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aalyn [17]
4 years ago
14

Why do stars shrink?

Biology
2 answers:
gavmur [86]4 years ago
7 0
Stars loses their energy by radiation hence they shrink. I think this is the answer
slava [35]4 years ago
5 0
The star's outer layers expand while the core is shrinking and as the expansion continues, the luminosity begins to increase. For a star with the mass of the sun, this expansion takes about a billion years and the star's radius increases 100 times, and its luminosity increases even more. The star is called a red giant.
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