IAO 2015, theory, α — Задача 3

*АСТРОНОМИЧЕСКОЕ ОБЩЕСТВО

EURO–ASIAN ASTRONOMICAL SOCIETY

Round Theo

Group α

язык language English

XX Международная астрономическая олимпиада

XX International Astronomy Olympiad

Россия, Татарстан, Казань 15 – 23. X. 2015 Kazan, Tatarstan, Russia

Theoretical round. Problems to solve · 15 октомври 2015 г.*

Условие

3. Close conjunction. Some time after the events described in the previous problem (nobody knows even the order of magnitude how long after – minutes, or hours, or days, or years ...), Venus at the point of eastern elongation came to close conjunction with Mars, which was located near the aphelion of its orbit. At the same time a total lunar eclipse occurred on the Earth.

3.1. Draw the corresponding scheme.

3.2. Explain, which animal (sitting at the same poles) may see this lunar eclipse. (At the very end of your explanation write as answer B+ or B– for the Bear and P+ or P– for the Penguin.) An artistic picture of the observations of the animals is welcome.

3.3. Calculate in which constellation the eclipsed Moon was observed.

3.4. Estimate minimal possible time passed from the situation of the previous problem to the situation of the current one.

Решение

Допълнителен текст от източника

Россия, Татарстан, Казань 2015 Kazan, Tatarstan, Russia

Теми и трудност

Трудност: неоценена.

Слънчева система · Планетни конфигурации · Затъмнения и покрития

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Оригинал в Архива: theo_alpha.pdf