What is the lifetime on the main sequence of a 2-solar-mass star compared to the approximately 10-billion-year life of our Sun? Pick the best answer. A) 1.8 × 10¹¹ years B) 1.8 × 10¹⁰ years C) 1.8 × 10⁸ years D) 1.8 × 10⁶ years E) 1.8 × 10³ years

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Quizplus · Accepted Answer

A 2-solar-mass star has a shorter main sequence lifetime than the Sun because it burns through its nuclear fuel more quickly. The lifetime is approximately 1.8 × 10^8 years.

What Is the Lifetime on the Main Sequence of a 2-Solar-Mass