According to a study of computer models that cycle of stars. Astronomers assumed that the sun is about 4570 million years old [6] At this time, the sun was on the main sequence. The fusion of hydrogen into helium every second by the mass of the sun more than 4 million tons is converted into energy. The sun takes approximately one billion years of existence in the main sequence when hydrogen is the fuel of the sun is exhausted. End of the sun arrived. (Ie, away from the main sequence), the sun will begin to see the end is transformed into a red giant in 4-5 billion years, the sun's outer surface to expand. The core collapses, it heats up and cools down the switch. A fuse helium into carbon and oxygen, at a temperature of approximately 100 million K from the above scenario seems to swallow the sun to melt into homogeneous. But from a research report [7] Studies have found that Earth's orbit will pull away the mass of the sun, because the sun was lost. The tension between the more mass is reduced. However, Water is heated by the sun to burn volatile until the end in space. And the atmosphere was not conducive to vanish until later life have been discovered. That the sun will light up 10 percent every million years, until 1000, when the world might not be conducive. The creature before then. Time of life on Earth is only 500 million years of life diagram sun after the sun has passed down a red giant and then. The temperature of the helium fusion reactions that add alternately with the inner core. It is the outer surface of the sun broke out from the core. A planetary nebula Then disappeared into the darkness of space. And materials for creating the next generation of stars and the solar system. The core is left, it will become a white dwarf is very hot and the light faded. Before it goes into a black dwarf. All that said, this is the life of a star with a mass medium.
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