What kind of stars are not light sources?

Among the stars in the universe, only the star can emit light and heat, and the sun is the nearest star to the earth.

Planets and satellites do not actively emit light;

For example, the eight planets in the solar system do not emit light, but they can reflect light.

Moon: The natural satellite of the earth, which reflects sunlight and does not give off light.

Most stars in the sky are active stars. They are far away from the earth. ..

It takes years or decades or even longer for some light to reach the earth and enter our eyes. ....

So every star we see is a kind of fate, so we should cherish it. Hard-won.