ζ Ursae Majoris

URI: https://gptkb.org/entity/ζ_Ursae_Majoris
GPTKB entity
Statements (31)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:age 370 million years
gptkbp:alsoKnownAs gptkb:Alcor
gptkbp:apparentMagnitude 4.01
gptkbp:BayerDesignation gptkb:ζ_Ursae_Majoris
gptkbp:binarySystem yes
gptkbp:catalogueNumber gptkb:HR_5054
gptkb:HIP_65477
gptkbp:component gptkb:Big_Dipper_asterism
gptkbp:constellation gptkb:Ursa_Major
gptkbp:culturalSignificance Test of eyesight in various cultures
gptkbp:declination +54° 59′ 17″
gptkbp:diameter 1.8 solar radii
gptkbp:distanceFromEarth 81 light years
gptkbp:FlamsteedDesignation gptkb:80_Ursae_Majoris
gptkbp:hasCompanion gptkb:Mizar
gptkbp:hasExoplanet no
https://www.w3.org/2000/01/rdf-schema#label ζ Ursae Majoris
gptkbp:luminosity 14 times solar luminosity
gptkbp:mass 1.8 solar masses
gptkbp:metallicity −0.02 [Fe/H]
gptkbp:parallax 40.19 mas
gptkbp:properMotionRA 121.23 mas/yr
gptkbp:rightAscension 13h 25m 13.5s
gptkbp:separationFromMizar 12 arcminutes
gptkbp:SIMBADID gptkb:HD_116842
gptkbp:spectralType A5V
gptkbp:temperature 8,300 K
gptkbp:visibleToNakedEye yes
gptkbp:bfsParent gptkb:Zeta_Major
gptkbp:bfsLayer 7