Why are there so many stars in the sky?

Who can count the stars in the sky? No one can count. This is due to the fact that there are too many stars in the sky to count.

There aren't many stars we can see right now, about 3,000, and we can't see any of the other stars, of course, too many to count. It's not very difficult to count these 3,000 stars, there is still a way to count them. It's just that instead of pointing to the stars with your hands and counting them one by one, it takes some skill to count the stars.

This technique is to group visible stars into many zones in the sky, and then use imaginary lines to connect the stars in each area to form astronomical constellations. The Big Dipper is 1 constellation, and it consists of 7 stars. Like this, one district, one constellation, one constellation, one constellation, these 3,000 stars can be counted clearly.

But if you think, "I've counted the stars in the sky," you're wrong. Since you only see half of the entire sky, there will be half of it that you will not see, which means that you have at least 3,000 stars to see and not counted. Even if you see the other half of the sky, there are many stars close to the horizon, and they are looming, and it is very difficult to see and identify, so you can't count them.

Some people will say that if you look through a telescope, you can't see clearly, right? But trouble came again, and the stars that were not visible were seen again in the telescope, and the better the telescope, the more stars were seen, and the result was even more innumerable.

The stars we see are all stars in the universe, the sun is also a star, in the universe, the number of stars is difficult to count, because the universe is too big, our earth is in the solar system, our solar system is in the Milky Way, most of the stars we see are stars in the Milky Way, and some are galaxies tens of thousands or even hundreds of millions of light-years away from us. (Light year: unit of length, = light travels in a year, 1 light year is about = 10 trillion kilometers, the exact number is your own calculation:

365 24 60 60 300000) The total number of stars that can be seen with the naked eye is only about 6,000, and the number of stars seen through telescopes is much larger, with the largest modern astronomical telescope being able to see more than 1 billion stars. In fact, the number of stars in the sky is much more than that. The universe is endless, and what modern astronomers see is nothing more than a tiny, tiny part of the universe.

Because there are countless planets, stars, etc. in the universe. Earth is just one of thousands of planets.

This problem is more general, and there are many stars in the universe.

The stars are illuminated by the sun's rays.

So there are stars.

The stars in the sky come from the light emitted by countless stars in the vast universe, stars dozens of light-years or even hundreds of millions of light-years away from the earth shine through themselves, and the light travels at the speed of light.

Then why are there countless stars, but only a limited number of stars can be seen on the earth, and why do the stars twinkle and twinkle, because in the propagation of light, there will be various substances and rays in the universe, which will hinder their transmission, and even many rays will be blocked in the universe before they have even spread to the earth. The light that can reach the earth will make us look like it is flickering due to the influence of the earth's atmosphere or air.

What we see"Heavenly"In fact, it is a vast and boundless cosmic space, and there are a large number of celestial bodies and planets in this space, some of which can shine like the sun, but because they are too far away from our earth, we can only see them at night, and they appear very small, which is what we call stars.

That's not the stars.

That's a different galaxy or nebula!

We can only see it as a bright spot with the naked eye.

There are still very few individual stars that we can see with the naked eye!

The stars we see are not real stars, but their projections on the celestial dome, which is why we look at the stars without feeling which star is far away and which is closer. During the day, the sky is bright, and the light of the stars is darker than the sunlight, so we can't see it.