IOAA Jr. 2022, Теория, тест с избираем отговор — Задача 6. The Sun as seen from Saturn
International Olympiad of Astronomy and Space Sciences for Juniors — Romania– Câmpulung Moldovenesc — October 31 - November 7 2022 — Theoretical Round — I. Multiple choice problems – 100 points · 31 октомври 2022 г.
I. Multiple choice problems – 100 points
For these problems, you have to choose only one correct answer. Please write your answer on answer-sheet. Don’t forget to write the number of the problem, i.e Grid 1. (c).
Условие
It is known that: the distance Saturn - Sun is 9.54 times greater than the distance Earth - Sun; the angular diameter of the Sun's disk, seen from Earth, is 32'.
The angular diameter of the Sun seen from Saturn, is:
a) radian
b) radian
c) radian
d) radian
Отговори
- a)
Решение
Since the distance between Saturn and the Sun is 9.54 times greater than the distance from Earth to the Sun, it turns out that the angular diameter of the Sun's disk, observed from Saturn, is 9.54 times smaller than the angular diameter of the Sun, observed from Earth. so that, using the drawing in Figure 1, it results:

representing the angular diameter of the Sun seen from Saturn.
Оригинал в Архива: Multiple_Choice.pdf · официални решения: Grid_1.pdf · допълнителни данни: Grid_2.pdf · допълнителни данни: Grid_3.pdf · допълнителни данни: Grid_4.pdf · допълнителни данни: Grid_5.pdf · допълнителни данни: Grid_6.pdf · допълнителни данни: Grid_7.pdf · допълнителни данни: Grid_8.pdf · допълнителни данни: Grid_9.pdf · допълнителни данни: Grid_10.pdf