M1.5Iab-Ib (Antares A)

GPTKB entity

Statements (28)
Predicate Object
gptkbp:instanceOf red supergiant star
gptkbp:apparentMagnitude 0.96
gptkbp:color red-orange
gptkbp:diameter ~680 solar radii
gptkbp:discoveredBy ancient astronomers
gptkbp:distanceFromEarth ~550 light years
gptkbp:evolutionaryStage late stage stellar evolution
gptkbp:expansion will become supernova
gptkbp:hasCompanion gptkb:Antares_B
https://www.w3.org/2000/01/rdf-schema#label M1.5Iab-Ib (Antares A)
gptkbp:locatedIn gptkb:Scorpius_constellation
gptkbp:luminosity ~75,900 times Sun
gptkbp:mass ~12 solar masses
gptkbp:metallicity [Fe/H] ≈ -0.15
gptkbp:notableFor brightest star in Scorpius
one of the largest visible stars
gptkbp:otherName gptkb:Antares_A
gptkb:Alpha_Scorpii_A
gptkbp:parallax 5.89 mas
gptkbp:partOf gptkb:Antares_system
gptkbp:properMotionRA -10.16 mas/yr
-23.21 mas/yr
gptkbp:radialVelocity +3.4 km/s
gptkbp:spectralType M1.5Iab-Ib
gptkbp:temperature ~3,500 K
gptkbp:variableType slow irregular variable
gptkbp:bfsParent gptkb:Antares_system
gptkbp:bfsLayer 7