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| The difference is that a red giants forms when a star with the mass of our Sun runs out of fuel, a red supergiant occurs when a star with more than 10 solar masses begins this phase. | |
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| A black dwarf is a star, about the size of the earth, that has gonr threw gravitational collapse and is in the final stage of evolution , beginning hot and white and ending cold and dark. | |
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| A planetary nebula is an expanding shell, thats surrounds a hot dying star about the size of the sun. | |
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