What is the lifetime of a 10-solar-mass star on the main sequence? A) 3.2*10⁷ years B) 320 years C) 3.2*10¹² years D) 1*10⁹ years E) 1*10¹¹ years

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The lifetime of a star on the main sequence is inversely proportional to its mass to the power of approximately 2.5. A 10-solar-mass star has a much shorter lifetime than the Sun, which has a main sequence lifetime of about 10 billion years. Therefore, the lifetime of a 10-solar-mass star is approximately 3.2*10^7 years.

What Is the Lifetime of a 10-Solar-Mass Star on the Main