Statements (14)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:planetary_nebula
|
| gptkbp:alternativeName |
Medusa Nebula
Abell 21 |
| gptkbp:angularSize |
10 arcminutes
|
| gptkbp:apparentMagnitude |
7.7
|
| gptkbp:centralStarType |
white dwarf
|
| gptkbp:discoveredBy |
gptkb:George_O._Abell
|
| gptkbp:discoveredIn |
1955
|
| gptkbp:distanceFromEarth |
1500 light years
|
| https://www.w3.org/2000/01/rdf-schema#label |
PN G205.1+14.2
|
| gptkbp:locatedIn |
constellation Gemini
|
| gptkbp:bfsParent |
gptkb:Menzel_35_(planetary_nebula)
gptkb:Menzel_78_(planetary_nebula) |
| gptkbp:bfsLayer |
8
|