Disambiguation evidence for H II regions via surface form

"Sharpless catalog of H II regions"

Triples (1)

Triples where some other subject referred to this entity as "Sharpless catalog of H II regions".

NGC 281 (Pacman Nebula) isIncludedInCatalogue
"Sharpless catalog of H II regions"
↳ resolves to H II regions
surface form: NGC 281