bula | |
Stat: | is completely incorporated in Simbad |
Ref: | =1921PASP...33..174H |
by | HUBBLE E.P. |
Publ. Astron. Soc. Pac., 33, 174-175 (1921) | |
Twelve new planetary nebulae. | |
o | Nos 10, 11 are not PN. |
o | <PN Hb NN> N=10 among (Nos 1-12). |
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