 368 13.675 14. 383 15. 533 16. 522 17.371 18. 387 19. 345 20.388 21.353 22.402 23. 356 24. 343 25.638 26.302 27. 320
G С
G С G G
42 19 9 17 2 0 0 0 17 45 68 89 116 97 116 100
G G G G G G С G G G G G G G G G G G G G G С G G G С С
79 58 35 26 26 13 6 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
G
G G G G G С С С
с
Wfr° l e Spots
Area Corrected for Foreshortening
Faculas Umbrae
^ ole Spots
Faculœ
201 425 90 1011 31 861 63 486 11 271 0 61 0 0 0 377 106 351 274 627 445 750 562 647 583 348 602 174 596 517 578 263
31 15 9 12 1 0 0 0 51 59 75 72 73 57 64 55
161 72 31 48 6 0 0 0 320 360 497 453 380 359 334 322
497 958 844 563 400 95 0 346 396 786 923 628 407 228 555 272
389 315 192 123 108 57 30 48 8 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
45 36 22 18 22 17 14 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
223 192 123 84 93 75 72 47 10 15 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
369 529 568 540 316 327 326 361 422 422 0 202 218 188 508 261 258 267 0 156 413 323 434 480 0 0 0
271 511 609 466 260 286 203 315 345 308 0 150 180 176 466 231 231 194 0 88 339 305 380 493 0 0 0
GREENWICH PHOTO-HELIOGRAPH:с RESULTS, 1955.
С 71
TOTAL AREAS OF SUNSPOTS AND FACULJE FOR EACH DAY IN THE Y E A R Projected Area U. T.
1955 March
April
May
d 28. 349 29.357 30. 352 31.354
1.357 2.360 3.315 4.302 5.333 6.356 7.381 8.347 9.340 10.317 11.303 12. 350 13.620 14. 330 15. 504 16. 363 17. 322 18.311 19. 325 20. 361 21.321 22. 322 23.321 24.316 25:306 26.310 27.320 28.313 29.315 30. 349 1.375 2.329 3.297 4.315 5.323 6. 568 7.322 8.387 9.330 10. 315 11.398 12.303 13.411 14.311 15.277 16. 330 17. 467 18.303 19. 316 20. 326
Area Corrected for Foreshortening
Projected Area
Area Corrected Tor Foreshortening
U. T. о1е
Umbrae
|* Spots
0 0 16 18
0 43 82 102
Faculœ Umbrœ
Шо1е
Spots
Faculœ
1955 G
Ü G G
G G С С С G G С G С С G
G G G G G С G G G G G G G
С С С G G G G G G G G G
С С G G G G G G G G G G G
16 4 7 18 35 67 105 55 13 10 0 0 0 0 13 11 4 0 0 0 8 5 0 2 0 0 9 33 56 65
66 60 75 72 73 49 39 4 0 0 5 2 0 0 0 11 40 46 66 129
49 36 22 87 169 399 578 276 85 63 9 0 0 0 63 61 45 7 0 0 42 29 0 18 0 0 42 161 359 316
291 269 350 390 358 302 164 27 0 0 32 18 0 0 0 54 224 281 416 687
160 205 571 742
355 267 246 126 148 229 161 373 690 195 148 0 157 358 421 280 689 436 490 428 471 76R 95 0 124 569 1199 726 777 518
0 0 170 617 710 820 617 508 166 50 0 0 645 734 748 474 132 187 399 564
0 0 17 15
0 51 86 82
157 235 603 758
11 2 4 11 22 44 73 47 11 12 0 0 0 0 7 6 3 0 0 0 5 3 0 1 0 0 17 46 54 49
43 24 13 53 105 269 400 253 79 72 14 0 0 0 51 41 41 7 0 0 26 16 0 10 0 0 78 226 344 239
521 305 288 97 147 258 150 417 833 216 228 0 232 402 588 526 889 422 557 505 538 739 120 0 229 521 1294 827 948 502
43 36 66 65 65 37 27 2 0 0 3 1 0 0 0 17 38 52 52 84
191 166 355 373 333 227 114 16 0 0 20 12 0 0 0 79 209 273 337 459
0 0 452 762 665 802 668 608 246 126 0 0 647 858 941 674 133 200 516 617
May
June
.
July
Umbrœ
15ole Spots
Faculœ Umbrœ
248 205 268 152 123 139 107 158 101 83 46
1131 1350 1427 952 725 743 508 865 678 464 240
730 371 411 604 1300 884 384 361 492 401 229
19 14 9 22 44 62 43 35 23 37 80 121 153 220 236 369 340 256 269 235 175 80 11 0 0 0 0 9 21 46
138 99 35 100 245 354 250 171 117 222 533 761 960 1202 1329 1905 2118 1801 1664 1639 1251 527 85 0 0 0 0 69 185 357
127 137 140 130 165 175 116 69 45 34 45 24 34
625 734 803 891 898 865 715 401 279 258 371 169 208
^ ole Spots
Faculœ
151 122 166 109
700 804 884 665
641 426 596 692
ЮЗ 152 69 101 61 50 30
596 779 358 547 419 282 166
1391 978 603 313 477 573 472
378 791 1063 406 476 190 0 0 0 257 1060 1134 1110 610 711 412 931 956 560 746 1454 1502 567 370 0 388 432 289 359 920
14 12 12 23 35 42 26 20 13 71 106 121 123 146 137 209 192 162 175 182 165 125 33 0 0 0 0 40 36 75
106 86 45 115 196 261 152 101 72 501 784 769 775 808 771 1097 1184 1085 1083 1248 1205 849 248 0 0 0 0 303 314 556
409 789 1126 524 576 241 0 0 0 603 1549 1231 1205 603 730 547 1003 971 444 762 1522 1709 1052 518 0 467 515 521 636 1213
702 989 416 735 763 904 748 1143 1201 1581 1000 1140 841
130 117 98 83 104 115 74 47 33 23 27 14 19
655 635 565 575 575 600 462 280 198 175 213 103 123
872 1010 436 1038 999 1067 740 1243 1357 1849 1073 1303 979
d 21.319 22.310 23. 307 24. 367 25.302 26. 302 27. 396 28. 324 29. 354 30.302 31.307
G G G G
L 304 2. 307 3.095 4. 366 5.349 6. 303 7.330 8.427 9.607 10.315 11.321 12. 482 13.302 14. 344 15.515 16. 300 17.315 18.273 19. 359 20.341 21. 310 22. 311 23. 360 24. 564 25. 402 26. 339 27. 373 28.414 29. 489 30.318
G G К С G
1.528 2.312 3.438 4. 336 5.331 6.300 7.305 8.315 9.339 10. 330 11.325 12.312 13.320
G
G С С G G G
с; с G G G G G G
С G G G G
С С G G С G G
G G G
G G
С G G G
G G G G G G G G G
GREENWICH PHOTO-HELIOGRAPH:с RESULTS, 1955.
С 72
TOTAL AREAS OF SUNSPOTS AND FACUL/E FOR EACH DAY IN THE YEAR
Projected Area Place
U. T.
Umbras 1955
July
016
W" Spots
Faculse Umbrae
e
^°]; Spots
и. т.
1955
ü G G G G G G
1. 336 2.335 3.420 4.433 5.352 6.424 7.267 8.302 9.314 10. 429 11.443 12.311 13- 389 14.360 15.300 16. 350 17.326 18. 370 19. 335 20. 307 21. 362 22.318 23. 343 24. 321 25. 364 26. 365 27. 374 28. 305 29.308 30.379 3 1. 649
G G' G G G G G G G G G G С G G G G G G G
Septerrber 1. 311 2.451 3.317 4.294 5.609
47 21 7 5 0 37 44 9 14 0 0 5 0 7 15 18 57 57
186 67 25 14 0 162 188 80 86 0 0 19 5 60 106 133 361 279
959 1196 781 905 1095 778 941 313 499 0 0 235 133 217 470 395 773 794
30 13 4 3 0 43 62 10 25 0 0 8 0 12 15 14 34 32
113 43 15 8 0 193 239 87 142 0 0 30 14 86 104 104 218 153
901 1175 950 841 1069 856 1208 345 617 0 0 328 356 269 579 446 946 897
G G G G G G G G G G
37 22 12 5 39 107 206 340 463 486 488 440 317 253 164 64 7 18 10 33 32 43 31 2 18 59 149 143 99 109 134
184 163 124 58 186 689 ИЗО 1735 2479 2808 2711 2386 1888 1398 942 436 52 112 119 194 203 244 14/5 30 84 271 760 693 513 507 656
719 661 709 577 985 988 1357 1113 1245 951 858 863 422 492 1278 1032 721 687 454 256 96 330 307 281 335 247 703 736 566 312 836
20 12 8 5 87 116 168 222 269 280 279 261 210 202 177 141 10 10 6 20 25 44 45 2 12 37 106 93 79 87 176
100 89 80 45 448 764 935 1144 1450 1594 1541 1402 1243 1109 1037 905 104 61 65 120 155 249 233 23 58 172 530 447 416 401 875
872 676 697 593 1274 1108 1489 1341 1290 952 855 992 434 502 1369 1207 980 783 570 315 76 396 476 364 382 268 815 882 638 360 885
G G G G G
140 177 234 237 326
803 1039 1172 1213 1573
1167 1477 1470 1255 943
179 162 212 177 229
1003 974 1072 933 1121
1531 1704 1648 1274 1080
С G С G G G G G К G G
G
Projected Area
Area Corrected Гог Foreshortening
Umbras
j*1016 Spots
^no^e Spots
Faculae
Place
Faculaä
d
14. 302 15.336 16.313 17. 313 18.434 19. 667 20. 355 21.528 22.351 23. 336 24. 370 25.423 26. 391 27. 322 28. 339 29. 141 30. 379 31.343
August
Area Corrected for Foreshortening
Faculae Umbras
d
September 6. 318 7. 302 8.309 9.301 10. 312 11. 380 12. 334 13.341 14. 349 15.332 16. 402 17.319 18.311 19. 309 20.325 21.325 22. 323 23. 698 24. 326 25. 639 26.307 27. 342 28. 340 29.301 30.409
G G G G С G G G G G С G G G G G G G G G G G G G G
288 277 202 168 171 95 74 95 76 104 50 41 24 21 16 0 0 9 23 25 22 37 10 28 37
1647 1492 1100 866 856 488 490 462 431 446 300 251 147 107 65 2 0 74 124 99 94 221 137 230 151
1135 1154 1329 749 981 1470 1601 1008 958 853 333 335 668 733 1173 832 550 274 425 708 1357 957 988 1095 1298
198 218 120 100 109 72 59 94 67 56 29 26 19 19 37 0 0 26 29 22 18 27 7 15 109
1156 1205 689 518 542 365 428 456 334 243 175 167 115 100 134 7 0 216 162 87 75 158 94 133 441
1275 1243 1567 825 1068 1423 1695 1205 1180 1134 426 336 735 948 1566 1150 644 279 548 766 1462 1052 1133 1394 1491
October
G G G G G G G G G G G G G G G G G G С С С С С G G G G G G С G
91 174 181 231 197 194 269 209 248 221 218 146 49 9 2 0 0 0 18 32 66 95 167 331 487 556 591 683 705 699 626
376 801 943 1227 1090 1090 1251 1123 1229 925 905 685 247 107 18 0 0 0 118 199 319 458 985 1587 2387 ЗП9 3103 3433 3747 3911 3475
1270 1725 1378 1268 1218 1177 1157 1613 1662 1086 1116 1009 1288 1116 493 931 808 653 493 397 481 708 806 753 932 740 590 769 590 538 1231
143 166 140 148 113 103 157 145 174 150 169 154 120 5 1 0 0 0 34 43 62 94 190 350 400 382 366 426 422 426 397
588 807 714 797 628 584 783 753 836 631 717 722 601 99 11 0 0 0 222 302 309 508 1174 1637 1974 2145 1925 2200 2276 2390 2228
1462 1955 1671 1686 1396 1670 1482 1851 1844 1273 1262 1147 1622 1267 603 927 953 920 775 627 550 903 1060 997 1115 838 573 903 627 653 1434
1. 317 2.434 3.337 4. 362 5.337 6. 352 7.351 8.468 9.424 10. 342 11.362 12. 365 13. 466 14. 367 15. 426 16. 366 17. 364 18. 362 19. 544 20.331 21. 297 22. 295 23.311 24. 374 25. 365 26. 541 27.417 28. 364 29.366 30. 367 31. 362
GREENWICH PHOTO.HELIOGRAPHIC RESULTS, 1955.
С 73
TOTAL AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE Y E A R
Area Corrected for Foreshortening
Projected Area ?lacp
U. T.
1955
Noverrfcer
hole
Umbrae
^ Spots
Faculœ Umbrœ
^ Spots
_ , Faculae
650 483 308 202 167 123 176 272 354 449 470 459 412 451 451 443 318 230 217 166 184 207 269 328 348 443 414 346 345 552
3331 2447 1824 1051 804 690 917 1431 1985 2708 3281 3551 3324 3214 2962 2816 2244 1491 1396 1061 1081 1223 1482 1878 2095 2446 2475 1826 2106 2290
1478 1254 1591 1150 780 943 883 1423 1071 1580 1314 437 982 722 727 1235 1351 1201 959 1118 1232 1034 747 1213 1027 686 454 804 1359 1995
2455 2086 2026 1330 847 471 1109 1895 2324 2422 2433 2540 2292 1996 1814 1791 1532 ИЗО 1524 1537 ИЗО 1047 1052 1170 1198 1397 1584 1687 2066 2055
1746 1497 1656 1467 1079 1192 1156 1816 1352 1711 1241 679 1228 912 938 1193 1340 1379 1127 1643 1525 1079 780 1138 1306 786 581 1036 1622 1974
ole
d
1. 371 2.355 3.429 4.312 5.383 6.435 7.586 8.536 9.363 10. 409 11.481 12. 306 13.327 14. 479 15.594 16. 372 17. 301 18. 302 19. 384 20.315 21.446 22. 294 23.454 24. 291 25.600 26. 290 27. 275 28. 088 29. 408 30.671
G G G С G G G
G G G G
С С G
G G С
С G
С G С G С G С С К G Mt.VC
478 414 338 259 164 84 206 340 377 392 344 337 273 278 284 293 223 171 236 231 192 176 191 203 196 254 261 325 327 493 -
Projected Area
Area Corrected for Foreshortening
UAbrœ
^ ole Spots
^° Spots
Faculœ
382 367 297 375 303 435 235 202 150 125 111 206 201 282 226 301 461 389 367 291 324 284 264 185 113 108 113 155 137 123 160
2121 2222 1790 2294 2237 2028 1501 1315 993 854 1076 1361 1484 1622 1492 1875 2327 2197 1997 1812 1949 1665 1301 1099 783 590 612 897 705 667 839
319 263 167 225 182 277 156 155 139
1882 1596 1009 1359 1352 1302 1015 1036 948
1088 2100 1 1 10 1080 1476 1295 1170 1746 1421
ПО 87 175 188 252 197 201 292 252 265 229 254 173 162 119 74 78 82 124 120 105 109
732 790 1184 1378 1453 1217 1321 1507 1408 1425 1445 1602 1107 782 671 542 427 468 707 605 538 572
1476 826 986 1262 1403 1425 2298 1383 1425 1П7 1018 1339 1308 1729 1124 1844 1385 1433 2044 2273 1698 1527
и. т.
1955 riecenter
d 1. 318 2.427 3. 280 4.403 5. 381 6. 390 7. 279 8. 469 9.279 10. 373 H. 301 12.434 13. 280 14. 558 15. 281 16. 395 17. 281 18. 302 19.473 20.331 21.282 22. 295 23. 536 24. 395 25.391 26. 340 27.290 28. 277
29.424 30. 289 31.27Я
C G
C G G 1C Ci
c: G C G
C C,
c G
C
c G
C C
c
G
G o
C C C
c c. c.
Faculœ Umbrœ
1029 1864 823 893 1308 1267 968 1863 1470 924 476 760 1045 1352 1369 1981 1119 1056 966 899 1166 1180 1484 1023 1322 937 1259 1822 1964 1358 1431
1е
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955.
С 74
MEAN AREAS OF SUNSPOTS AND FACULJE FOR EACH ROTATION OF THE SUN, FROM 1964
DECEMBER 22
TO 1956
JANUARY 7
The mean, areas have been formed by taking the means of the areas for each day of observation throughout each rotation of the Sun, the projected areas being the areas as measured on the photographs and expressed in millionths of the Sun's apparent disk, and the areas corrected for foreshortening being expressed in millionths of the Sun's visible hemisphere. The rotations adopted in the following table (which is in continuation of those for the years 1873-1954 printed in the Greenwich Observations for 1884 and succeeding years) correspond to the synodic rotation of the Sun, and the commencement of each is defined by the coincidence of the assumed prime meridian with the central meridian, the assumed prime meridian being that meridian which passed through the ascending node of the Sun's equator on the ecliptic at mean noon on January 1, 1854, and the assumed period of the Sun's sidereal rotation being 25.38 days. The numeration of the rotations is in continuation of Carrington's series (Observations of Solar Spots made at R e d h i l l by R. C. Carrington, F.R.S.), No. 1 being the rotation commencing 1853 November 9. The dates of commencement of the rotations are given in U.T.
No. or Rotation
1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368
Date of Commen cement of each Rotation
1954 1955
Mean of Dally Areas
No. of Days on which Photographs were taken
27
Decenber 21.63 January 17.96 February 14. 30 March 13. 63 April 9.93 May 7. 18 June 3. 39 June 30. 59 July 27. 80 August 24.03 September 20. 28 October 17. 57 Novenber 13. 87 Decenber 11.18
28 26 28 27 28 27 27 27 27 28 27 27 28
Projected
Corrected for Foreshortening
Umbrœ
Whole Spots
Facul se
Umbrae
Whole Spots
Faculae
118 60 36 13 23 72 107 53 139 130 94
694 340 197 69 118 402 661 300 788 681 472 2007
281 408 364 263 414 486 587 749 723 875 1070 910 1121 1350
91 51 27 9 19 51 84 41 100 101
537 290 156 52 104 284 536 227 572 538 385
304 478 416 296 480 561 709 847 819 996
355 318 193
1905 1139
78 281 234 142
1270 1104 1271 1594
1612 1405
846
MEAN AREAS OF SUN3POTS AND FACULJE FOR THE YEAR
The mean projected areas are expressed in millionths of the Sun's apparent disk. The mean areas corrected for foreshortening are expressed in millionths of the Sun's visible hemisphere.
Mean or Dally Areas Year
1955
No. of Days on which Photographs were taken
365
C.B.H. 32048 - Wt. 3843 - Dd. 327 - 560 - 1/59
Corrected for Foreshortening
Projected Umbra
Whole Spots
Facula
Umorœ
Whole Spots
Faculae
125
715
684
96
553
794
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, i9ss. MEAN HELIOGRAPHIC
LATITUDE
FROM 1954
OF SUNSPOTS FOR EACH ROTATION
DECEMBER 22 TO 1966 JANUARY
С 75
OF THE SUN,
7
The numbers given in the accompanying table have been formed as follows: The heliographic latitude of each spot for each day has been multiplied by its area (corrected for f o r e s h o r t e n i n g ) , and the sum of the p r o d u c t s , for spots north of the equator, has been divided by the sum of the corresponding areas to form the mean heliographic latitude of spotted area north of the equator; s i m i l a r l y for spots south of the equator. In forming the mean heliographic latitude of entire spotted area, the algebraic sum of the products for spots north and aouth of the equator has been divided by the sum of the areas; and for the mean distance from the equator of all spots the numerical sum of the products,! without regard to the sign of latitude, has been similarly divided. The mean areas have been formed by dividing the sum of the daily areas (corrected for foreshortening) by the number of days of observation for each rotation of the Sun and are expressed in millionths of the Sun's visible hemisphere.
No. Of Rotation
1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368
Date or Commencement or each Rotation
1954 December 1955 January February March April May June June July August September October November December
No. or Days on which Photographs were taken
27 28 26 28 27 28 27 27 27 27 28 27 27 28
21. 63 17.96 14.30 13.63 9.93 7. 18 3.39 30.59 27.80 24.03 20.28 17.57 13.87 11. 18
Spots North or the Equator
Spots South or the Equator
Mean or Dally Areas
Mean Heliographie Lati tude
Mean or Dally Areas
Mean Heliographie Latitude
455 169 95 44 62 221 69 124 260 398 319 829 882 490
29.97 29.83 20.02 23.80 29.78 26. 14 29. 11 29.22 18. 69 27.73 23. 16 24.75 24.51 24.00
82 122 61 8 43 63 467 103 312 139 66 782 523 357
23. 76 22.73 21.81 24. 96 31.36 25.64 23.52 29. 88 22.07 22.75 22.13 24. 17 15.06 23.32
Mean Heliographie Latitude or Entire Spotted Area
о
+21.79 + 7.78 + 3.63 + 16. 18 + 4.78 +14. 59 -16.71 + 2. 38 - 3.53 +14. 66 +15. 35 + 1.01 + 9.79 + 4.06
Mean Distance Ггот Equator оГ all Spots о
29.03 26. 85 20.72 23.99 30.43 26.03 24.24 29. 52 20.53 26.44 22.98 24.47 20.99 23. 71
MEAN HELIOORAPHIC LATITUDE OF SUNSPOTS FOR THE YEAR
Year
No. or Days on which Photographs were taken
1955
365
Spots North or the Equator
Spots South or the Equator
Mean or Dally Areas
Mean Heliographie Latitude
Mean or Dally Areas
325
25.39
228
Mean Heliographie Latitude
. Mean Heliographic Latitude or Entire Spotted Area
Mean Distance rrom Equator or all Spots
о 22.35
+5.71
24. 14
Blank page retained for pagination
ROYAL GREENWICH
OBSERVATORY
Observations of Solar Filaments and Solar Flares Made with the Spectrohelioscopes in the year 1955
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955
Blank page retained for pagination
OBSERVATIONS OF SOLAR FILAMENTS MADE WITH THE SPECTROHELIOSCOPES IN THE YEAR 1955 The following observations relate to dark filaments visible on the Sun's disk in the light of Ha. in the immediate v i c i n i t y of sunspots*.
Measures of line-of-sight velocity are taken w i t h the "line-shifter", whose scale from 0 - 1 0 divisions = 0.37 A. = 17 km./sec. at Ha.. The zero of the Ha. line is determined from measures of the darkest part of the line in an undisturbed portion of the Sun near the centre of the disk. The purpose of the observations being to locate large line-of-sight velocities*, measured displacements are i n t e r p r e t e d as being due to Doppler effects. The probable error of a single measure of line-of-sight velocity, as determined from a number of successive readings, is about 3 km./sec., including the probable error of the zero determination. Three or four measures being generally made on each filament, the probable errors of the tabulated values in the third column of the following table do not usually exceed 2 km./sec., except, perhaps in the case of the larger v e l o c i t i e s , which have accordingly been rounded off to the nearest 5 km./sec. In the following table, the headings of which are self-explanatory, are given of each dark filament as follows (1)
particulars
The measured line-of-sight velocity in km./sec., + indicating motion away from the observer and - motion towards the observer. Where two values are given it is to be understood, unless otherwise stated in the footnotes, that different velocities were observed along the length of the filament, and that the tabulated values are the extreme velocities measured, which in nearly all cases correspond to the opposite ends of the marking. In those cases in which one end of a f i l a m e n t , showing progressive v e l o c i t i e s along its length, appeared to touch a sunspot, the l i n e - o f - s i g h t v e l o c i t y observed at that extremity of the filament is printed in italics.
(2)
(a) The apparent length of the filament in minutes of arc, read by means of a scale inserted in the field, or from a drawing. An asterisk denotes that the marking was small and roughly c i r c u l a r in shape. The d i a m e t e r s of these circular markings are of the order of 10".
* An analysis of the line-of-sight velocities of dark Ha. markings near sunspots, observed at the Royal Observatory, Greenwich, 1930-33, is given in Monthly Notices, 94, 472, 1934. A further paper on the characteristic motions of such filaments associated with solar flares appears in Monthly n o t i c e s , 102, -2, 1942.
ĐĄ 80
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, 1955. (b) The apparent least distance in minutes of arc from the centre of the nearest sunspot or group of spots. In those cases indicated by dots in the appropriate column it was not possible to obtain a measure. (c) The position of the filament relative to the group of associated sunspots or to a single component of the group. In cases where a sunspot has been so designated in the Ledgers in the preceding Results, the appropriate letter a (the leader of the group) or ò (the follower) has been added. The abbreviations n, s, f, p, c, stand respectively for north, south, following, preceding, central.
(3) Particulars of the associated group of sunspots, abstracted from the General Catalogue, including the longitude Crorn the Sun's central meridian at the time of observing the filament (deduced from the mean longitude of the sunspots). Notes have been added of unusual features seen at the time of observation. Filaments which were apparently descending into sunspots with progressive velocities and which showed a definite curvature of shape are also noted.
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, i9ss. OBSERVATIONS OF SOLAR
FILAMENTS MADE W I T H THE SPECTROHELI OSCOPE
Dark. Ho. Filaments
Réf. No.
Date and Time U. T.
IN THE Y E A R
Associated Group of Sunspots
Length
Least Mce lf from Sunspot
D
Position relative to Sunspot or Group
Number of GroUP
Longitude rom /
Central
Meridian
Latl
-
Area
MÏlïl«
/
/
+ 6 -23 - 2 to +90 -28 to +21 -29
1. 5 0.5 1.0 1.5 0.5
0. 6 0.5 .. 2.0 0.2
/ s f n p
17164 72 72 72 88
o +28 +18 +43 +45 -27
d Feb. 1. 42 27.13
o -23 +19
248 212
May 21.38
+25
378
-48 to +59 +34 -31 to +19 -30 to +65 -18 to +34
0.2 1.3 0. 7 0.8 2. 3
.. 0. 4 0. 3
f n c
1.5
p
17192 94 96 99 98
-38 +23 -31 -18 +11
May 29.23 30.61 June 8.68 12. 7 16.59
+30 +25 +32 -25 -24
144 22 93 33 381
+29 to +130 -9 -35 to +18 -111 to +34
0. 6 2. 2 0.8 1. 4 1.3
2. 0 .. 0.5 0. 2 0.3
s/ c c c c
17198 98 98 98 203
+11 +14 +22 +22 -33
June 16.59
~24
381
July
4.94
-32
222
-21 to +47 -42 to +88 - 7 to +60 + 6
0. 6 0. 4 0. 2 2. 6 ..
f p c s sf b
17203 04 04 03 04
-6 -30 -18 +19 +8
July
4.94 6.70
-32 +32
222 193
-125 to +73
0. 5 1.3 1. 6 1. 5 2.5
4.94 6. 70
-32 +32
222 193
7. 8 7. 9 8. 1 15. 1 9. 4
- 5 - 1 to +70 - 4 -38 to +76 -31 to +35
0.3 1.1 1.3 1.0 1. 2
1.5 0.6
f b f b
6. 70
+32
193
c c
+8 +8 -33 +42 -29
July
.. ..
17204 04 06 12 20
10.85 17.46 Aug. 10. 59
+26 -26 +16
56 36 358
9.6 13.0 7. 8 10. 5 9. 4
+ 1 -19 to +68
0.2 .. .. 1.7 0.2
c c c f c
17221 21 21 20 26
-34 -31 -22 - 2 -33
Aug. 10.98
-22
680
+28
1.0 1. 6 1.1 1.2 0.7
+16 +43
358 137
-52 to +59 -36 to +25 + 5 +12 +28
1.3 1.0 2.5 0.3 0. 6
.. 0.3 1.4 2.0 0. 7
c c f f p
17226 33 33 34 37
-32 -65 -55 -48 +52
Aug. 27.89 7. 50
+43 +27
137 328
6.95 2.5
-21 -22
96 333
5.1 1.0 2.7 0.2 1.2
1.8 0.3 2. 8 0. 5 1.5
s f f f n
17234 33 33 42 33
- 8 -15 -15 -35 +64
Sept. 6.95 7.50
-21 +27
96 328
+22 +27
92 328
1.3 1.6 1. 2 0.8 0. 4
1.7 0.3 0. 2 0.2 1. 7
n c c c /
17233 44 44 53 67
+64 +6 +62 -75 -45
Sept. 7.50 14.9
+27 -25
328 70
Oct. 7.04 28.89
+22 ~22
428 751
d h Feb. 3 14. 1 28 11. 2 Mar. 2 9.6 2 12. 5 May 19 8. 1
6 7 8 9 10
May 26 June 1 6 11 17
11 12 13 14 15
June 17 17 18 18 July 2
16 17 18 19 20
July
21 22 23 24 25
July
7 7 8 20 Aug. 8
26 27 28 29 30
Aug. 8 8 9 10 25
31 32 33 34 35
Aug. 25 10.9 Sept. 2 14.0 3 8. 2 3 8. 3 6 8. 8
36 37 38 39 40
Sept. 6 6 6 12 12
41 42 43 44 45
Sept. 12 9.2 15 8.0 19 13.8 Oct. 1 9.0 25 12. 1
1 2 3 4 5
Measured Нпе-оГ-slght Velocity km. /sec.
С 81
7.8 8.0 8. 5 8. 4 9.7 10. 5 15.5 6. 6 6. 6 9.9
4 10.6 4 10. 6 5 8. 2 6 9. 1 7 7. 5
8.8 9. 0 9. 0 9. 1 9. 2
-110
-39 to +50 +29 to +117
+ + + +
4 1 1 9 1
+ 3 -71 to +88 -51 to +79 -42 + 9
10.59 27.89
15.03 7.50
GREENWICH PHOTO.HELIOGRAPHIC RESULTS, i9ss.
С 82
OBSERVATIONS OF SOLAR FILAMENTS MADE WITH THE SPECTROHELIOSCOPE IN THE YEAR
Dark ffa. Filaments Réf. No.
Date and Time U.T.
46 47 48 49 50
d h Oct. 27 11.8 28 9.9 28 10.0 28 10.1 29 9. 9
51 52 53 54 55
Oct. 29 31 31 Nov. 14 14
56 57
Nov. 16 Пес. 19
Meas ured llne-o f-slght Velo city km. / sec.
Associated Group of Sunspots Length
-
Least Position Distance relative from to Sunspot Sunspot or Group
Centm
rrom
Meridian Passage
entrai
Area
°
17267 69 70 67
- 6
28. 89
-22
1. 5
с
69
- 7
29.93
+29
751 276 422 751 276
17272 67
-70 +33
Nov. 3. 74 Oct. 28.89
+22 ~22
182 751
Nov. 14.92 12.4
+24 +17
1026 238 1026 470
0
+• 2 -16 t о +74 -:>5 +.»9 -47 t о +53
3.0 1. 7 1.2 0.5 1.0
1.0 0. 2 1.2 1.0 0.2
fi
9. 6
+ 1
3.0 0.3
0.6 0.8
/ /
с с p с
67 78 84
Oct. 28.89 29.93 30.53
" ьиае
/ с f с
0. 5 1.0 0.7 1.7
-18 -20 -28
d
Latl
1. 6 0.3 0.8 0.4 0. 8
2 2 -:29 6
-:!1
Longitude
o
10.0 9.8 10.6 11.0 11.6
11.4
Number of Group
+34 - 6 +28
-22 +29 -24
17278
+20
Nov. 14.92
+24
306
+43
Dec. 16.23
+21
NOTES Ref. No.
2.
Ref. No.
Associated with a flare 1. gave -39 to -47 km. /sec.
A velocity measure at Hh5
28. Further measures at 09Í7 and 09Í8 gave +37 km. /sec . and +62 km. /sec. respectively.
11. Associated with a flare 1.
46.
17. Associated with a flare 1.
52. Associated with a flare 1. follows:
20. A s s o c i a t e d with a f l a r e 1. follows:
Associated with a flare 1. Further measures were as
Further measures were as
07h6 -88 to +25 ton. /sec. 07.7 -47 "
09Í8 -48 to +76 km. /sec. 09.9 -39 to +66 " 55.
Another measure made at 11Ï9
gave ~56 to +70 km. /sec.
OBSERVATIONS OF SOLAR FLARES MADE WITH THE SPEGTROHELIOSCOPE IN THE YEAR 1955 Observations in ĐŻĐ°-light of solar flares, otherwise bright chromospheric eruptions, were be.gun at Greenwich when the spectrohelioscope was installed in 1929. The observed t i m e s of f l a r e s and t h e i r p o s i t i o n s have s i n c e 1935 been regularly communicated to Meudon for incorporation in the Q u a r t e r l y B u l l e t i n on Solar A c t i v i t y published from Zurich under the auspices of the International Astronomical Union. I n v e s t i g a t i o n s made at Greenwich into the r e l a t i o n s h i p s between solar f l a r e s and (l) r a d i o fade-outs (2) geomagnetic disturbances are published in M o n t h l y N o t i c e s 97, 594, 1937; 103, 244, 1943 and 104, 4, 1944. The included t a b l e g i v e s d e t a i l s of f l a r e s observed at the Royal Greenwich Observatory in the year 1955. This table continues the l i s t of flares given in the 1953 volume and preceding volumes s i n c e 1944. The f o l l o w i n g is an e x p l a n a t i o n of the material contained in the v a r i o u s columns: Column 1.
Keference-number of the
flare.
Columns 2, 3 and 4. Date and approximate times (U. T. ) of observation. Times in heavier type denote that the beginning or the end of the flare was actually observed. Columns 5, 6 and 7. Radial d i s t a n c e (in terms of the Sun's apparent r a d i u s ) , l a t i t u d e and longitude from the central m e r i d i a n of the flare when observed. Column 8. The observer's estimate, when it occurs w i t h i n the times of observation, of the time of maximum of the flare. In c e r t a i n cases t h i s t i m e of maximum has been derived from a series of i n t e n s i t y or l i n e - w i d t h measurements. Column 9. Approximate area of the f l a r e , corrected for f o r e s h o r t e n i n g and expressed in millionths of the Sun's hemisphere. A g r a t i c u l e inserted in the f i e l d of view has been used for the measurement of area. Column 10. The magnitude, estimated by the observer, scale 1-2-3, as used in the Q u a r t e r l y B u l l e t i n .
on an a r b i t r a r y ascending
Columns 11 and 12. The h i g h e s t measured value of the l i g h t - i n t e n s i t y (not necessarily obtained at the t i m e of maximum given in Col. 8) e m i t t e d by the f l a r e and the time (U.T.) of the observation. The i n t e n s i t y is expressed as a percentage of the local continuum and is corrected for scattered light in the instrument. W i t h a visual wedge photometer a measure is usually taken of the r a t i o of b r i g n t n e s s of the flare to the brightness of the undisturbed disk, at the central wavelength of Ha. The following apparent central i n t e n s i t i e s (obtained experimentally and uncorrected for instrumental scattering) are assumed at the various p a r t s of the d i s k in order to o b t a i n the a p p a r e n t i n t e n s i t y of the f l a r e in terms of the local c o n t i n u u m :
С 84
GREENWICH PHOTO-HELIOGRAPHIC RESULTS, i9ss. _.,.,„. . Radial Distance
Apparent Central .5 . -x of ru Intensity ла
0.00
to 0.28
23
0.29
to 0.50
24
0.51
to
0. 66
25
0.67
to
0.77
26
0.78
to 0.86
27
0.87
to 0.95
28
0.96
to
29
1.00
The value for the centre of the Sun's disk indicates the presence of scattered light of about 9 per cent; the intensities given in Column 12 incorporate the appropriate correction according to the procedure given in M o n t h l y Notices, 96, 5, 1935. No correction is made for finite slit-width since such correction, for the centre of the //cc-line, is not expected to exceed one or two per cent. In some cases (indicated by italicized figures in Column 12) the measurement of the intensity is made directly with the local continuum. A secondary "line-shifter" (see Monthly Notices, 99, 463, 1939) is used to bring the continuum 15 A.U. from the centre of the Яа-line into the lower half of the field to enable the comparison to be made. A correction to allow for the absorption (15 per cent) of the thick lineshifter is made and the correction for scattered light can then be applied, as in the other cases. Columns 13 and 14. The reference number, in the General Catalogue, of the spot group associated with the flare and the position of the flare relative to the group or, in some cases, a principal component a or 6, as designated in the Ledgers. Column 15. The reference number from the preceding table of line-of-sightvelocity measures of any dark filament observed in close association with the flare.
C.B.H. 32048 - Wt. 38« - Dd. 327 - 560 - 1/59
GREENWICH PHOTO-HELIOGRAPHIс RESULTS, OBSERVATIONS
U. T. of Observation Ref. No.
OF SOLAR FLARES MADE W I T H THE SPECTROHELIOSCOPE IN THE Y E A R
Position
Date
From
To
Um
Radial Dlst.
Latltude о
^
ong
'r°m C. M.
'
U. T. or Max.
Approx. Area of Mag. Flare
о
1955
h
m
1 2 3 4 5
Feb. 28 June 17 17 July 4 4
11 10 12 10 10
18 13 56 05 38
11 10 13 10 10
28 35 15 30 56
.55 .47 .37 .59 .65
19 22 21 40 25
N S S S N
19 W 10 W 0 9F 28 F.
6 8 9 10
July 7 Aug. 10 22 Oct. 25 25
07 10 15 09 11
27 17 25 59 54
07 10 15 10 12
46 43 30 07 35
.48 .17 .90 .83 .81
31 16 20 22 29
N N N N S
6 V 5F 65 V. 55 F 47 F
11 12 13 14
Oct. 25 31 Nov. 14 14
14 09 10 11
15 37 52 32
14 09 11 11
40 58 03 38
.79 .53 .38 .54
28 30 25 17
f N N N
45 F, 22 W 0 30 W
7
С 85
Central Intensity or Ha. (cont. = 100)
U. T.
Int.
h m _
50 175 75 250 100
1 1 1 2 1
10 23 13 00 —
45 79
27 17 25 59 02
100 100 100 280
1 1 1 1 2
07 31 10 36 10 02 12 02
59 42
14 20 09 40
120 150 100
1 1 1 1
14 26
45 40
11 20 10 20 13 00
<07 aO <15 <09 12
—
44 81
-
Associated Spot Oroup Group N
Relative Position or Flare
ReTerence Number or Associated Dark. На.
-
17172 17198 17200 17203 17204
n с с s с
17
17204 17220 17224 17269 17267
с с с s с
20 29 45
17267 17269 17278 17284
с n пр с
_ 52 54 55
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