Spica

GPTKB entity

Statements (51)
Predicate Object
gptkbp:instanceOf gptkb:star
gptkbp:apparentMagnitude 0.97
-3.55
gptkbp:catalogueNumber gptkb:ADS_8816
gptkb:BD-10_3672
gptkb:FK5_494
gptkb:GC_18130
gptkb:HD_116658
gptkb:HIP_65474
gptkb:HR_5056
gptkb:SAO_157923
gptkb:WDS_J13252-1109
gptkbp:colorIndexB-V -0.23
-0.93
gptkbp:constellation gptkb:Virgo
gptkbp:culturalSignificance important in ancient Greek and Roman mythology
associated with the goddess of wheat and agriculture
gptkbp:declination -11° 09′ 40.75″
gptkbp:diameter 3.64 solar radii (secondary)
7.47 solar radii (primary)
gptkbp:discoveredBy known since antiquity
gptkbp:discoveryEpoch prehistory
gptkbp:distanceFromEarth 250 light years
gptkbp:eclipticProximity close to the ecliptic
https://www.w3.org/2000/01/rdf-schema#label Spica
gptkbp:luminosity 1,500 times Sun (secondary)
12,100 times Sun (primary)
gptkbp:mass 10.25 solar masses (primary)
7.0 solar masses (secondary)
gptkbp:metallicity -0.23 [Fe/H]
gptkbp:notableFor brightest star in Virgo
one of the 20 brightest stars in the night sky
gptkbp:orbitType 4.0145 days
gptkbp:otherName gptkb:Alpha_Virginis
gptkbp:parallax 12.44 mas
gptkbp:properMotionRA -31.73 mas/yr
-42.36 mas/yr
gptkbp:radialVelocity -1.1 km/s
gptkbp:rightAscension 13h 25m 11.579s
gptkbp:rotationPeriod 199 km/s (primary)
87 km/s (secondary)
gptkbp:spectralType B1 III-IV + B2 V
gptkbp:stellarSystemType binary star system
gptkbp:temperature 18,500 K (secondary)
22,400 K (primary)
gptkbp:usedIn gptkb:navigation
astrology
gptkbp:variableType gptkb:Beta_Cephei_variable
gptkbp:bfsParent gptkb:binary_stars
gptkb:Saint_Seiya
gptkbp:bfsLayer 5