It can take hundreds of billions of years for a red dwarf to convert all of its hydrogen completely to helium.

Question

Quizplus · Accepted Answer

Red dwarfs are the smallest and coolest type of main sequence stars. They burn their fuel slowly and therefore have long lifetimes. It is estimated that it can take a red dwarf approximately 10 trillion years to use up all of its hydrogen, which is much longer than the current age of the universe.

It Can Take Hundreds of Billions of Years for a Red