Life Cycles of Stars

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Life Cycles of Stars
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Star

• Form from a cloud of gas and dust
• Nebula
• Massive star shorter its life
• Death of a massive star Supernova

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Main sequence stars

• Same size as the sun
• Vary in surface temp. magnitude
• Million billion years

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Life cycle
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Bigger than Main Sequence Stars

• Giant Stars Diameters 10X greater than the
  Sun
• Supergiants More luminous than giant stars. 100X
  gt Sun
• Ex Betelgeuse, in Constellation of ____

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Red giant

• White Dwarf Near end of star life
• Red giant lost out atmosphere, now only glowing
  core

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REVIEW

• When a red giant dies, what does it become?
• What kind of stars exist before the red giant?

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REVIEW

• The main sequence stars are the same in
  temperature but different in size. T or F
• Betelgeuse is a type of _____star