Spectral TypeM1-2 Ia-ab
Temperature3,600 K
M1-2 Ia-ab TypeConstellation: Orion
Betelgeuse
Alpha Orionis
Betelgeuse is a red supergiant and one of the largest stars visible to the naked eye.
Distance
548 ly
Light Years from Earth
Age
8-10 million years
Estimated
Mass
16.5 M☉
Relative to Sun
Radius
764 R☉
Relative to Sun
Surface Temp
3,600 K
Effective Temp
Luminosity
126,000 L☉
Total Energy Output
Astrophysical Data
Apparent Magnitude0.42
Absolute Magnitude-5.14
Spectral ClassificationM1-2 Ia-ab