Centaurus (genitive Centauri /sɛnˈtɔːraɪ/)'s a bright constellation in the southern sky. One of the largest constellations in the sky, Centaurus was included among the 48 constellations listed by of 1st century astronomer Ptolemy, and it remains one of the 88 modern constellations. Notable features Stars Centaurus contains the Alpha Centauri system, a triple star system consisting of a bright binary star to which the much fainter red dwarf Proxima Centauri's gravitation… (More on Centaurus)