Alnitak (Star)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.

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From South El Monte , Alnitak is visible in the dawn sky, rising at 02:34 (PDT) – 3 hours and 41 minutes before the Sun – and reaching an altitude of 33° above the south-eastern horizon before fading from view as dawn breaks at around 05:29.

Name Alnitak
Object type Star
Other names
Alnitak
ζ-Ori
Zeta Orionis
50-Ori
50 Orionis
HR 1948[1]
HD 37742
NSV 2553
HIP 26727[5]
TYC 4771-1188-1[4]
Position
Right ascension:05h40m45s [3]
Declination:−01°56'33" [3]
Constellation:Orion
Magnitude:
Variable
1.90 (V) [3]
1.57 (BT) [2]
1.70 (VT) [2]
Distance:225.7 parsec
735.9 lightyrs [5]
B-V Color (mag):-0.10
Proper motion (speed):3.8 mas/yr[5]
Proper motion (pos ang):57.5°
Derived quantities
Absolute mag (V):-4.87

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