What the stars are ?

 For the pastor or former astronomer at the beginning, a star was only one point flashing light in the sky, which seemed almost on the verge of being expelled by each passing breeze. Some thought of the brightest stars of gems set in massive dome of the sky. It was not until several centuries had rolled past some weary men have perhaps suggest that the stars are very large and very hot and bright as the sun, and its great distance only makes you look weak.
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Today we know that this is true, the sun is a star, and it is only because it is so close to us, which seems more important than the other stars. But this proximity is only relative, measured in ordinary terms, the sun is far away. If you should somehow be able to fly in the sun on a transport plane that travels at a speed of 250 miles per hour, should be started early in life, for more than forty years it takes to the trip! Well, if air plane is too slow, say you get a rifle bullet, traveling much faster than a plane. It would help, but we still take nearly five years to reach the sun.
The sun is the nearest star, and certainly the most important for us, the earth and other planets revolve around him, forming what is called the solar system. The sun we get all our light and our life. Like the sun, the stars are other large masses of incandescent gas, brilliant for them. It burned like a piece of coal or wood burning, and if it burns, everything was burned long ago. They are bright, incandescent lamps. Thus, the stars so bright, after a while, most of them show no change of any kind, even after many, many centuries have passed. Our star, the sun shines as it is now for at least several million years.
A star is a huge ball of glowing plasma bound by greatness. At the end of its life, a star can also contain a number of substances disintegrate. The nearest star to Earth is the Sun. Other stars are visible from Earth at night. Historically, the biggest stars of the celestial sphere were grouped collection and asterisms, and the brightest stars to add names. Extensive catalogs of stars have been accumulated by astronomers.