Dictionary of Nomenclature of Celestial Objects
(Last update: 15-Sep-2023)

Result of query: info cati PN Hb$

Details on Acronym:   Hb
  
Hb     (Hubble)= (Hub) = (Hubble) 
 Write:<<PN Hb  NN>>
 N:  9
Object:PN  (SIMBAD class: PlanetaryNeb = Planetary Nebula)
  Stat:is completely incorporated in Simbad
  Note:Hb 10, 11 are not PN
   Ref:=1921PASP...33..174H
     byHUBBLE E.P.

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

    Twelve new planetary nebulae.

oNos 10, 11 are not PN.
o<PN Hb NN> N=10 among (Nos 1-12).

Details on Acronym:   Hub
  
Hub    (Hubble)
  ***** Avoid the usage of Hub,  prefer Hb

Details on Acronym:   Hubble
  
Hubble (Hubble)
  ***** Avoid the usage of Hubble,  prefer Hb