β Cen. Magnitude 0.61, blue-white. A first-magnitude star, among the brightest few dozen visible.
Astronomers call it β Cen — the Bayer designation, which reads as a Greek letter ranking its brightness within its constellation. Hadar is the name people actually use.
Hadar shines at magnitude 0.61, making it a first-magnitude star, among the brightest few dozen visible. Its B−V colour index of -0.23 makes it blue-white to the eye, corresponding to a surface temperature of over 10,000 K.
It sits at right ascension 14.06 hours and declination -60.4°. It is deep in the southern sky and never rises for most of the northern hemisphere.
SkyRef shows exactly where Hadar is from your location right now — altitude, compass direction, and rise and set times.