How do astronomical telescopes look at multiple times?

The multiple marks of astronomical telescopes are different from those of ordinary telescopes, and the times of astronomical telescopes are not fixed. In general, the type of telescope you see will add a number, for example, the heavenly king 80/500, or the Dragon Marca 102/1400. The figures behind the product represent the aperture (diameter) of the front lens (large glass) of the telescope. The back is its focal length. Generally, astronomical telescopes will be equipped with two eyepiece. Most of them are equipped with diameter 25mm and 10mm. What will this configuration affect?

Sheng Sheng Photoelectric as an astronomical telescope manufacturer, tells you the greatest impact is the multiple, the sky multiples = focal length / eyepiece diameter. Suppose my telescope is the harp, 130/700, then my multiple is about 700/10=70 times and 700/25=28 times. Now that we know the algorithm, we basically know if I can see all the stars that I bought. You only need to look at the model of the telescope to see if you need it.

What determines the brightness of the telescope?

It is the size of the object lens, the larger the large telescope, the more clear we see. Some astronomical observers want clarity and do not want to take too large telescopes, so the parameters like 80/500 will appear, and this parameter is a popular model for the general telescope.