Some 10 solar mass main- sequence stars have much shorter lifetimes than other 10 solar mass main- sequence stars.

Name: Some 10 solar mass main- sequence stars have much shorter lifetimes than other 10 solar mass main- sequence stars.
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Main-sequence stars of the same mass, like 10 solar mass stars, have similar lifetimes because their lifetimes are primarily determined by their mass. Stars of the same mass will fuse hydrogen at roughly the same rate, leading to similar lifetimes on the main sequence.

Some 10 Solar Mass Main- Sequence Stars Have Much Shorter