Star
Betelgeuse
α Orionis · HIP 27989 · Red supergiant
True colour from its B–V index (1.50) — a surface around 3,800 K.
Distance
498 light-years
Spectral type
M2Ib
Brightness
mag 0.45
Absolute mag
-5.47
Luminosity
13,415 × Sun
Surface
~3,800 K
Right ascension
5h 55m 10s
Declination
+7° 24′
- Betelgeuse is a red supergiant in Orion.
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Distances and spectral types: HYG Database (Hipparcos parallaxes), CC BY-SA 4.0.