|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:age
|
12.5 million years
|
|
gptkbp:alsoKnownAs
|
gptkb:Spica
|
|
gptkbp:apparentMagnitude
|
0.97
|
|
gptkbp:binarySystem
|
true
|
|
gptkbp:catalogueNumber
|
gptkb:ADS_8810
gptkb:GC_18132
gptkb:BD-10_3672
gptkb:FK5_494
gptkb:HD_116658
gptkb:HIP_65474
gptkb:HR_5056
gptkb:SAO_157923
gptkb:WDS_J13252-1109
|
|
gptkbp:colorIndexB-V
|
-0.23
-0.93
|
|
gptkbp:component
|
gptkb:Alpha_Virginis_A
gptkb:Alpha_Virginis_B
|
|
gptkbp:constellation
|
gptkb:Virgo
|
|
gptkbp:culturalSignificance
|
important in ancient Egyptian and Greek astronomy
|
|
gptkbp:declination
|
-11° 09′ 40.75″
|
|
gptkbp:diameter
|
7.47 solar radii (primary)
|
|
gptkbp:discoveredBy
|
ancient astronomers
|
|
gptkbp:distanceFromEarth
|
250 light years
|
|
gptkbp:eclipticLatitude
|
-2.09°
203.67°
|
|
gptkbp:equatorialCoordinates
|
RA 13h 25m 11.579s, Dec -11° 09′ 40.75″
|
|
gptkbp:hasExoplanet
|
no
|
|
gptkbp:hasViewOf
|
both hemispheres
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Virginis
|
|
gptkbp:IAUApprovedName
|
gptkb:Spica
|
|
gptkbp:isNavigationalStar
|
true
|
|
gptkbp:luminosity
|
12,100 times Sun (primary)
|
|
gptkbp:mass
|
10.25 solar masses (primary)
|
|
gptkbp:metallicity
|
-0.23 [Fe/H]
|
|
gptkbp:notableFor
|
brightest star in Virgo
|
|
gptkbp:orbitType
|
4.0145 days
|
|
gptkbp:parallax
|
12.44 mas
|
|
gptkbp:partOf
|
gptkb:Virgo_constellation
|
|
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
|
|
gptkbp:spectralType
|
B1III-IV + B2V
|
|
gptkbp:temperature
|
22,400 K (primary)
|
|
gptkbp:variableType
|
ellipsoidal variable
|
|
gptkbp:bfsParent
|
gptkb:Spica
|
|
gptkbp:bfsLayer
|
6
|