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gptkbp:instanceOf
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gptkb:star
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gptkbp:apparentMagnitude
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0.96
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gptkbp:BayerDesignation
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gptkb:Alpha_Scorpii
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gptkbp:catalogueNumber
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gptkb:ADS_10009
gptkb:BD−26°_4118
gptkb:WDS_J16294-2626
gptkb:HD_148478
gptkb:HIP_80763
gptkb:HR_6134
gptkb:SAO_184415
CD−26° 11374
GC 22195
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gptkbp:color
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blue-white (Antares B)
red (Antares A)
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gptkbp:constellation
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gptkb:Scorpius
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gptkbp:culturalSignificance
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important in ancient astronomy
one of the four 'royal stars' of Persia
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gptkbp:declination
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−26° 25′ 55″
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gptkbp:distanceFromEarth
|
about 550 light-years
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gptkbp:epoch
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gptkb:J2000
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gptkbp:famousFor
|
being called the 'heart of the scorpion'
being the brightest star in Scorpius
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gptkbp:FlamsteedDesignation
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gptkb:21_Scorpii
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gptkbp:hasComponent
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gptkb:Antares_A
gptkb:Antares_B
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gptkbp:hasEffectiveTemperature
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Antares A: ~3,500 K
Antares B: ~18,500 K
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gptkbp:hasOrbitalPeriod
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about 2,562 years
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gptkbp:hasPrimaryStar
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gptkb:Antares_A
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gptkbp:hasRadius
|
Antares A: ~680 R☉
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gptkbp:hasSecondaryStar
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gptkb:Antares_B
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gptkbp:hasSeparation
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about 529 AU
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gptkbp:hasVariableStarDesignation
|
VY Scorpii
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|
https://www.w3.org/2000/01/rdf-schema#label
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Alpha Scorpii system
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gptkbp:isBinaryStarSystem
|
yes
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gptkbp:isSupergiantStarSystem
|
yes
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gptkbp:locatedIn
|
gptkb:Scorpius
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gptkbp:luminosity
|
Antares A: ~75,900 L☉
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gptkbp:mass
|
Antares A: ~12 M☉
Antares B: ~7.2 M☉
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gptkbp:otherName
|
gptkb:Antares_system
α Scorpii system
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gptkbp:parallax
|
5.89 mas
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gptkbp:properMotionRA
|
−10.16 mas/yr (RA), −23.21 mas/yr (Dec)
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gptkbp:radialVelocity
|
−3.4 km/s
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gptkbp:rightAscension
|
16h 29m 24s
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gptkbp:spectralType
|
M1.5Iab-Ib + B2.5V
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gptkbp:visibleToNakedEye
|
yes
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gptkbp:bfsParent
|
gptkb:Alpha_Scorpii_B
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gptkbp:bfsLayer
|
7
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