Constellation Observatory _ Constellation Detection

It is almost impossible to look at the stars during the day (occasionally looking at the moon or something)

In addition, no astronomical telescope is used to look at constellations. The field of view of the telescope is very small, and there is no need to look at constellations, galaxies and meteor showers, which require a large observation range.

It is also very important: never look directly at the sun with a telescope without a dimmer! ! ! ! !

The commonly used dimming device is Budd film. Only when it is placed in front of the objective lens without cracks can effective protection be formed. Some manufacturers will say that you will get a reduction mirror at the eyepiece and never use it. After the sunlight is focused through the telescope, it will burn the eyes and cause harm to them. I have seen a friend send a photo saying that his filter was burned. So it must be on the objective side.

I don't think I can see anything at Zhongtian in recent years. Many years after transit of venus got it 100, the transit of mercury was too small for ordinary amateur glasses. ISS Zhongtian can try it, or look at sunspots or something.