|
gptkbp:instanceOf
|
gptkb:star
|
|
gptkbp:apparentMagnitude
|
1.58
|
|
gptkbp:catalogueNumber
|
gptkb:BD+32_1582
gptkb:HD_60179
gptkb:HIP_36850
gptkb:HR_2891
gptkb:SAO_60198
|
|
gptkbp:component
|
gptkb:Castor_A
gptkb:Castor_B
gptkb:Castor_C
|
|
gptkbp:declination
|
+31° 53′ 18″
|
|
gptkbp:discoveredBy
|
gptkb:James_Pound
|
|
gptkbp:discoveredIn
|
1718
|
|
gptkbp:distanceFromEarth
|
approximately 51 light-years
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Castor binary system
|
|
gptkbp:locatedIn
|
gptkb:Gemini_constellation
|
|
gptkbp:luminosity_(Castor_A)
|
37 times Sun
|
|
gptkbp:luminosity_(Castor_B)
|
33 times Sun
|
|
gptkbp:luminosity_(Castor_C)
|
0.06 times Sun
|
|
gptkbp:mass_(Castor_A)
|
2.15 solar masses
|
|
gptkbp:mass_(Castor_B)
|
2.17 solar masses
|
|
gptkbp:mass_(Castor_C)
|
0.6 solar masses
|
|
gptkbp:orbitalPeriod_(A-B)
|
approximately 467 years
|
|
gptkbp:orbitalPeriod_(Aa-Ab)
|
9.2 days
|
|
gptkbp:orbitalPeriod_(Ba-Bb)
|
2.9 days
|
|
gptkbp:orbitalPeriod_(Ca-Cb)
|
0.8 days
|
|
gptkbp:otherName
|
gptkb:Alpha_Geminorum
|
|
gptkbp:platform
|
binary star system
|
|
gptkbp:rating
|
6
|
|
gptkbp:rightAscension
|
07h 34m 36s
|
|
gptkbp:spectralType
|
A1V (Castor A)
A2V (Castor B)
M5V (Castor C)
|
|
gptkbp:variableStar
|
yes (Castor C is a flare star)
|
|
gptkbp:visibleToNakedEye
|
yes
|
|
gptkbp:bfsParent
|
gptkb:Castor_B
|
|
gptkbp:bfsLayer
|
7
|