USAAAO 2018, I кръг — Задача 7

USAAAO National Astronomy Olympiad First Round 02/12/2018-02/16/2018 Time Limit: 75 Minutes · 12 февруари 2018 г. · 1 т.

Условие

For the following problem, find the range in which the answer lies: looking from Greenwich on February 10th ($s_o = 9^h17^m48^s$) at what time is Pollux ($\alpha = 7^h42^m16^s$) at its upper culmination?

A. 12 am - 6 am
B. 6 am - 12 pm
C. 12 pm - 6 pm
D. 6 pm - 10 pm
E. 10 pm - 12 am

Решение

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Оригинал в Архива: usaaao-first-round-exam-2018.pdf · официални решения: usaaao_first_round_2018.pdf