IAO 1998, Теория, 14–16 години — Задача 6

III International Astronomy Olympiad

Условие

In the elliptical galaxy M32 (a satellite of the Andromeda Galaxy) there are about 250 million stars. The galaxy's visual brightness is of $9\,\mathrm{mag}$. If we assume that all stars there have equal luminosities, what would be the visual magnitude of one of the stars in the galaxy?

Решение

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Оригинал в Архива: en1.jpg · официални решения: theosol.jpg