Why do the stars in the sky shine and why do the stars in the sky shine

People look at the stars in the sky, some of them are very bright, but some of them are quite dim. What is the reason for this?

There are two main factors that determine whether people observe stars as light or dark: one is due to the size of the star's ability to emit light, and the other is the distance between the star and people. Astronomers usually divide the ability of stars to shine into 25 magnitudes, with the strongest ones being about 10 billion times different from the worst ones.

A star that is close to people has a strong ability to emit light, so people will light up when they see it. However, even if a star is quite capable of emitting light, if it is very far away, then its brightness may not be as bright as that of a star that is tens of thousands of times less capable of emitting light. Suppose there is a star called Antares that is about 100 million times the size of the Sun and is about 50,000 times more luminous than the Sun, but because it is 410 light-years away from the Earth, one can only see it as a bright star with a red glow.

If Antares were to be moved to the position of the sun, the light and heat it emitted would bake the earth into a large stone ball where everything had disappeared.

Hehehe, like the sun, it is a star that emits light, and other celestial bodies orbiting the star (planets, comets, etc.) reflect the sun's light to let us see its existence. According to astronomers' observations, a star emits light when the stellar nucleosynthesis reaction that occurs inside its core fuses hydrogen into helium. Neutrinos are generated and sunlight is radiated, and the light emitted travels to the earth for us to see, and to determine his existence.

I hope it can help you and I wish you happiness.

Generally, it's a glowing kite, or a drone or something.

There are many, many stars in the sky, and I can't count them. Among these stars, stars like the sun are called stars, which can shine brightly; And a planet like the Earth that revolves around the sun is called a planet; Stars that revolve around the earth like the moon are called satellites.

Stars like the Sun are made up of hot gas, and it emits its own light.

Planets and moons like the Earth and the Moon can't emit light on themselves, but the light from other stars shines on the planet or moon, and they can reflect that light back on, making themselves look shiny as well.

On a clear night, there are a lot of stars, some of which look very large, some of which look very bright. That's because of factors such as the distance between these stars and the Earth where we live, as well as the size and temperature of the stars themselves. Sirius is one of the brightest stars in the night sky because it is one of the closest stars to us and because it is 25 times brighter than the Sun.