IOAA 2016, Наблюдения, телескоп (OT) — Задача 3. OT3

Observational Examination (OT) · 20 т.

Указания

When you arrive at your observing station, DO NOT disturb the telescope before attempting the first question (OT1).

Условие

The examiner will give you a moon filter, an eyepiece with a cross-wire and a stopwatch. Point the telescope towards the Moon. Attach the filter to the telescope. On the surface of the Moon, you will see several “seas” (maria) which are nearly circular in shape. Estimate the diameter of Mare Serenitatis, $D_{\mathrm{MSr}}$, labelled as “1” in the figure below, as a fraction of the lunar diameter, $D_{\mathrm{Moon}}$, by measuring the telescope drift times, $t_{\mathrm{Moon}}$ and $t_{\mathrm{MSr}}$, for the Moon and the mare, respectively.

Решение

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Оригинал в Архива: telescope.pdf