Statements (23)
Predicate | Object |
---|---|
gptkbp:instanceOf |
binary star system
|
gptkbp:apparentMagnitude |
9.06
|
gptkbp:component |
B-type star
O-type supergiant possible Wolf-Rayet star |
gptkbp:constellation |
gptkb:Cygnus
|
gptkbp:declination |
+41° 18′ 18″
|
gptkbp:discoveredBy |
gptkb:Stewart_Sharpless
|
gptkbp:discoveredIn |
1953
|
gptkbp:distanceFromEarth |
1,700 parsecs
|
gptkbp:epoch |
gptkb:J2000
|
https://www.w3.org/2000/01/rdf-schema#label |
Cygnus OB2 #5
|
gptkbp:locatedIn |
gptkb:Cygnus_OB2_association
|
gptkbp:luminosity |
over 1,000,000 times Sun
|
gptkbp:mass |
over 100 solar masses (system total)
|
gptkbp:otherName |
BD+40°4220
V729 Cyg |
gptkbp:rightAscension |
20h 32m 22.4s
|
gptkbp:spectralType |
O6.5-7 Ia
O7I |
gptkbp:variableType |
binary star system
|
gptkbp:bfsParent |
gptkb:Cygnus_OB2
|
gptkbp:bfsLayer |
7
|