Alpha Cassiopeiae

URI: https://gptkb.org/entity/Alpha_Cassiopeiae
GPTKB entity
Statements (33)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkb:red_supergiant
gptkbp:apparentMagnitude 2.24
-2.5
gptkbp:BayerDesignation gptkb:Alpha_Cassiopeiae
gptkbp:catalogueNumber gptkb:HD_3712
gptkb:HIP_3179
gptkb:HR_21
gptkbp:colorIndexB-V +1.16
+1.13
gptkbp:constellation gptkb:Cassiopeia
gptkbp:declination +56° 32′ 14.392″
gptkbp:diameter 42 solar radii
gptkbp:discoveredBy ancient astronomers
gptkbp:distanceFromEarth 228 light years
gptkbp:FlamsteedDesignation gptkb:18_Cassiopeiae
gptkbp:hasViewOf gptkb:Northern_Hemisphere
gptkbp:luminosity 771 solar luminosities
gptkbp:mass 4.98 solar masses
gptkbp:metallicity [Fe/H] = -0.01
gptkbp:otherName gptkb:Schedar
gptkbp:parallax 14.29 mas
gptkbp:partOf W asterism in Cassiopeia
gptkbp:properMotionRA +37.17 mas/yr
-16.27 mas/yr
gptkbp:radialVelocity -3.6 km/s
gptkbp:rightAscension 00h 40m 30.440s
gptkbp:spectralType K0IIIa
gptkbp:temperature 4,530 K
gptkbp:variableStar no
gptkbp:bfsParent gptkb:Schedar
gptkbp:bfsLayer 8
https://www.w3.org/2000/01/rdf-schema#label Alpha Cassiopeiae