What is the approximate luminosity of a 0.5 M main-sequence star? A)0.09 L_☉ B)0.01 L_☉ C)0.2 L_☉ D)0.5 L_☉ E)0.7 L_☉

Name: What is the approximate luminosity of a 0.5 M main-sequence star? A)0.09 L ☉ B)0.01 L ☉ C)0.2 L ☉ D)0.5 L ☉ E)0.7 L ☉
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The luminosity of a main-sequence star is roughly proportional to the mass to the power of 3.5. For a 0.5 M☉ star, this gives approximately 0.5^3.5 ≈ 0.09 L☉.

What Is the Approximate Luminosity of a 0