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Colors are actually colorful, even if we see it as white: 8 interesting and impressive facts about stars

The stars that make the night sky a magnificent place are massive celestial bodies, mostly hydrogen and helium, that produce light and heat in their cores. Except for the sun, all the stars we see in the sky come from the earth. light-years away. They are the building blocks of galaxies that we know number in the billions in the universe. Although it is impossible to know how many stars there are only astronomers In our Milky Way galaxy He thinks there are 200 to 400 billion stars.

Stars that are so far from Earth have been among the most curious subjects of humanity throughout history. Information about the stars Even in the most limited of times, humanity has made various inquiries to achieve more. Let’s take a closer look at the stars that first formed during the “cosmic dawn,” which occurred 250-300 million years after the Big Bang.

The most interesting facts about the stars:

  • Looking at the sky, we can see up to 2000-2500 stars.
  • Stars can have many colors
  • there are too many stars
  • When we look at a star, we actually see it in the past.
  • The bigger a star, the shorter its lifespan.
  • The furthest discovered star is 28 billion light-years away
  • Stars don’t really blink
  • Most stars occur in pairs

Looking at the sky, we can see up to 2000-2500 stars.

It is impossible to see millions of stars in the sky at once on a dark night. The reasons for this are clear enough and enough for us to see them. near they are not. Maximum number of stars a person can see in one night 2,000 to 2,500 will be. With this. this person must have extremely good eyesight and look at the sky on an extremely clear night with no rays from the moon or any other source.

Stars can have many colors

the colors of the stars

The color of the stars we see in the sky can be different colors, from red to white and blue. Stars with high temperatures, such as the Sun, are yellowish-white in color. 12,000 Kelvin stars with temperatures above them So every star temperature and colour connected its concepts.

there are too many stars

We are in the Milky Way approx 200 until 400 billion It is thought to be a star. Perhaps many of them have planets. Throughout the universe, approx 500 billion Each of these galaxies can host as many or more stars as the Milky Way. If we multiply these two numbers together, we get about 2 x 10ˆ23 in the universe. part star turns out to be possible.

When we look at a star, we actually see it in the past.

It is believed that Aristotle was the first scientist to state that the sun’s rays take some time to reach the earth because it is so far away. Light, 300,000 kilometers per second We can’t see the light from the stars that fast. About the time that light from the sun reaches the earth eight minutes takes. Rays from another star, Alpha Centauri, reach Earth approx takes 4 light years, so it is We’ll see what it looked like four years ago. It may even be decades before we see rays from some stars. The telescopes we use to see the stars actually allow us to look into the past. Another surprising fact is that we can still see stars that have been dead for several years. This is also because, It is the continuation of the rays of the stars to reach the earth.

The bigger a star, the shorter its lifespan.

some stars of the sun 150 times It can have so much mass and radiate an extraordinary amount of energy. For example discovered of the most massive stars one about us Eta Carinae is 8,000 light-years away. Studies have shown that this star has 150 times the mass of the Sun and emits about 4 million times more energy. The sun has been emitting energy for billions of years and will continue to exist for billions more, while Eta Carinae is likely only a few million years old. And astronomers see this star as one supernova explosion They think they will live.

The furthest discovered star is 28 billion light-years away

furthest star

The stars we see when we look at the sky have enormous distances. The closest star to Earth is 4.2 light-years away. Proxima Centauri. The light from this star takes more than 4 years to reach Earth. If we try to go with the fastest spacecraft ever developed, 70,000 We will have to travel for more than a year. Like the furthest star James Webb Space Telescope Captured by Earendel. Located about 28 billion light-years from Earth, this star is named after Lord of the Rings of his character.

Stars don’t really blink

Light from a star passes through the Earth’s atmosphere, which consists of many layers of varying densities. All this bends the light, its color and thickness changes. Mainly due to aberrations near the horizon, we see stars as if they are blinking. Like the stars from the Earth’s atmosphere they wouldn’t appear to blink if they could be viewed from an area where they wouldn’t be affected.

Most stars occur in pairs

Contrary to appearances, all the stars appear to be in the sky one by one, but many stars are in pairs they are found. these stars double stars known as. A binary star consists of two stars orbiting a common center of gravity. In addition, some galaxies may consist of three, four or even more stars. But these galaxies are visible from Earth. a single star considered to be.

If you want to view various content about space, you can read how the colors of the planets are actually formed in this content:

You can see the most fascinating space photos, which we didn’t know until today, in this content:

Source: Web Tekno



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