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gptkbp:instanceOf
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gptkb:star
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gptkbp:age
|
about 50–300 million years
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gptkbp:apparentMagnitude
|
1.35
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gptkbp:brightestStar
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gptkb:Regulus_A
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gptkbp:cataloguedIn
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gptkb:Henry_Draper_Catalogue
gptkb:Hipparcos_Catalogue
gptkb:Bright_Star_Catalogue
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gptkbp:contains
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gptkb:Regulus_A
gptkb:Regulus_B
gptkb:Regulus_C
gptkb:Regulus_D
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gptkbp:containsPlanet
|
true
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gptkbp:declination
|
+11° 58′ 02″
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gptkbp:distanceFromEarth
|
about 79 light years
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gptkbp:flattenedShape
|
Regulus A is oblate due to rapid rotation
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gptkbp:hasCompanion
|
K-type star (Regulus B)
M-type star (Regulus C)
white dwarf (Regulus D)
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|
https://www.w3.org/2000/01/rdf-schema#label
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Regulus star system
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gptkbp:locatedIn
|
constellation Leo
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gptkbp:luminosity
|
about 288 times solar (Regulus A)
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gptkbp:massOfPrimary
|
about 3.8 solar masses (Regulus A)
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gptkbp:notableFor
|
one of the brightest stars in the night sky
rapidly rotating primary star
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gptkbp:otherName
|
gptkb:Alpha_Leonis
gptkb:BD+12_2056
gptkb:HD_87901
gptkb:HIP_49669
gptkb:HR_3982
gptkb:SAO_98967
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gptkbp:radiusOfPrimary
|
about 3.1 solar radii (Regulus A)
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gptkbp:rightAscension
|
10h 08m 22.3s
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gptkbp:rotationPeriod
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about 320 km/s (Regulus A)
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gptkbp:spectralType
|
B7V (Regulus A)
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gptkbp:visibleToNakedEye
|
yes
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gptkbp:bfsParent
|
gptkb:Regulus_C
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gptkbp:bfsLayer
|
6
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