red supergiant

Also known as RSG, M-type supergiant star, red supergiant star

stars with a supergiant luminosity class

Wikidata facts

Image: Artist’s impression of the red supergiant star Antares.jpg

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Commons category: Red supergiants
short name: RSG

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Article

Red supergiants (RSGs) are stars with a supergiant luminosity class (Yerkes class I) and a stellar classification K or M. They are the largest stars in the universe in terms of volume, although they are not the most massive or luminous. Betelgeuse and Antares A are the brightest and best known red supergiants (RSGs), indeed the only first magnitude red supergiant stars.

Hertzsprung–Russell diagram