The star are self glowing heavenly bodies which generate the energy themselves by nuclear fusion reaction. The temperature of stars is very high. About 3000 stars can be seen in the skyinclearnight with naked eyes.The sun is the nearest star of earth. Alpha centauri is the nearest star of the sun.
Scientist believed that stars are formed by the nebula. The nebula will make the collection of inter seller objects into various places into smaller parts. By any means, any one of the mass will develop the gravitational force and stars to attract the other patches towards itself. As a result of which its mass increases and the pressure on the circle also increases. And when the temperature of center reaches 5 x 106 degree Celsius then it is called a protostar .In protostar gradually nuclear fusion reaction starts, due to excessive gravitational force, and it converts into stars.
State two specific characteristics of black hole. What will happen to the sun at the end of its life?
The two specific characteristic of black hole are:
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