798 ROMANIA September 2022

ROMANIA SEPTEMBER 2022

Latitude for travelling and navigate Calculate the latitude of the place determining the height of the Sun at noon (experience 1) and, if possible, determine the altitude of the pole or the Polar star (experience 2) and record the results of each experience in the following Table of Results:

Teacher’s Name

Corina Toma School were taking place the experiment

“Tiberiu Popoviciu” Computer Science High School City and country

Real Latitude

Cluj-Napoca, Romania

46.770 = 46046’

Day, month, hour=midday*

Solar Declination

Latitude by the Sun

1044’

46044’

19 September 13:19:39 Day, month, hour=

Latitude with the pole **

This table with the data and results, and 2 or 3 photos of the experiment, must be sent before September 23, 2022 to newsletter.nase@gmail.com *You can only calculate the latitude with the Sun, when it is at the highest point of its diurnal trajectory, that is, at noon from the Sun. For this reason, the quadrant must be used when the sundial indicates 12 o'clock. **The latitude with the pole can only be calculated if the polar zone is observed from our city, that is, if we are not in the tropical zone or close to it.

We made some measurements at Solar Noon, but of course every student obtained another value. I wrote the average of the measurements for h. In 2 different days the average value was the same. The students understood that the instrument is not very accurate but this method was a very clever one.