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Rigel: 12100 K.Sun: 5778 K.
Rigel is a blue-white star, while Betelgeuse is a red supergiant star.
Rigel is brighter than Betelgeuse. Rigel is a blue supergiant star and one of the brightest stars in the night sky, while Betelgeuse is a red supergiant and although it is one of the largest stars known, it is not as bright as Rigel.
Betelgeuse is larger in size than Rigel. Betelgeuse is a red supergiant star with a diameter about 800 times that of the Sun, while Rigel is a blue supergiant star with a diameter about 70 times that of the Sun.
Cooler can be subjective depending on the context, but in terms of stellar characteristics, Rigel is generally considered "cooler" than Mira. Rigel is a blue supergiant star with a surface temperature of about 11,000 K, making it one of the hottest stars visible to the naked eye. In contrast, Mira is a red giant star with a much lower surface temperature of around 2,500-3,000 K. Thus, if by "cooler" you mean temperature, Mira is cooler, but Rigel's brightness and mass make it fascinating as well.
It is a blue-white super-giant.
Rigel is pronounced as "RYE-jell".
Rigel
Rigel is in the constellation Orion, not Centaurus. Please check your spelling and, if appropriate, resubmit.
Rigel B is also a blue-white star but, unlike Rigel A, it is a main sequence star.
Rigel is not in the solar system.
Invaders from Rigel was created in 1960.
Rescue at Rigel happened in 1980.
Rescue at Rigel was created in 1980.
Rigel has a luminosity of 117,490 solar luminosities.
Rigel's Revenge happened in 1987.
Rigel's Revenge was created in 1987.