Rho Cassiopeiae

URI: https://gptkb.org/entity/Rho_Cassiopeiae
GPTKB entity
Statements (33)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkb:red_supergiant
gptkbp:apparentMagnitude 4.1
-9.5
gptkbp:catalogue gptkb:Henry_Draper_Catalogue
gptkb:Hipparcos_Catalogue
gptkb:Bright_Star_Catalogue
gptkbp:constellation gptkb:Cassiopeia
gptkbp:declination +57° 29′ 58″
gptkbp:diameter ~450 solar radii
gptkbp:discoveredBy gptkb:John_Flamsteed
gptkbp:distanceFromEarth ~3,400 light years
gptkbp:epoch gptkb:J2000
gptkbp:locatedIn gptkb:Cassiopeia
gptkbp:luminosity ~500,000 times Sun
gptkbp:mass ~40 solar masses
gptkbp:metallicity [Fe/H] ≈ -0.4
gptkbp:notableEvent underwent major outburst in 2000
gptkbp:otherDesignation gptkb:BD+57_2564
gptkb:HD_224014
gptkb:HIP_117863
gptkb:HR_9045
gptkbp:parallax 0.96 mas
gptkbp:properMotionRA -2.37 mas/yr
-3.08 mas/yr
gptkbp:radialVelocity -47.0 km/s
gptkbp:rightAscension 23h 54m 23.0s
gptkbp:spectralType G2Ia0e
gptkbp:temperature ~7,000 K
gptkbp:variableStar semiregular variable
gptkbp:bfsParent gptkb:Yellow_supergiant
gptkbp:bfsLayer 6
https://www.w3.org/2000/01/rdf-schema#label Rho Cassiopeiae