Is there a relationship between the mass of a main-sequence star and its luminosity?
A) No. Large masses can have low luminosities and vice versa.
B) Yes. Mass and luminosity are related linearly: A star twice as massive has twice the luminosity.
C) Yes. The mass and luminosity are related, but not linearly: A star twice as massive has more than twice the luminosity.
D) Yes, but surprisingly there is an anticorrelation: Larger masses have smaller luminosities.

Question

Quizplus · Accepted Answer

The relationship between the mass of a main-sequence star and its luminosity is not linear; more massive stars are disproportionately more luminous. This means that a star that is twice as massive as another is significantly more than twice as luminous.

Is There a Relationship Between the Mass of a Main-Sequence