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Centaurus

The Centaur

Abbreviation: Cen
Genitive: Centauri
Origin: [antiquity]

The constellation of Centaurus

The ancient Greeks visualised this group of stars as a centaur, a creature with the body of a horse, and the head and torso of a man where the horse's neck and head would be. Some authorities claim that the constellation honours Chiron, tutor to many Greek legendary heroes. Others say that Sagittarius is Chiron and that Centaurus represents the wilder members of the species.

The constellations of Crux and Lupus were originally part of Centaurus.

Notable Features

Designation Name Description
α Cen A Rigil Kentaurus This is a first magnitude star and the closest one to the Sun. It sometimes appears as Bungula (from the Greek letter β and Latin ungula meaning 'the hoof') in older star atlases and catalogues.
α Cen B Toliman The second-brightest component of the α Centauri star system also has a name.
α Cen C Proxima Centauri This component of α Centauri is closest to the Sun.
β Cen Hadar This is another first magnitude star in this constellation. It sometimes appears as Agena (from the Greek letter α and Latin genu meaning 'the knee') in older star atlases and catalogues.
θ Cen Menkent
HD 102117 Uklun This seventh-magnitude star is known to have at least one exoplanet.
HD 117618 Dofida This seventh-magnitude star is known to have at least one exoplanet.
WASP-15 Nyamien This eleventh-magnitude star is known to have at least one exoplanet.
C77 Centaurus A This unusual radio galaxy is is either a giant elliptical or giant lenticular galaxy. It possesses a very active galactic nucleus, with a relativistic jet being ejected from it.
C80 ω Centauri The biggest and brightest globular cluster in the sky is ω Centauri. Visible to the naked eye, a small telescope will reveal its brightest stars. It is so unusual and unlike other globular clusters that some researchers think that it might be the core of a disrupted dwarf galaxy.
C83 This is a nearly edge-on spiral galaxy with prominent dust lanes visible on long-exposure photographs.
C84 A globular cluster, this extragalactic object requires the use of optical aids to see it.
C97 Pearl Cluster The Pearl Cluster is an open star cluster, one of many in this part of the sky.
C100 λ Centauri Nebula This object is an open star cluster with an associated emission nebula.