Magnitude 2.45, white. Comfortably visible to the naked eye from a suburban sky.
Alhena shines at magnitude 2.45, making it comfortably visible to the naked eye from a suburban sky. Its B−V colour index of -0.08 makes it white to the eye, corresponding to a surface temperature of around 8,000 K.
It sits at right ascension 7.40 hours and declination -29.3°. It lies south of the celestial equator and sits low for northern observers, better the further south you go.
SkyRef shows exactly where Alhena is from your location right now — altitude, compass direction, and rise and set times.