β¹ Sco. Magnitude 2.62, white. Comfortably visible to the naked eye from a suburban sky.
Astronomers call it β¹ Sco — the Bayer designation, which reads as a Greek letter ranking its brightness within its constellation. Acrab is the name people actually use.
Acrab shines at magnitude 2.62, making it comfortably visible to the naked eye from a suburban sky. Its B−V colour index of -0.07 makes it white to the eye, corresponding to a surface temperature of around 8,000 K.
It sits at right ascension 16.09 hours and declination -19.8°. It straddles the celestial equator, so it is visible from essentially anywhere on Earth at the right time of year.
SkyRef shows exactly where Acrab is from your location right now — altitude, compass direction, and rise and set times.