Of all the main-sequence stars ever formed with a mass equal to 25 percent of the Sun's mass, how many are still on the main sequence today?

Question

Quizplus · Accepted Answer

Low-mass stars, such as those with 25 percent of the Sun's mass, have very long lifespans on the main sequence, often exceeding the current age of the universe. Therefore, nearly all of them are still on the main sequence today.

Of All the Main-Sequence Stars Ever Formed with a Mass