Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:contains_star |
a massive star
|
| gptkbp:discovered_by |
gptkb:NASA
|
| gptkbp:distance_from_earth |
approximately 10,000 light years
|
| gptkbp:first_appearance |
gptkb:1971
|
| gptkbp:has_luminosity |
varies with time
|
| https://www.w3.org/2000/01/rdf-schema#label |
Cygnus X-18
|
| gptkbp:is_observed_in |
gptkb:Chandra_X-ray_Observatory
|
| gptkbp:located_in |
gptkb:Cygnus_constellation
|
| gptkbp:mass |
greater than 10 solar masses
|
| gptkbp:type |
gptkb:supermassive_black_hole
|
| gptkbp:bfsParent |
gptkb:Cygnus
|
| gptkbp:bfsLayer |
5
|