1 article for "Giant Star"

A grouping of stars on the Hertzsprung-Russell diagram (which relates spectral type and absolute magnitude).

When a star has burned up a certain percentage of its hydrogen, structural changes take place, and it expands greatly, leaves the Main Sequence, and begins burning helium. It, then, generally becomes some type of giant star.

See also:
♦ Spectral Class ♦ Hertzsprung-Russell Diagram ♦ Absolute Magnitude ♦ Main Sequence