A star with a higher luminosity and a larger radius than a giant of the same spectral classification. It will have typically one hundred times the luminosity of a giant. It will almost certainly become a supernova.

Blue Supergiant

A supergiant star with spectral type O or B.

Red Supergiant

A supergiant with spectral type M. These are the largest stars in the universe.

Yellow Supergiant

A supergiant star with a spectral type of G.

See also: Blue Supergiant, Red Supergiant, Star, Yellow Supergiant.

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Subjects: Physics