USA SEPTEMBER
2020
International Day of Light: The Parallel Earth and the Seasons 2020
Parallel Earth to Watch the Season ACTIVITIES TO CARRY OUT AND SEND Perform the Parallel Earth Experience after reading the description of the proposal and submit Table 1 completed with the acquired data and one or more attached images of the experience. If you wish, also send a photograph of a solar clock made by your students.
Table 1. Parallel Earth Data Mirjana Božić
Teacher's name email
bozic@ipb.ac.rs Outdoor Science Education Team Members: Erin Artin, Jelena Popović, Mirjana Božić
School City, Country Latitude, Longitude Day and hour
Boston
Massachusetts, USA
42,41840N
71.10620W
23th September 2020, 2:29 - 2:37 h am
Note: it is very important that the photographs correspond to the place, day and time mentioned in Table 1 Optional: to complete the experience, those professors and students who wish may send photographs of a solar clock made by them. Project launch: March 20, 2020 (equinox) The activity will be open until: September 23, 2020 (equinox) The results are framed within the initiative of the International Day of Light
The photos are recorded in the interval of eight minutes (2:29 - 2:37 h pm) from several directions in order to register the whole DAY NIGHT LINE (terminator). Since September 23 is near the autumn equinox the terminator is along the meridian. One sees that in a very good approximation Sun set line is 60 degrees to the East from Boston and Sun rise line is 120 degrees to the West. It is consistent with the fact that the time of observation was about 8 hours after Sun rise and 4 hours before Sun set in Boston on September 23.
Boston, September 23, 2020, 2:29.36 pm
Boston, September 23, 2020, 2:29.43 pm
Boston, September 23, 2020, 2:29.56 pm
Boston, September 23, 2020, 2:34.17 pm
Boston, September 23, 2020, 2:37.04 pm (Down town Boston is seen in the background)