Chi Centauri (χ Cen, χ Centauri) is a star in the constellation Centaurus. χ Centauri is a blue-white B-type main sequence dwarf with a mean apparent magnitude of +4.36. It is approximately 510 light years from Earth. It is classified as a Beta Cephei type variable star and its brightness varies by 0.02 magnitudes with a period of 50.40 minutes. This star is a proper motion member of the Upper Centaurus–Lupus sub-group in the Scorpius–Centaurus OB association, the nearest such co-moving association of massive stars to the Sun. References Centauri, Chi Beta Cephei variables B-type main-sequence stars Centaurus (constellation) Upper Centaurus Lupus 5285 068862 122980 CD-40 8405