The Bayer designations c Centauri and C Centauri are distinct.
The designation c Centauri is shared by two star systems in the constellation Centaurus:
The designation C Centauri is shared by three star systems:
Alpha Centauri is a triple star system in the southern constellation of Centaurus. It consists of 3 stars: Rigil Kentaurus, Toliman (B) and Proxima Centauri (C). Proxima Centauri is also the closest star to the Sun at 4.2465 light-years.
A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction. A large group of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems. Star systems are not to be confused with planetary systems, which include planets and similar bodies.
The Bayer designation Upsilon Centauri is shared by two star systems, in the constellation Centaurus:
HD 102964, also known as B Centauri, is a single star in the southern constellation of Centaurus. It has the identifier HD 102964 in the Henry Draper catalogue; B Centauri is the star's Bayer designation. This object has an orange hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.47. The star is located at a distance of approximately 440 light years from the Sun based on parallax, and has an absolute magnitude of −1.14.
C1 Centauri is a single star in the southern constellation of Centaurus. It has the variable star designation V763 Centauri, while C1 Centauri is the Bayer designation. The star has a red hue and is dimly visibly to the naked eye with an apparent visual magnitude that fluctuates around +5.64. It is located at a distance of approximately 600 light years based on parallax, and has an absolute magnitude of −1.05. It is drifting further away with a radial velocity of +21 km/s. At one time it was a candidate member of the Zeta Herculis Moving Group but has since been excluded.
The Bayer designation Xi Centauri is shared by two star systems, in the constellation Centaurus:
HD 113703, also known by the Bayer designation f Centauri, is a multiple star system in the southern constellation of Centaurus. The combined apparent visual magnitude of this system is +4.71, which is sufficient to make it faintly visible to the naked eye. The distance to this system is approximately 400 light years based on parallax measurements. It is a member of the Lower Centaurus Crux subgroup of the Scorpius–Centaurus association.
The Bayer designation Omicron Centauri is shared by two star systems, in the constellation Centaurus:
The Bayer designation θ Orionis is shared by several astronomical objects, located near RA 05h 35m DEC −05° 24′:
The designations W Centauri and w Centauri refer to two different stars in the constellation Centaurus.
The Bayer designations A Centauri and a Centauri represent different stars. Due to technical limitations, both designations link here.
x2 Centauri is a star located in the constellation Centaurus. It is also known by its designations HD 108114 and HR 4724. The apparent magnitude of the star is about 5.7, meaning it is only visible to the naked eye under excellent viewing conditions. Its distance is about 440 light-years, based on its parallax measured by the Hipparcos astrometry satellite.
x1 Centauri is a star located in the constellation Centaurus. It is also known by its designations HD 107832 and HR 4712. The apparent magnitude of the star is about 5.3, meaning it is only visible to the naked eye under excellent viewing conditions. Its distance is about 440 light-years, based on its parallax measured by the Hipparcos astrometry satellite.
The designations U Centauri and u Centauri refer to two different stars in the constellation Centaurus.
The Bayer designations g Carinae and G Carinae refer to separate stars:
The Bayer designation κ Lupi is shared by two star systems in the constellation Lupus:
The Bayer designation τ Lupi is shared by two star systems in the constellation Lupus:
The Bayer designation φ Lupi is shared by two star systems in the constellation Lupus:
The Bayer designation ζ Librae, Latinised as Zeta Librae is shared by several star systems in the constellation Libra. Sources differ about the Flamsteed and Bayer designations that should be applied to four stars:
The Bayer designations b Centauri and B Centauri are distinct. Due to technical limitations, both designations link here. For the star