USAAAO 2026, I кръг — Задача 11

USAAAO 2026 - First Round · 9 февруари 2026 г.

Problem writers

Problem writers: Srihari (Hari) Balaji, Vincent Bian, Ferdinand, Hagan Hensley, Elizabeth Lee, Joe McCarty, Lucas Pinheiro, Feodor Yevtushenko

Условие

Four bright stars were erased from the sky map below. All of these stars have magnitudes lower than 3.0. Select the alternative with the four stars that were erased from the sky map.

(a) $\alpha$ And, $\alpha$ CrB, $\beta$ Her, and $\alpha$ PsA.

(b) $\alpha$ And, $\alpha$ Aql, $\beta$ Cet, and $\alpha$ Lyr.

(c) $\alpha$ Aql, $\alpha$ CrB, $\beta$ Her, and $\alpha$ Peg.

(d) $\beta$ Cet, $\beta$ Her, $\alpha$ Peg, and $\alpha$ Oph.

(e) $\alpha$ Aqr, $\alpha$ CrB, $\alpha$ Cyg, and $\alpha$ Her.

Отговори

Решение

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Оригинал в Архива: usaaao_first_exam_2026.pdf · официални решения: usaaao_first_exam_solutions_2026.pdf