On the observation of astronomical telescope

The landlord's problem is actually not the telescope, but the reason why the landlord is unfamiliar with the constellation. There are two ways to solve this problem:

1 First of all, be familiar with the bright stars in the sky, such as Polaris and the Big Dipper near the north celestial pole, Xuanyuan XIV in spring, Weaver Girl I in summer, Tianjin IV and Antares. Then get familiar with the bright constellation, and then get familiar with the dark constellation. Finally, we can judge what constellation a certain sky is without looking at the stars when the moon is bright.

This method is the fundamental method.

2. You can use astronomical software such as Stellarium to help you observe the constellations in the local night sky in real time. It can be used to locate the constellation well, so that you can't see many stars when you observe the night sky.

This method is tricky and convenient.