Ared supergiant (RSG) is a larger and brighter type ofred giant star. Red supergiants are oftenvariable stars. They are between 100 to 1,600 times bigger than theSun. Examples of a red supergiant star includeAntares,119 Tauri,Betelgeuse,Epsilon Pegasi, andVV Cephei A. Most red supergiant stars explode assupernovae. Some of the brightest becomeWolf-Rayet stars before they explode.[1]
Red supergiants are stars are some of the brightest stars. They are also the largest stars in theuniverse. Betelgeuse and Antares are the brightest and best known red supergiants. They are also the only first magnitude red supergiant stars.