Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:planetary_nebula
|
| gptkbp:alsoKnownAs |
gptkb:Crescent_Nebula
|
| gptkbp:angularSize |
18×12 arcminutes
|
| gptkbp:apparentMagnitude |
7.4
|
| gptkbp:catalogueNumber |
gptkb:NGC_6888
|
| gptkbp:centralStarType |
gptkb:WR_136
|
| gptkbp:createdBy |
stellar wind from WR 136
|
| gptkbp:declination |
+38° 21′ 18″
|
| gptkbp:discoveredBy |
gptkb:William_Herschel
|
| gptkbp:discoveredIn |
1792
|
| gptkbp:distanceFromEarth |
about 5,000 light-years
|
| gptkbp:epoch |
gptkb:J2000
|
| gptkbp:hasViewOf |
amateur telescopes
|
| gptkbp:locatedIn |
gptkb:Cygnus_OB1_association
gptkb:constellation_Cygnus |
| gptkbp:notableFor |
emission of H-alpha light
shell structure |
| gptkbp:partOf |
gptkb:Milky_Way
|
| gptkbp:rightAscension |
20h 12m 6s
|
| gptkbp:bfsParent |
gptkb:Cygnus
|
| gptkbp:bfsLayer |
6
|
| http://www.w3.org/2000/01/rdf-schema#label |
NGC 6888
|