Betelgeuse

"armpit" (east)

Other Names

Betelguex; Betelgeuze; Beteiguex; Al Mankib.

Alpha Orionis

HR 2061

HD 39801

Data

RA 05 55 10.3

Dec +07 24 25

V 0.50

B-V +1.85

Spectral Type M1-2Ia-Iab

Betelgeuse is the 12th brightest star in the sky. It is called Alpha Orionis even though it is fainter than Beta Orionis (Rigel). This is because Betelgeuse, a variable star, was misclassified.

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