Dictionary of Nomenclature of Celestial Objects
(Last update: 05-Dec-2023)

Result of query: info cati PN Ns$

Details on Acronym:   Ns
  
Ns     (Nordstrom)
 Write:<<PN Ns  NNN>>
 N:  1
Object:PN  (SIMBAD class: PlanetaryNeb = Planetary Nebula)
  Stat:is completely incorporated in Simbad
  Note:PN Ns 238 = PN G254.6+00.2 = PK 254+00 1
   Ref:=1975A&AS...21..193N
     byNORDSTROM B.

 Astron. Astrophys., Suppl. Ser., 21, 193-239 (1975)

    A spectral survey of the Southern Milky Way. II. O-B5 stars, l=237 to
    281.
oTable 3: <[N75] NNN> N=562 among (Nos 1-568). [N75] 238 = <PN Ns 238>.