From Earth's point of view, stars are just dots of light dotted across the night sky. But in reality, they contain an unimaginably large amount of energy.
Despite all the best efforts of mankind, it is still impossible to truly understand the mysteries. Today, let's go through the following five stars. Let's take a peek at their incredibleness!
The largest star known so far is the red supergiant Cygnid. If you replace this guy with a radius of 1,650 times the sun as the main sequence star of the solar system.
Then the eight planets, I'm afraid that at most, they can only stay. Because the other five, including Jupiter, will all be swallowed by it.
Although, in many ways, it is nothing more than an ordinary star. However, once you add that ** speed of up to several million kilometers per hour, it's a different story entirely.
Currently, the fastest star known to mankind is called J0927. It has been estimated that its speed is as high as 8.2 million kilometers per hour. It can circle the earth more than 690 times per hour!
This is long beyond the escape speed of the Milky Way, and it is estimated that it will not take long. He will rush out of the galaxy and spend the rest of his life in the darkness of the universe.
Cepheids are stars that are usually 5-20 times the mass of the Sun. Due to its extremely dense core, it is subject to incredibly high pressures inside. As the size increases, the pressure inside begins to drop. At this point, the Cepheid will shrink again.
This periodical increase in size and size makes it look like a beating pulse. It will continue this cycle until the day of its life.
When a star has a supernovae**, it eventually evolves into a white dwarf. At this time, the stars will become dense and faint. When it runs out of fuel, it will no longer produce any fission reactions.
Over the years, the white dwarf will gradually cool down and eventually stop glowing altogether. And then completely reduced to a black dwarf.
Although it is the final stage of a star's evolution, we can hardly see it with the naked eye. But scientists have always believed in its existence.
Maybe one day in the future, our sun will burn out and eventually become such an invisible black dwarf!
When it comes to stars, I believe that what comes to everyone's mind is a huge and fiery sphere. But in reality, due to centrifugal force, most stars take on a slightly flattened shape with slightly flat poles. It's just that for most stars, this flattening is almost negligible.
But there are also stars that are so flattened that they take on the shape of a rugby ball. This is the shell star.
As a result of their high rotation, the star throws a large amount of material around its equator, forming a gaseous "shell". This is how shell stars get their names.
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