Dictionary of Nomenclature of Celestial Objects
(Last update: 26-Sep-2023)

Result of query: info cati PN PM 2-NN$

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Details on Acronym:   PM
  
PM     (Preite-Martinez)
 Write:<<PN PM  1-NNN>>  

        <<PN PM  2-NN>>
 N:  340+48
Object:Poss. PN  (SIMBAD class: PlanetaryNeb_Candidate = Planetary Nebula Candidate)
  Note:Table IV: PM 1-, list 1, N=340,    sources with a high probability of being a PN
    Table V: PM 2-, list 2, N=48,    sources with a high probability of being non-PN,    or only PN-related objects.
   Ref:=1988A&AS...76..317P
     byPREITE-MARTINEZ A.

 Astron. Astrophys., Suppl. Ser., 76, 317-330 (1988)

    Possible new planetary nebulae in the IRAS point source catalogue.

oTables IV and V list Planetary Nebula Candidates selected on IRAS colours. The    historical choice of the acronym PN PM , where PN means confirmed Planetary    Nebula, was thus not correct. This acronym PN PM has been kept only on confirmed    PNe (83 in January 2023). A new acronym [P88b] PM N-NNN is going to be created    in SIMBAD, with a default object type PN?. Until it is ready, please use the    IRAS identifier.
oTable IV: <[P88b] PM 1-NNN> (Nos 1-340) = <PN PM 1-NNN> (Nos 1-340). Table V:    <[P88b] PM 2-NN> (Nos 1-48) = <PN PM 2-NN> (Nos 1-48).
=E=Catalogue in electronic form as <J/A+AS/76/317/>
 Originof the Acronym: A = Assigned by the author(s)