Red supergiant
Stars with a supergiant luminosity class
Nº Q5898 ★★
Uncommon · Knowledge
Red supergiant
Stars with a supergiant luminosity class
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.
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From Wikipedia
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.
Text: Wikipédia, CC BY-SA 4.0. · Image: ESO/M. Kornmesser (CC BY 4.0) ·
