Alhena (Star)

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

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From Fairfield , Alhena is visible in the dawn sky, rising at 02:46 (EDT) – 3 hours and 15 minutes before the Sun – and reaching an altitude of 25° above the eastern horizon before fading from view as dawn breaks at around 05:08.

Name Alhena
Object type Star
Other names
Alhena
γ-Gem
Gamma Geminorum
24-Gem
24 Geminorum
HR 2421[1]
HD 47105
HIP 31681[3]
Position
Right ascension:06h37m42s [2]
Declination:+16°23'57" [2]
Constellation:Gemini
Magnitude:1.93 (V) [2]
2.02 (VT) [2]
Distance:33.5 parsec
109.2 lightyrs [3]
B-V Color (mag):0.00
Proper motion (speed):56.7 mas/yr[3]
Proper motion (pos ang):165.9°
Derived quantities
Absolute mag (V):-0.70

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