|
gptkbp:instanceOf
|
gptkb:star
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
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Cassiopeiae
|
|
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
|