Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:alternativeName |
Emission_nebula
H_II_region Herbig-Haro_object Herbig–Haro_object Wolf–Rayet_nebula bipolar_nebula bipolar_planetary_nebula diffuse_nebula emission_nebula molecular_cloud reflection_nebula star-forming_region |
| https://www.w3.org/2000/01/rdf-schema#label |
planetary nebula
|