Statements (18)
Predicate | Object |
---|---|
gptkbp:instanceOf |
OB association
|
gptkbp:age |
5 million years
|
gptkbp:contains |
gptkb:Cygnus_X-1
gptkb:B-type_stars gptkb:O-type_stars young stars variable stars massive stars supergiant stars stellar clusters |
gptkbp:discoveredBy |
gptkb:William_W._Morgan
|
gptkbp:distanceFromEarth |
about 7,000 light-years
|
https://www.w3.org/2000/01/rdf-schema#label |
Cygnus OB3 association
|
gptkbp:locatedIn |
gptkb:Cygnus_constellation
|
gptkbp:notableFor |
contains Cygnus X-1, a black hole candidate
|
gptkbp:partOf |
gptkb:Milky_Way_galaxy
|
gptkbp:bfsParent |
gptkb:Constellation_Cygnus
|
gptkbp:bfsLayer |
7
|