A 20 solar mass star will stay on the main sequence for 10 million years, yet its iron core canexist for only a:
A)day.
B)week.
C)month.
D)year.
E)century.

Question

Quizplus · Accepted Answer

A 20 solar mass star has a very short lifespan on the cosmic scale due to its high mass and rapid consumption of nuclear fuel. When it reaches the end of its life, the iron core that forms can only exist for a very short period before collapsing, leading to a supernova. This period is approximately a day.

A 20 Solar Mass Star Will Stay on the Main