What phase will a star enter if it's large enough to convert hydrogen atoms into helium?

If the star is large enough to convert hydrogen atoms into helium, it will enter the main sequence phase, which our Sun is currently in. The main sequence phase is where a star spends the majority of its existence. At this stage, a star is stable because the light pressure exerted by its energy compensates for the gravitational collapse of the star.

Asked by Vasilii Kulev · Last updated 4 years ago · 1.7K views · SOURCE