Achird

URI: https://gptkb.org/entity/Achird
GPTKB entity
Statements (30)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:age 6.2 billion years
gptkbp:apparentMagnitude 3.44
gptkbp:BayerDesignation gptkb:η_Cassiopeiae
gptkbp:binarySystem yes
gptkbp:companionSpectralType gptkb:K7V
gptkbp:constellation gptkb:Cassiopeia
gptkbp:declination +57° 48′ 55″
gptkbp:diameter 1.1 solar radii
gptkbp:discoveredBy gptkb:William_Herschel
gptkbp:discoveredIn 1779
gptkbp:distanceFromEarth 19.42 light years
gptkbp:FlamsteedDesignation gptkb:24_Cassiopeiae
gptkbp:hasCompanion gptkb:Eta_Cassiopeiae_B
gptkbp:hostedBy gptkb:main_sequence
https://www.w3.org/2000/01/rdf-schema#label Achird
gptkbp:luminosity 1.3 times Sun
gptkbp:mass 1.02 solar masses
gptkbp:metallicity [Fe/H] = -0.28
gptkbp:orbitType 480 years
gptkbp:otherName gptkb:Eta_Cassiopeiae
gptkbp:parallax 168.01 mas
gptkbp:rightAscension 00h 49m 06.3s
gptkbp:separationFromCompanion 71 AU
gptkbp:SIMBADID gptkb:HD_4614
gptkbp:spectralType G0V
gptkbp:variableStar no
gptkbp:bfsParent gptkb:Cassiopeia
gptkb:Cassiopeia_constellation
gptkbp:bfsLayer 7