Statements (28)
Predicate | Object |
---|---|
gptkbp:instanceOf |
binary star system
|
gptkbp:apparentMagnitude |
4.91
|
gptkbp:component |
VV Cephei A
VV Cephei B |
gptkbp:declination |
+63° 37′ 32″
|
gptkbp:discoveredBy |
gptkb:William_Herschel
|
gptkbp:discoveredIn |
1784
|
gptkbp:distanceFromEarth |
5000 light years
|
gptkbp:epoch |
gptkb:J2000
|
https://www.w3.org/2000/01/rdf-schema#label |
VV Cephei
|
gptkbp:locatedIn |
gptkb:constellation_Cepheus
|
gptkbp:orbitType |
20.3 years
|
gptkbp:otherDesignation |
gptkb:SAO_33626
BD+60 2636 HD 208816 HIP 108317 |
gptkbp:rightAscension |
21h 56m 39.1s
|
gptkbp:spectralType |
M2 Iab + B0-2 V
|
gptkbp:variableStar |
Eclipsing binary
|
gptkbp:VV_Cephei_A_instanceOf |
red supergiant
|
gptkbp:VV_Cephei_A_luminosity |
200,000 times Sun
|
gptkbp:VV_Cephei_A_mass |
18 solar masses
|
gptkbp:VV_Cephei_A_radius |
1050 solar radii
|
gptkbp:VV_Cephei_B_instanceOf |
blue main-sequence star
|
gptkbp:VV_Cephei_B_luminosity |
25,000 times Sun
|
gptkbp:VV_Cephei_B_mass |
8 solar masses
|
gptkbp:bfsParent |
gptkb:constellation_Cepheus
|
gptkbp:bfsLayer |
7
|