Tags: Star.
Zeta Centauri (ζ Centauri ζ Cen) is a binary star system in the southern constellation of Centaurus. It has the proper name Alnair from the scientific-Arabic Nayyir Badan Qanṭūris (ألناير ألبطن ألقنتورس) meaning The Bright (Star) of the Body of the Centaur. With a combined apparent visual magnitude of +2.55 it is one of the brighter members of the constellation. This system is close enough to the Earth that its distance can be measured directly using the parallax technique.
