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Life Cycle of Stars NOTES

Class notes/pics

Jennifer Osina-Wilson

on 16 November 2011

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Transcript of Life Cycle of Stars NOTES

Average Size Star Life Cycle of Stars Nebulas - all stars begin as parts of a nebula - large amounts of gas and dust spread out in an immence volume. Protostar - a star is born when the contracting (GRAVITY) gas and dust become so HOT that Nuclear Fusion starts. Massive Star Red Giant SUPER Giant White Dwarfs: white hot core of a star when a red giant runs out of fuel. Black Dwarf - When white dwarf STOPS glowing Size as big as earth - Mass as much as SUN SUPERNOVA When a dying GIANT or SUPER Giant EXPLODES Pulsars - Neutron Star Left over SuperNova material collapses
20 km diameter
3 times the mass of the SUN A type of Neutron star that pulses by emmiting radio waves as it rotates on its axis Black HOLES - formed by the most massive stars - After this massive star becomes a supernova...
Gravity pulls everything inward that nothing can escape not even light
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