A red giant is a type of star in which the internal supply of hydrogen has been exhausted, leaving the star swollen to a large size with its expanding, cooling mass, and glowing with a reddish light.

The yellow dwarf star Sol is expected to become a red giant start in approximately five billion years.

Known starsEdit

• Aldebaran
• Antares
• Berengaria
• Gamma Xertia
• Lactra
• Tau Lacertae

ConnectionsEdit

Stellar classification
By class and type	class O blue-violet star • class B blue star • class A blue-white star • class F white star (white dwarf) • class G yellow star (yellow dwarf • yellow giant) • class K orange star (orange giant) • class M red star (red dwarf • red giant) • brown dwarf • N-type star • R-type star • S-type star • D-type star
By size or makeup	black hole/black star • carbon star • collapsar • dwarf star (brown dwarf • red dwarf • white dwarf • yellow dwarf) • giant star (blue giant • red giant • orange giant • yellow giant) • Lazarus star • neutron star • protostar • pulsar • supergiant star • Wolf-Rayet star

External linksEdit

• Red giant article at Memory Alpha, the wiki for canon Star Trek.
• Red giant article at Wikipedia, the free encyclopedia.