Betelgeuse's Supernova Can Cause Ice Age On Earth

Nova, Supernova, Betelgeuse

Rigel (also in Orion) has a Hipparcos parallax of 0.00412 arcsec. Given that Betelgeuse and Rigel appear equally bright in the sky, which star is actually more luminous? Knowing that Betelgeuse appears reddish while Rigel appears bluish white, which star would you say is larger and why? | Numerade

Betelgeuse Overview, Size & Age

its-new-territory-why-is-betelgeuse-is-glowing-so-brightly-and-behaving ...