Star
Alnitak
ζ Orionis · HIP 26727 · Blue supergiant
True colour from its B–V index (-0.20) — a surface around 13,600 K.
Distance
736 light-years
Spectral type
O9.5Ib SB
Brightness
mag 1.74
Absolute mag
-5.03
Luminosity
8,937 × Sun
Surface
~13,600 K
Right ascension
5h 40m 46s
Declination
−1° 57′
- Alnitak is a blue supergiant in Orion.
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Distances and spectral types: HYG Database (Hipparcos parallaxes), CC BY-SA 4.0.