What is the primary factor determining how long a star will inhabit the main sequence?

Answer

Its initial mass

The initial mass of a star is the primary factor that dictates its lifespan on the main sequence, as higher mass forces a star to burn its fuel at a much faster rate.

What is the primary factor determining how long a star will inhabit the main sequence?

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Which Type Of Star Has The Shortest Life Span? - Physics Frontier

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