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*10⁹ 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, approximately 1.8 billion years, due to its higher mass and faster rate of nuclear fusion.

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