Groombridge 34 i s an M2 main sequence star . Base d o n thi s informatio n, whic h statement is true?
A) Groombridge 34 has a surface temperature that is more than the Sun.
B) Groombridge 34 has mass that is greater than the Sun.
C) Groombridge 34 is less luminous than the Sun.
D) Groombridge 34 is more luminous than the Sun.
E) Groombridge 34 is located near the upper left hand corner on the HR diagram.

Question

Quizplus · Accepted Answer

Groombridge 34, being an M2 main sequence star, is cooler and less massive than the Sun, which is a G2V star. Therefore, it is less luminous than the Sun, as luminosity is strongly related to a star's mass and temperature.

Groombridge 34 I S an M2 Main Sequence Star