Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:planetary_nebula
|
| gptkbp:alsoKnownAs |
gptkb:NGC_7023
|
| gptkbp:angularSize |
18 arcminutes
|
| gptkbp:apparentMagnitude |
6.8
|
| gptkbp:catalogue |
gptkb:Caldwell_4
LBN 487 |
| gptkbp:contains |
gptkb:open_cluster
|
| gptkbp:declination |
+68° 10′ 10″
|
| gptkbp:discoveredBy |
gptkb:Sir_William_Herschel
|
| gptkbp:discoveredIn |
October 18, 1794
|
| gptkbp:distanceFromEarth |
1,300 light-years
|
| gptkbp:epoch |
gptkb:J2000
|
| gptkbp:features |
dark dust lanes
blue reflection nebula |
| gptkbp:hasViewOf |
gptkb:Northern_Hemisphere
|
| https://www.w3.org/2000/01/rdf-schema#label |
Iris Nebula
|
| gptkbp:illuminatedBy |
star HD 200775
|
| gptkbp:locatedIn |
gptkb:constellation_Cepheus
|
| gptkbp:partOf |
gptkb:Milky_Way_Galaxy
|
| gptkbp:rightAscension |
21h 01m 35.6s
|
| gptkbp:type |
gptkb:planetary_nebula
|
| gptkbp:bfsParent |
gptkb:NGC_7023
|
| gptkbp:bfsLayer |
7
|