1. form in the nebula
2. red giant
3. smaller stars = planetary nebula,
white dwarf, black dwarf
4. massive star = explodes into a supernova,
neutron star,
5. very massive = black hole
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gravity
decreases with smaller mass and when things are further away
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Light years
a measure of long-distance how far away something is
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Doppler effect
the change in frequency in a wave
relates to the source and observer
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How to measure the redshift
study the redshift spectrum scale
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Nuclear fusion
reaction when 2 or more nuclei combine to make a heavier one realising massive amounts of energy
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