Why are the stars observed with an astronomical telescope the same shape as the moon

Hello: What kind of telescope are you using? 700 focal length, 60 aperture refractor, 80 aperture, 600 focal length refractor, if you use a 60 700 estimate, you can't see the profit and loss of Venus -- it's very difficult to observe, it takes 80 calibers to magnify about 100 times to see it!

Is your focus adjusted? If you adjust it well, you can see the profit and loss of Venus, you can also look at other planets, Jupiter, or stars, if it is still semicircle, then there is a problem with the quality of your telescope, so to speak, telescopes under 1500 yuan can hardly see (the profit and loss of Venus).

Except for the little star comet, the other planets are round! Because gravity pushes them to shape like this!

It is to see the waxing and waning of planets on earth, such as Venus, the principle is the same as that of the moon, because Venus, like the moon, cannot shine by itself, and it is the reflection of sunlight that we see. Therefore, when we are at different angles from the Sun and Venus, we will see that Venus has the same changes in profit and loss as the Moon.

What you're seeing is most likely Venus.

Try your telescope on the other stars, and if not, you're looking at Venus.

If this is still the case, then this telescope should be smashed.

It's probably because there are non-stellar non-luminous objects blocking one side of the star, and that's very likely, because there are so many of these non-stars.

Personally, I feel that the focus is not adjusted well.

In the general popular astronomical Lingwu leaky telescope, the moon is orange Shen like the picture below

Copy an answer to you--- Is the finderscope installed? If installed correctly: 1

During the day, first aim the primary tube at the target. First, attach a larger eyepiece (i.e., a 20mm eyepiece with a lower magnification). Aim the lens barrel roughly at an object at a distance (at least 500 meters away) and adjust the focus until it is clear.

2.Then carefully adjust the three screws on the finderscope to bring the object you just saw in the primary mirror to the center of the cross in the finderscope. 3.

Replace the eyepiece with a higher magnification (i.e., the eyepiece with a small focal length) and repeat the steps above. When debugging, make sure that the object in your primary mirror is always controlled in the center of the cross in the finderscope at high magnification. In this way, at night, you can first adjust the star you want to see to the center of the finderscope cross, and then turn the primary mirror focus wheel, and you can see the target in the primary mirror.

Once the finderscope is aligned, simply leave it untouched. When observing the moon, try to choose the time of "crescent", because at this time, you can see the crater, the moon sea, etc. more clearly than the full moon, because the sunlight does not completely irradiate the moon, and it is easier to ** crater at the junction of light and dark.