Is the Sun the only star in the solar system that shines?

The only star in the solar system that shines is the sun, and the other members are planets, and the planets do not emit light. Thank you.

There are two questions here, 1. What is a star? 2. How to define the solar system?

1. Stars. A spherical or spheroid-like object composed of hot gases that emits light on its own. (Additional note:.)

In ancient times, they were considered to be fixed stars, and they were called stars; But in fact, the stars are not really immobile, but because they are so far away from us, it is difficult for the ancients to detect the changes in their position in the sky without the help of special tools and methods; Today, the name "star" is inherited. ）

2. The solar system.

The solar system is a system of celestial bodies consisting of the sun, planets and their moons, asteroids, comets, meteors, and interplanetary matter, with the sun being the center of the solar system.

Well, the only "star" that can shine in the "solar system" satisfies your question is the sun. Here's why.

Additional note: If you insist on finding faults......The Earth "glows" (volcanic eruptions), but like Mercury, Venus, Mars, and many moons, asteroids, and meteoroids, it is not a gas ball (the surface of Mercury, Venus, Mars, moons, and asteroids is rock and dust, the surface of the Earth is rock and water, and meteoroids and comets are dirty snowballs); Jupiter, Saturn, Uranus, and Neptune, although they are spheres of gas and are also hot, are not yet hot enough to emit light, and we see that their light is reflected from the sun.

The reason why the sun emits light is because there is thermal radiation in the sun, which exists in the form of electromagnetic waves, and if the wavelength of the electromagnetic wave is in the region of visible light, the light can be seen. The color of the light emitted by the object varies according to the temperature generated, and the temperature from low to high presents a process of red, orange, yellow, white, and blue. The surface of the sun is nearly 5,700 degrees Celsius, so the sun we see is generally white light.

To put it simply, it is the heat emitted by the sun, so the light is produced.

As the largest star in the solar system, the sun is releasing a lot of light and heat all the time, and it is precisely because of the sun that the earth we are in has a warm light and life will be formed. If there is no sun, the whole solar system will be dark, the sun is a planet with hydrogen as gas, and the sun is very large, and the earth is next to the sun like a sesame seed next to a basketball. The sun will shine because the high temperature inside the sun makes a large number of hydrogen atoms close to the collision, and the resulting thermal radiation releases energy, a process called thermonuclear reaction, which makes the sun release a very huge amount of energy, and part of the energy is converted into light waves that we can see.

The brightness of the sun is incomparable with our common stars, in the long years of human history, people have not found that the light and heat of the sun have been weakened in the slightest, the sun's huge and lasting energy is the result of the burning of the sun's internal matter, as most people think, but the energy converted by the sun's hydrogen atoms is the source of its huge energy. The hydrogen in the sun can also supply the sun with the same glorious light as it is now for 5 billion years, when all the sun's hydrogen is burned out, and other thermonuclear reactions will continue to occur, so the sun can continue to emit its huge light and heat for more time than we can imagine.

The sun is mainly composed of hydrogen, and under the conditions of temperature and pressure in the sun's interior, hydrogen will undergo a "thermonuclear reaction", which will be composed of four hydrogen nuclei to one helium nucleus. In this reaction, part of the mass is converted into energy, releasing a large amount of heat. Thermonuclear reactions inside the sun are similar to hydrogen bombs on Earth**.

It is precisely because of the "hydrogen bomb" process that is constantly emitted in the sun's core that the light and heat radiated by the sun are continuously increased.

This is due to the continuous nuclear fission and fusion that takes place inside the sun.

Because the sun is a planet dominated by hydrogen, it has a large mass, and it can already shine on its own.

The Sun is not the only planet in the universe that shines.

1. All cosmic stars, supergiants, supergiants, giants, main-sequence stars, dwarf stars, white dwarf stars, and neutron stars can emit light;

2. Interstellar gases, asteroids, planets, and rocky celestial bodies are all filial light that reflects stars, and cannot emit light by themselves;

3. Because of its huge gravitational pull, the star has no mass, which causes the inner core of the star to produce great pressure and ultra-high temperature, and produces nuclear fusion from the hood, which releases great energy on the macroscopic level, thus producing a large amount of heat.

The Sun is not the only planet in the universe that shines.

1. All cosmic stars, supergiants, supergiants, giants, main-sequence stars, dwarf stars, white dwarfs, and neutron stars can all emit light;

2. Interstellar gases, asteroids, planets, and rocky objects are all light that reflects stars and cannot emit light by themselves;

3. Stars are because of their huge gravitational attraction and mass, which causes the inner core of the star to produce great pressure and ultra-high temperature, resulting in nuclear fusion, which releases great energy on the macroscopic scale, thus producing a large amount of heat.