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Teach Astronomy - Properties of Main Sequence Stars

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Published on Jul 10, 2010

http://www.teachastronomy.com/
Main sequence stars have several basic properties. All main sequence stars are converting hydrogen to helium by the fusion process, and that's responsible for the energy release and the radiation that leaves the stars. Main sequence stars are all stable with their internal structure governed by the principle of hydrostatic equilibrium. The most massive main sequence stars are more luminous, physically larger, and have hotter photospheres than low mass main sequence stars. Main sequence stars come in the mass range from about a tenth the mass of the Sun to about a hundred times the mass of the Sun, but the most abundant main sequence stars have around the mass of the Sun or lower.

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