USAAAO 2018, I кръг — Задача 17
USAAAO National Astronomy Olympiad First Round 02/12/2018-02/16/2018 Time Limit: 75 Minutes · 12 февруари 2018 г. · 1 т.
Внимание: Бележка към темата
The solutions document provides answer letters for all 30 problems and brief explanations for some problems.
Условие
On a Hertzsprung-Russell diagram, where would we find stars that are cool and dim?
A. Upper right
B. Lower right
C. Upper left
D. Lower left
E. Middle
Решение
Answer: B
Оригинал в Архива: usaaao-first-round-exam-2018.pdf · официални решения: usaaao_first_round_2018.pdf