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nataly862011 [7]
4 years ago
13

Algol consists of a 3.7 msun main-sequence star and a 0.8 msun subgiant. why does this seem surprising, at least at first?

Physics
1 answer:
Aleonysh [2.5K]4 years ago
7 0
The two stars should be the same age, so we'd expect the subgiant to be more massive than the main-sequence star.
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