How many stars can be seen in the sky? Detailed answer

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How many stars can be seen in the sky? Detailed answer

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How many stars are visible in the sky?

In books, you can often find a phrase like: "The sky was dotted with billions of stars." In other words, when we look at the sky on summer nights, it seems to us that before our eyes there are countless small luminous points. Therefore, it may surprise you that a person with good eyesight can see only about 6000 stars in the sky without the help of a telescope.

And this does not mean at all that you are able to see them all at the same time: some of them are always hidden behind the horizon line. Therefore, at best, being at a certain point on Earth, you will see only half of them. In addition, evaporation and fog that accumulate near the surface of the Earth hide from our eyes the stars located low above the horizon.

Thus, if you decided to count the stars in the sky, then most likely it would turn out that there are a little more than a thousand of them. If, however, the same sky is photographed with a camera attached to a telescope, the result will be different. You will find that there are many more stars in the photograph than you could see with the naked eye. Using a powerful telescope, you can photograph over 1 stars! After the discovery of a particular star, it is assigned a specific name or serial number.

Long ago, people in different parts of the earth - Arabs, Greeks, Romans, Chinese - gave names to the brightest and most remarkable stars. There are several hundred such stars - with names. Then scientists began to compile catalogs - special lists in which all the stars they noticed were entered. The oldest catalog known to us was compiled in 137 AD. It includes 1025 stars. The modern catalog contains more than 457!

Author: Likum A.

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