CDS.headStuff2 Dictionary of Nomenclature of Celestial Objects
(Last update: 08-Oct-2021)
Result of query: info cati PN$

Details on Acronym:   G
   G (Galactic PN) ***** Avoid the usage of G, prefer PN Originof the Acronym: L = Found in the literature
Details on Acronym:   PN
   PN (Planetary Nebula)= (G) = (PNG) Write:<<PN GLLL.l+BB.b>> N: 5465 Object:PN  (SIMBAD class: PN = Planetary Nebula) Note:Galactic PN.
Updates Perek+Kohoutek, 1967.
A complete rediscussion of the status of galactic planetary nebula candidates, and a collection of data, references, identif. charts for 1143 true or probable PN.
Perek+Kohoutek catalog remains interesting for all references earlier than 1965
Two Supplements have been published in 1996 and 2000.