IAO 1998, Наблюдения — Задача 2. Visual binary stars
III International Astronomy Olympiad
Условие
...That telescope was christened the Star-Splitter,
Because it didn't do a thing but split
A star in two or three, the way you split
A globule of quicksilver in your hand
With one stroke of your finger in the middle...
Robert Frost, “The Star-Splitter”
Using a school telescope find in the sky and resolve several () binary stars into their components.
Notice the brightnesses and the colours of the components.
Explain the relationship between the brightnesses and the colours of the components.
Решение
Внимание: Непълно решение
The first character of the handwritten example star designation is partly illegible in the source; the source crop is retained without guessing that character. The example explanation and diagram are otherwise present.
The archive supplies one illustrative observation: an orange main component and a white companion. It gives and states: “Main comp is in the red giant evolution phase. The companion is remaining in the main sequence.” The accompanying luminosity–spectral-type diagram is retained below.
Оригинал в Архива: en2.jpg · официални решения: obssol.jpg · допълнителни данни: obs.jpg