Planetary nebula

https://www.wikidata.org/wiki/Q13632

Field Hierarchy

Parent
Computer science 54.8M papers	Physics 31.7M papers	Astronomy 2.5M papers	Computer vision 2.1M papers
Astrophysics 1.2M papers		Stars 354k papers
Current
Planetary nebula 10.9k papers
Child
Emission nebula 3,253 papers	Reflection nebula 1,703 papers	Protoplanetary nebula 1,675 papers	Bipolar nebula 607 papers

Trends

Notes

History