|
gptkbp:instanceOf
|
gptkb:binary_star_system
|
|
gptkbp:age
|
5-6 billion years
|
|
gptkbp:apparentMagnitude
|
−0.27
|
|
gptkbp:catalogueNumber
|
gptkb:HD_128620/128621
gptkb:HR_5459/5460
gptkb:Gliese_559
|
|
gptkbp:component
|
gptkb:Alpha_Centauri_A
gptkb:Alpha_Centauri_B
|
|
gptkbp:declination
|
−60° 50′ 02″
|
|
gptkbp:discoveredBy
|
unknown (known since antiquity)
|
|
gptkbp:distanceFromEarth
|
4.37 light years
|
|
gptkbp:hasExoplanet
|
gptkb:Alpha_Centauri_Bb_(disputed)
|
|
gptkbp:locatedIn
|
constellation Centaurus
|
|
gptkbp:luminosity
|
2.0 solar luminosities (combined)
|
|
gptkbp:mass
|
2.0 solar masses (combined)
|
|
gptkbp:metallicity
|
higher than Sun
|
|
gptkbp:nearestStarSystemToSun
|
true
|
|
gptkbp:orbitType
|
79.91 years
|
|
gptkbp:otherName
|
gptkb:Rigil_Kentaurus
gptkb:Toliman
|
|
gptkbp:partOf
|
gptkb:Alpha_Centauri_triple_star_system
|
|
gptkbp:rightAscension
|
14h 39m 36.5s
|
|
gptkbp:separates
|
11.2 AU (average)
|
|
gptkbp:spectralType
|
G2V (A), K1V (B)
|
|
gptkbp:bfsParent
|
gptkb:HD_128620C_(Proxima_Centauri)
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Centauri AB
|