SIMBAD references

1921PASP...33..174H - Publ. Astron. Soc. Pac., 33, 174-175 (1921)

Twelve new planetary nebulae.

HUBBLE E.P.

Journal keyword(s):

Nomenclature: PN Hb NN N=10 among (Nos 1-12).

CDS comments: Nos 10, 11 are not PN.

Simbad objects: 0

Full paper

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