USAAAO 2015, I кръг — Задача 2

USAAAO First Round 2015

Условие

To have a lunar eclipse, the line of nodes must be pointing at the sun. The moon must also be in what phase?
a. New
b. First Quarter
c. Waxing Gibbous
d. Full
e. Waning Crescent

Отговори

Решение

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Оригинал в Архива: 2015-first-round-exam.pdf · официални решения: 2015-first-round-solutions.pdf