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- Zeta_Centauri abstract "Zeta Centauri (ζ Centauri, ζ Cen) is a binary star system in the southern constellation of Centaurus. It has the proper name Alnair, from the scientific-Arabic Nayyir Badan Qanṭūris (ألناير ألبطن ألقنتورس), meaning "The Bright (Star) of the Body of the Centaur". With a combined apparent visual magnitude of +2.55, it is one of the brighter members of the constellation. This system is close enough to the Earth that its distance can be measured directly using the parallax technique. This yields a value of roughly 382 light-years (117 parsecs), with a 1.6% margin of error.In Chinese, 庫樓 (Kù Lóu), meaning Arsenal, refers to an asterism consisting of ζ Centauri, η Centauri, θ Centauri, 2 Centauri, HD 117440, ξ1 Centauri, γ Centauri, τ Centauri, D Centauri and σ Centauri. Consequently, ζ Centauri itself is known as 庫樓一 (Kù Lóu yī, English: the First Star of Arsenal.)ζ Cen is a double-lined spectroscopic binary system, which indicates that the orbital motion was detected by shifts in the absorption lines of their combined spectra caused by the Doppler effect. The two stars orbit each other over a period of slightly more than eight days with an orbital eccentricity of about 0.5. The estimated angular separation of the pair is 1.4 mas.At an estimated age of 40 million years, the primary component of this system appears to be in the subgiant stage of its evolution with a stellar classification of B2.5 IV. It is a large star with nearly 8 times the mass of the Sun and close to 6 times the Sun's radius. This star is rotating rapidly with a projected rotational velocity of 235 km s–1.".
- Zeta_Centauri thumbnail Centaurus_IAU.svg?width=300.
- Zeta_Centauri wikiPageID "3117330".
- Zeta_Centauri wikiPageRevisionID "602425077".
- Zeta_Centauri appmagV "+2.55".
- Zeta_Centauri axisUnitless "0.0014".
- Zeta_Centauri bV "−0.22".
- Zeta_Centauri class "B2.5 IV".
- Zeta_Centauri constell Centaurus.
- Zeta_Centauri eccentricity "0.5".
- Zeta_Centauri epoch "J2000.0".
- Zeta_Centauri hasPhotoCollection Zeta_Centauri.
- Zeta_Centauri pError "0.13".
- Zeta_Centauri parallax "8.54".
- Zeta_Centauri periarg "290".
- Zeta_Centauri periastron "2413719.321".
- Zeta_Centauri periodUnitless "693273.6".
- Zeta_Centauri propMoDec "−44.55".
- Zeta_Centauri propMoRa "−57.37".
- Zeta_Centauri radialV "+6.5".
- Zeta_Centauri rotationalVelocity "235".
- Zeta_Centauri uB "−0.91".
- Zeta_Centauri subject Category:B-type_subgiants.
- Zeta_Centauri subject Category:Bayer_objects.
- Zeta_Centauri subject Category:Centaurus_(constellation).
- Zeta_Centauri subject Category:Spectroscopic_binaries.
- Zeta_Centauri type BayerObjects.
- Zeta_Centauri type BinaryStar109221070.
- Zeta_Centauri type CelestialBody109239740.
- Zeta_Centauri type NaturalObject100019128.
- Zeta_Centauri type Object100002684.
- Zeta_Centauri type PhysicalEntity100001930.
- Zeta_Centauri type SpectroscopicBinaries.
- Zeta_Centauri type Star109444100.
- Zeta_Centauri type Whole100003553.
- Zeta_Centauri type CelestialBody.
- Zeta_Centauri type Star.
- Zeta_Centauri type PhysicalBody.
- Zeta_Centauri comment "Zeta Centauri (ζ Centauri, ζ Cen) is a binary star system in the southern constellation of Centaurus. It has the proper name Alnair, from the scientific-Arabic Nayyir Badan Qanṭūris (ألناير ألبطن ألقنتورس), meaning "The Bright (Star) of the Body of the Centaur". With a combined apparent visual magnitude of +2.55, it is one of the brighter members of the constellation. This system is close enough to the Earth that its distance can be measured directly using the parallax technique.".
- Zeta_Centauri label "Zeta Centauri".
- Zeta_Centauri label "Zeta Centauri".
- Zeta_Centauri label "Zeta Centauri".
- Zeta_Centauri label "Zeta Centauri".
- Zeta_Centauri label "Zeta Centauri".
- Zeta_Centauri label "Zeta Centauri".
- Zeta_Centauri label "Zeta Centauri".
- Zeta_Centauri label "Zeta Centauri".
- Zeta_Centauri label "ケンタウルス座ゼータ星".
- Zeta_Centauri label "庫樓一".
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri sameAs ケンタウルス座ゼータ星.
- Zeta_Centauri sameAs 센타우루스자리_제타.
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri sameAs m.08sk1g.
- Zeta_Centauri sameAs Q196842.
- Zeta_Centauri sameAs Q196842.
- Zeta_Centauri sameAs Zeta_Centauri.
- Zeta_Centauri wasDerivedFrom Zeta_Centauri?oldid=602425077.
- Zeta_Centauri depiction Centaurus_IAU.svg.
- Zeta_Centauri isPrimaryTopicOf Zeta_Centauri.
- Zeta_Centauri name "Zeta Centauri".