How does the sun form drops 20, and how does the sun form drops

After the universe is large, the most basic matter produced is hydrogen atoms and hydrogen molecules. After billions of years of accumulation, the early nebula clusters were formed. After 1 million years, the center of the nebula cluster will form a gas-like disk with the highest density and highest temperature, and the temperature of this disk will increase for a short time under the continuous contraction of its own gravity, and the nuclear fusion reaction (hydrogen, helium reaction) will begin to occur at about 10 million degrees Celsius, which will form a star.

To put it simply, a large number of gases are constantly approaching the center, causing the internal pressure to increase and the temperature to increase; When the pressure and temperature reach a certain level, hydrogen and helium undergo nuclear fusion reactions. This led to the formation of stars.

Whereas, the sun was formed about 5 billion years ago by circumstances like the one described above.

Cosmic dust is attracted by gravity in space, forming nebulae, and over time, forming protostars, and this mass determines the direction of this star. The mass of the Sun is small compared to those large stars, but as such, the life span of the Sun is much greater than theirs. Some form neutron stars, while others are larger.

In the case of the Sun, over time, it expands and becomes a red giant. How old is a red giant? It's about the distance to Jupiter.

This time is 8 billion years, when the Sun will become a red giant, and then, after a while, **, become a white dwarf, and then burn for 10 billion years, it will end its "life" in a **

The Sun was born from a dying star from the death throes of a nearby star eruption The Milky Way was born 8 billion years ago There have been countless events like this The Sun formed and swallowed up about the mass of the cloud to form what is known as a star.

The reason for the rotation.

The sun is a high-speed rotating object, in the process of rotation, the center of the sun's gravitational field is equal to the edge of the position, if the sun is not round, if it is square, then in the same gravitational field, the surface cover of the sun to the core of the sun (central force field point) is not equal, then it will affect the rotation of the sun, which will cause a very unstable phenomenon, because there is a gravitational field, then a centrifugal force will be generated in the process of rotation, under the action of a centrifugal force, If it is square, then the force at the edge point of it is not the same, there is a force difference between the objects, in mechanics it is relative motion, the final result of the movement under the action of the force difference is the equilibrium state, the force between the edge points of the rotating object tends to be in a balanced state, only in the ball can be reflected, if the sun is square then its surface is very unstable, I think we will not evolve so developed!