What are the stars that glow by themselves in the universe?

The self-luminous star in the universe is a star, which is composed of non-solid, liquid and gaseous plasmas in the fourth state, and is a spherical or quasi-spherical celestial body that can self-glow. Because the stars are too far away from us, it is difficult to find their position changes in the sky without special tools and methods, so the ancients regarded them as stars, and the sun, the main star of our solar system, is a star.

A star is a sphere composed of luminous plasma, which is bound together by its own gravity. The nearest star to the earth is the sun. At night, many other stars can be seen with the naked eye on the earth. Because they are far away from the earth, they appear as fixed luminous points in the sky.

Historically, the most outstanding stars have been divided into constellations and starry sky, and the brightest stars have been given an appropriate name. Astronomers have compiled a catalogue to identify known stars and provide standardized star names. Most stars are invisible to the naked eye from the earth, including all stars outside our Milky Way, the Milky Way.