In the H-R diagram, roughly 80 percent of all stars are

Question

Quizplus · Accepted Answer

The majority of stars, roughly 80 percent, are on the main sequence. This is because stars spend the bulk of their lifetimes fusing hydrogen into helium, which is a process that occurs on the main sequence. The other regions of the H-R diagram, such as the giant and supergiant regions, are where stars go after they have exhausted much of their hydrogen fuel. Therefore, they are not as numerous as stars on the main sequence.

In the H-R Diagram, Roughly 80 Percent of All Stars