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HandWiki. Red Supergiant Star. Encyclopedia. Available online: https://encyclopedia.pub/entry/35171 (accessed on 03 October 2026).
HandWiki. Red Supergiant Star. Encyclopedia. Available at: https://encyclopedia.pub/entry/35171. Accessed October 03, 2026.
HandWiki. "Red Supergiant Star" Encyclopedia, https://encyclopedia.pub/entry/35171 (accessed October 03, 2026).
HandWiki. (2022, November 18). Red Supergiant Star. In Encyclopedia. https://encyclopedia.pub/entry/35171
HandWiki. "Red Supergiant Star." Encyclopedia. Web. 18 November, 2022.
Red Supergiant Star
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The content is sourced from: https://handwiki.org/wiki/Astronomy:Red_supergiant_star

Red supergiants (RSGs) are stars with a supergiant luminosity class (Yerkes class I) of spectral type 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 are the brightest and best known red supergiants (RSGs), indeed the only first magnitude red supergiant stars.

betelgeuse red supergiants luminosity

References

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