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Section 2 The Life Cycle of Stars

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1 Section 2 The Life Cycle of Stars
Chapter 2 Section 2 The Life Cycle of Stars

2 Star Life Cycle black dwarf black hole planetary nebula main sequence star nebula protostar neutron star white dwarf red giant supernova

3 Temp-bottom blue hottest, red cooler
Brightness side, top is very bright Diagonal-main sequence stars Stars move up to the right as they age and then down to the left Majority of stars are main sequence

4 H-R diagram Indicates the relationship between a stars temperature and the star’s brightness, which indicates the star’s age

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