How did the sun form?

Trillions of kilometers thick interstellar dust (mainly composed of hydrogen) in the universe gradually gathers under the action of its own gravity, forming a huge vortex. If you clump matter together and squeeze it to a very small volume, its temperature will inevitably rise, which is a simple law of physics. As these dust and gases are subjected to increasing pressure, the temperature keeps rising.

Over hundreds of thousands of years, nebulae have increased in density, forming huge disk-like vortices (shaped like the Milky Way) that are even larger than the solar system. A very small part of the gas in the center is constantly squeezed by gravity, forming a sphere with super-high density and temperature (the inner core of a nascent star, but it has not yet been ignited). As the pressure increases, a huge column of air ejects vertically from the center of the disc to both ends.

The gravitational pull continues to be intense, and the gas and dust particles are constantly sucked in and squeezed against each other, producing more and more heat, and over the next 500,000 years, the young star will gradually become smaller, brighter, hotter (but it is still not ignited), and the temperature of the stellar region will gradually reach 15 million degrees Celsius. These gas atoms, mainly hydrogen atoms, can only undergo nuclear fusion at astonishing high temperatures and pressures, and exert enormous amounts of energy. As the temperature and pressure of the core hydrogen atoms reach the ignition conditions for nuclear fusion, the core begins to burn and continuously ejects energy outward, and the star begins to glow and heat as a result.

Eventually, the star begins to burn, and the energy ejected from the inner core blows away the stardust around the star that has not yet had time to be sucked in by gravity, and a star is fully formed. The dust and debris that has been blown away may be controlled by the star's gravity again at a greater distance and rotate around the star, and if the conditions are right, the dust will eventually form planets, comets, and other objects that orbit the star. Just like our solar system.

This is true of the formation of all stars, including our Sun.

About five billion years ago, an interstellar dust cloud called the "primordial solar nebula" began to collapse in gravity. As the volume shrinks, the temperature of the core increases, and the density increases. When it shrinks by a million times and becomes a primordial star, the temperature in the core region also rises to about 10 million degrees Celsius.

When the temperature of the core region of this primordial star or fetal star is 10 million degrees higher, the hydrogen fusion reaction is triggered, which is the reaction of the hydrogen bomb**. At this time, a star called the Sun was born.

According to historical research, the Sun was formed by the rapid collapse of a cloud of hydrogen molecules hundreds of millions of years ago, and is the Taurus T star of the first generation of the first star family.

The specific process is as follows:

About 100 million years ago, there was a cosmic great**, in which the basic substances that make up the universe were born, and these substances floated in the air and were continuously aggregated by gravity, and stars appeared;

2. When some massive stars die, there will be a violent **. These stars will also be disintegrated into nebulae floating in the universe in **;

3. More than 5 billion years ago, gravity brought these nebulae together, giving birth to the current solar system and the sun;

4. At the outer edge of the solar system, there is a small star belt called the Cooper belt, and an Omu Rotten Nebula composed of countless stardust surrounds our solar system, and these materials are considered by many to be the material left over from the disintegration of the star in front of the sun.

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.

The sun dog is not just formed by the reflection and refraction of light, but is a bright round object on the halo chakra. On the halo, the sun dog can appear on one or both sides of the sun or moon.

How is the sun formed?

The sun is formed by the substance after the other sun, the law of nature is like this, you **, I form, and then I **, you form again, just blow up and blow up, every time it is fried, the energy runs some, and there will be no conditions for it to be ** again, cold. and darkness are the basis of the universe.

H gathered under the action of gravity to form the primordial sun, and then H underwent fusion to produce some HE, forming the present sun.

Maybe it's just that the gas looks like that in zero gravity.

There are nebulae to say, and there are also big ** to say.