(Theta Centauri) An orange giant K star that is the third brightest star in the constellation Centaurus; its Arabic name means 'the Shoulder of the Centaur.' Visual magnitude 2.06 Absolute magnitude 0.70 Spectral type K0IIIb Surface temperature 4,500 K Luminosity 45... Found on http://www.daviddarling.info/encyclopedia/M/Menkent.html