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Number 11-16. Stars and Gallaxies study guide. Number 11. What does the lifetime of a star depend on? Its mass. Number 12. Define a light year? The distance that light travels in one year. Number 13. Know the stages of a star from the earliest stage to the latest stage.
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Number 11-16 Stars and Gallaxies study guide
Number 11 • What does the lifetime of a star depend on? • Its mass
Number 12 • Define a light year? • The distance that light travels in one year.
Number 13 • Know the stages of a star from the earliest stage to the latest stage. • Nebula, protostar, main-sequence, red giant ,supergiant, supernova, black hole, neutron star
Number 14 • Know the location of the brightest dimmest and main-sequence stars on the H R diagram. • Brightest : top • Dimmest: bottom • Main-sequence:middle
Number 15 • What stars are hot, cold, and medium temperatures? • Hot: blue • Medium: yellow, orange, and white • Cold: red
Number 16 • What is a nebula? • A cloud of dust and gas.