Why is it that the night sky of the earth has more stars in summer and few stars in winter?

Why do you see more stars in the summer night sky on Earth than in the winter night sky?

Because the earth we live on is constantly rotating, and the sun, which reflects light from the stars, is also orbiting, what our naked eyes see is of course different in summer and winter. And in the summer, because of the rotation, we can see most of the Milky Way, but in the winter, we can only see a small part of the Milky Way in winter. Therefore, it is said that there are many stars in the night sky in summer, but there are fewer stars in winter.

No matter how the sun and the earth rotate, the position of our Milky Way will not change, and the Milky Way will always be there. The stars that we can see, the stars and planets in the universe, are always there, because the other planets do not rotate and orbit. The earth revolves around the sun all the time, and in the summer months of May and April, it just turns to the position of the Milky Way, and we can see the most dense star scene in the Milky Way.

Then in the winter, our Earth turns to the edge of the Milky Way, so that we see less stars from the Earth. If there are fewer stars in the southern hemisphere, there will be more stars in the northern hemisphere, and this is all relative. Because of the location, the stars you see are also different.

If we have the opportunity to be at the top of the galaxy, then the stars we see will be as bright as light bulbs, and at that time, even at night, there is no need to light the lights, because the light of the stars can illuminate our earth.

But that's just an assumption, because at the center of the Milky Way are old stars, and they have not only light there, but also dangerous black holes, which could pose a threat to our lives if we really had the chance to get there. So I think we still have to cherish the abundance of stars in summer, or the stars in winter, although the number is small and lonely, but it also has a different flavor.

Because it is related to the rotation of the earth, in the summer it faces the side of the center of the Milky Way, so you can see more stars, and in the winter it is the side, so you can see fewer stars.

Because in summer the earth is transferred to the Milky Way**, so there are many stars, and in winter the earth is transferred to the edge of the Milky Way, so there are few stars.

The temperature difference between the earth's winter and summer is relatively large, and there are fewer clouds at night in summer, so you can see more stars, and in winter, you can't see it due to the influence of cold air.

Stars are the planets in the Milky Way. Because the Earth revolves around the Sun, it is right in the middle of the Sun and the Milky Way in the summer, so there will be many stars to see. In winter, the Earth revolves around the Sun and turns to the edge of the Milky Way, so there are very few stars to be seen.

01 In summer, our night sky faces the center of the Milky Way, while in winter it faces outward, and the stars in the Milky Way are unevenly distributed, becoming denser in the middle, so there are fewer stars in the night sky in winter than in summer.

The Milky Way is a huge galaxy with a radius of about 50,000 light-years, and the area around the Milky Way near the center of the Milky Way is densely populated with stars, and the number of stars near the edge of the Milky Way is smaller. The Sun is located about 10,000 light-years from the center of the Milky Way, slightly on the edge of the Milky Way.

Because it takes a year for the earth to revolve around the sun, in summer the earth is turning between the center of the galaxy and the sun, and the widest, densest and brightest central part of the galaxy appears in the sky at night, so there are many stars seen in summer; In winter, the earth turns between the edge of the Milky Way and the sun, and the central part of the Milky Way can only be seen during the day, but because of the strong sunlight during the day, we can't see the stars, and at night we see the thin edge of the Milky Way, where the stars are particularly few, so the stars in the night sky in winter are rarer than in summer.

In fact, it is related to the weather on Earth, and the proposition that "there are more stars on summer nights than on winter nights" is wrong in itself, specifically, it should be that there are more stars in summer nights in the Northern Hemisphere than in winter nights. This is not the case in the Southern Hemisphere, so the above is not quite true. In my opinion, the main reason is that there are more cold and gloomy weather in winter, and the thick clouds block the stars in space.

Moreover, in the northern hemisphere, the pollution is far greater than in the southern hemisphere, and human activities make the night sky not "pure" enough. In such an environment, can you still see the stars?

There are about 100 million star chambers in the entire Milky Way, and they are roughly distributed in an oval shape. In summer, the widest, densest, and brightest part of the Milky Way appears in our sky exactly at night, while in other seasons, this brightest part of the galaxy appears during the day, at dusk, in the early morning, and sometimes near the horizon, so that it is not easy to see it, so we see more stars on summer nights than on winter nights.

On the other hand, there will be fewer people going out at night in winter, and the cold gives people a feeling of loneliness, so the stars are the same in the eyes, but the psychology is much less.