|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:age
|
5.3 billion years
|
|
gptkbp:alsoKnownAs
|
gptkb:Alpha_Centauri_A
|
|
gptkbp:apparentMagnitude
|
-0.01
|
|
gptkbp:catalogue
|
gptkb:Henry_Draper_Catalogue
|
|
gptkbp:catalogueNumber
|
128620
|
|
gptkbp:constellation
|
gptkb:Centaurus
|
|
gptkbp:declination
|
-60° 50′ 02.3737″
|
|
gptkbp:diameter
|
1.2234 solar radii
|
|
gptkbp:discoveredBy
|
gptkb:Nicolas_Louis_de_Lacaille
|
|
gptkbp:discoveredIn
|
1752
|
|
gptkbp:distanceFromEarth
|
4.37 light years
|
|
gptkbp:hasCompanion
|
gptkb:Proxima_Centauri
gptkb:HD_128621
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
HD 128620
|
|
gptkbp:luminosity
|
1.519 solar luminosities
|
|
gptkbp:mass
|
1.1 solar masses
|
|
gptkbp:metallicity
|
+0.22 [Fe/H]
|
|
gptkbp:parallax
|
747.17 mas
|
|
gptkbp:partOf
|
gptkb:Alpha_Centauri_system
|
|
gptkbp:properMotionRA
|
+481.84 mas/yr
-3678.19 mas/yr
|
|
gptkbp:radialVelocity
|
-22.4 km/s
|
|
gptkbp:rightAscension
|
14h 39m 36.49400s
|
|
gptkbp:spectralType
|
G2V
|
|
gptkbp:temperature
|
5790 K
|
|
gptkbp:bfsParent
|
gptkb:Alpha_Centauri_A
gptkb:G2V_(Alpha_Centauri_A)
|
|
gptkbp:bfsLayer
|
6
|