|
gptkbp:instanceOf
|
gptkb:star
red supergiant
|
|
gptkbp:apparentMagnitude
|
2.84
|
|
gptkbp:catalogue
|
gptkb:Henry_Draper_Catalogue
gptkb:Hipparcos_Catalogue
gptkb:Bright_Star_Catalogue
|
|
gptkbp:colorIndexB-V
|
+1.60
+1.80
|
|
gptkbp:constellation
|
gptkb:Ara
|
|
gptkbp:declination
|
-55° 31′ 48″
|
|
gptkbp:diameter
|
~92 solar radii
|
|
gptkbp:discoveredBy
|
known since antiquity
|
|
gptkbp:distanceFromEarth
|
650 light years
|
|
gptkbp:dominantInConstellation
|
yes
|
|
gptkbp:evolutionaryStage
|
supergiant/bright giant
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Beta Arae
|
|
gptkbp:luminosity
|
~5,600 times Sun
|
|
gptkbp:mass
|
~6 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] ≈ 0.0
|
|
gptkbp:otherDesignation
|
gptkb:β_Arae
gptkb:HD_157244
gptkb:HIP_85258
gptkb:HR_6461
|
|
gptkbp:parallax
|
0.15 mas
5.01 mas
|
|
gptkbp:properMotionRA
|
-7.13 mas/yr
-13.79 mas/yr
|
|
gptkbp:radialVelocity
|
-13.6 km/s
|
|
gptkbp:rightAscension
|
17h 25m 17.6s
|
|
gptkbp:spectralType
|
K3Ib-IIa
|
|
gptkbp:temperature
|
4,200 K
|
|
gptkbp:variableStar
|
no
|
|
gptkbp:visibleToNakedEye
|
yes
|
|
gptkbp:bfsParent
|
gptkb:constellation_Ara
|
|
gptkbp:bfsLayer
|
6
|