During the main sequence stage, a star burns hydrogen fuel in its core through nuclear fusion. The star shines steadily, balancing gravitational collapse with the outward pressure generated by the fusion reactions.
As an Alpha star continues to fuse hydrogen in its core, it gradually depletes its hydrogen supply. This eventually leads to changes in the star's internal structure and behavior, signaling the end of the main sequence stage. The star then evolves to subsequent stages such as the red giant phase or the supergiant phase, depending on its initial mass.
The exact stage in the life cycle of an Alpha star depends on the specific star and its evolutionary history. However, Alpha stars generally spend the majority of their lifetime in the main sequence stage before moving on to later stages.
