Science and Tech homework Solar Eveolution

Science and Tech homework Solar Eveolution - • Stars use...

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LBST 2213 Dr. Corwin March 12, 2008 Stellar Evolution Stars are formed from gravity pulling in gas and dust. In 1 Mass star, mostly Hydrogen, Helium (some heavier elements) come together under increasing gravitational forces to form disc like protostar. As temperature increases in center, fusion begins. Properties of a star: Surface temperatures between, 3000K and 40000K with core temps of 10 to 20 million K. Ages can reach 15 billion.
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Unformatted text preview: • Stars use Hydrogen along with high temperatures/gravitation to fuse elements into Helium releasing energy. • When a star dies (depletes hydrogen resources) it ejects the outer shell regions and leaves behind a white dwarf. • Crab Nebula is previous star gone supernova, observed on Earth in 1054, now a cloud of gases expanding from pulsar....
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