What determines the radius of the Sun?

Our whole universe revolves around a single star. The radius of the Sun determines its power and weight, and accordingly, and the force of attraction that it has. The structure of the Sun does not differ from any other star of the same class. There are thousands of stars like him, even in our galaxy. But it gives us warmth, light and life.

The Sun, like any other star, was formed from a cloud of hydrogen that was in space. Hydrogen began to collect in the middle of the cloud and heated by friction gravity until the thermonuclear reactor, which the Sun is, started. Hydrogen, which was in the surrounding space, the young star also attracted to itself, and from the heavier elements formed planets and other cosmic bodies. This is the story of the origin of the solar system. It is worth noting that the Earth owes its birth to a supernova, which gave heavy elements for the formation of planets. It is still a young star (according to astronomical measures), the age of the Sun is only 4.5 billion years. And this means that our star will warm us for a long time.

Since in its essence this celestial body is a thermonuclear reactor, its dimensions affect the fuel reserves that it has. That is, the radius of the Sun determines the duration of its life. But do not worry, because, according to the most conservative calculations, hydrogen reserves will last for another 6 billion years, and after that the celestial body will begin to burn helium, which will suffice for several billion more years. And for this time, mankind will either learn other star systems, or think of ways to prolong the life of its star.

Now very many are interested in studying the sun, as it is an inexhaustible source of energy, unlike traditional sources such as coal and oil. Also, scientists are interested in the very thermonuclear reaction that takes place inside the Sun. In fact, unlike nuclear energy, this star gets its energy from the creation of new atoms, and not from decay. The possibility of obtaining such energy under terrestrial conditions could solve many problems, including the problem of environmental pollution.

The stars keep their secrets well, and the thermonuclear reaction remains only a dream. "Daylight", which looks small in the sky, continues to warm us. After all, the radius of the Sun is 109 times larger than the Earth's radius, and hundreds of such bodies can fit inside it, like our planet. But the main "furnace", thanks to which the celestial body shines, is slightly larger than the Earth in size, everything else is the fuel reserves that the star retains due to gravity.

Scientists can not accurately calculate the radius of the Sun, since it does not have the exact shape of a sphere, and measurements in different places can give different results.

But for an average person this does not really matter. Because more joy than just seeing the sunlight in the morning, it is not necessary. This is confirmed by the fact that almost all earthly religions came from the sun worshipers. Even our ancestors knew that the Sun is the main source of life.