The main sequence lifetime of a star is how long it will be able to release energy from hydrogen fusion in its core. Which type of main sequence star will have the longest lifetime?
A. A massive main sequence star.
B. A medium-mass main sequence star.
C. A low-mass main sequence star.
D. The lifetime of a main sequence star does not depend on its mass.
Answer:C
The main sequence lifetime of a star is how long it will be able to release energy from hydrogen fusion in its core. Which type of main sequence star will have the longest lifetime?
A. A massive main sequence star. B. A medium-mass main sequence star. C. A low-mass main sequence star. D. The lifetime of a main sequence star does not depend on its mass.