γ² Sgr. Magnitude 2.99, orange-red. Comfortably visible to the naked eye from a suburban sky.
Astronomers call it γ² Sgr — the Bayer designation, which reads as a Greek letter ranking its brightness within its constellation. Alnasl is the name people actually use.
Alnasl shines at magnitude 2.99, making it comfortably visible to the naked eye from a suburban sky. Its B−V colour index of 1.00 makes it orange-red to the eye, corresponding to a surface temperature of under 4,000 K.
It sits at right ascension 18.10 hours and declination -30.4°. It lies south of the celestial equator and sits low for northern observers, better the further south you go.
SkyRef shows exactly where Alnasl is from your location right now — altitude, compass direction, and rise and set times.