2018年IOAA夜间观测第1题

来自astro-init

英文题目

O5. (10 points) The eyepiece’s field of view is 45°. Please estimate the field of view (with an accuracy of 0.1°) of the telescope when observing.

中文题目

O5. (10分)

目镜的视场为45度,请估计观测时望远镜的视场(精度为0.1°)。