Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:binary_star_system
|
| gptkbp:apparentMagnitude |
9.06
|
| gptkbp:component |
gptkb: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
|
| 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 |
gptkb:binary_star_system
|
| gptkbp:bfsParent |
gptkb:Cygnus_OB2
|
| gptkbp:bfsLayer |
8
|
| https://www.w3.org/2000/01/rdf-schema#label |
Cygnus OB2 #5
|