Regulus A

URI: https://gptkb.org/entity/Regulus_A
GPTKB entity
Statements (32)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:age ~150 million years
gptkbp:apparentMagnitude 1.35
gptkbp:declination +11° 58′ 02″
gptkbp:diameter 3.9 solar radii
gptkbp:discoveredBy ancient astronomers
gptkbp:distanceFromEarth 79 light years
gptkbp:hasCompanion gptkb:Regulus_Ab
gptkbp:locatedIn constellation Leo
gptkbp:luminosity 288 times solar luminosity
gptkbp:mass 3.8 solar masses
gptkbp:metallicity [Fe/H] = -0.52
gptkbp:notableFeature one of the brightest stars in the night sky
brightest star in Leo
rapid rotation causes oblate shape
gptkbp:otherName gptkb:HD_87901
gptkb:HIP_49669
gptkb:HR_3982
gptkb:Alpha_Leonis_A
gptkbp:parallax 41.13 mas
gptkbp:partOf gptkb:Regulus_system
gptkbp:platform gptkb:binary_star_system
gptkbp:properMotionRA -249.93 mas/yr
5.59 mas/yr
gptkbp:rightAscension 10h 08m 22.3s
gptkbp:rotationPeriod ~320 km/s
gptkbp:spectralType B7V
gptkbp:temperature 12,460 K
gptkbp:variableStar no
gptkbp:bfsParent gptkb:Regulus
gptkbp:bfsLayer 6
https://www.w3.org/2000/01/rdf-schema#label Regulus A