Stars are not luminous bodies, why do stars shine

There's a post in it that's dedicated to **.

Why don't you go to Summer Purple's blog and take a look, there should be.

Anyway, I really like to watch it!

The star is not a luminous body divided into upper and lower parts, the upper part is **7, and the lower part may not be there until next year. If you want to see, there are a few blogs in Summer Purple. However, 1--6 is a lot, alas, you should go to the blog of Summer Purple, this is the address.

Maybe I'll post it when I have time, but I'm a little busy, I'm sorry

Some stars emit light mainly because they burn themselves, the most typical of which is the star, because the star produces light and heat energy after the combustion reaction. Some stars cannot emit light on their own, but can reflect the light of the star and make themselves glow, such as the Moon. There are also planets that emit light energy after the material melts, such as comets.

1. Self-luminescence.

There are many stars that emit light because they are burning themselves, so it is generally stars that emit their own light, and the definition of a star is that it emits its own light. There is a lot of fuel inside the star that can be burned, and after a high-temperature reaction, light and heat are generated, and the light energy is radiated to the outside.

2. Emitting light.

There are also many stars that do not have fuel to react to, or are unable to react due to insufficient mass and density, so these planets will use the light energy of the stars to reflect the light and make themselves shine. The most famous of these is the moon, which can shine because of reflected light.

3. Melted light.

Some comets can emit light because the combustible material melts away when it passes through the solar system, and because of the high speed of its movement, the comet appears to be dragging its tail. And the stars you see at night are all stars, and the more intense the burning planet, the stronger the light energy.

The question of why the stars shine was not scientifically answered until the thirties of the twentieth century. The stars we see, most of them glowing stars, like the sun, emit light and heat all the time. These stars are extremely far away from our Earth, and the closest star to us, called Nanmen II, is also light-years away from Earth, that is, light moving at a speed of 300,000 kilometers per second.

Stars have a very large mass, generally in hundreds of billions of billions of tons, there is a large amount of hydrogen and helium in the luminous stars, the internal temperature of the star is extremely high, up to tens of millions of degrees, the pressure is extremely high, under high temperature and high pressure, the hydrogen nucleus inside the star, that is, the proton has extremely high kinetic energy and can cancel the electromagnetic repulsion between the protons, from the thermonuclear reaction of the hydrogen nucleus to the helium nucleus, the hydrogen nucleus combines into a helium nucleus, and the mass becomes smaller, according to Einstein's mass-energy equation E=MC2 This less part of the mass, turned into energy. This nuclear reaction produces a huge amount of energy, which eventually radiates outward in the form of light and heat. The color of the light emitted by the star is related to the surface temperature of the star, with low temperatures emitting red and yellow light, and high temperatures emitting blue light.

The abrupt reaction continues, and the star continuously emits light and heat into the sky until the star runs out of hydrogen.

Because twinkle twinkle twinkle hee hee