Dictionary of Nomenclature of Celestial Objects
(Last update: 22-Oct-2021)

Result of query: info cati N75]$

Details on Acronym:   [N75]
  
[N75]  (Nordstrom, 1975)= (Nr) = (Ns) 
 Write:<<[N75]  NNN>>
 N:  562
Object:O-B5 *  (SIMBAD class: Star)
  Stat:is completely incorporated in Simbad
  Note:Finding charts.    [N75] 238 = PN Ns 238. See Ns    Paper II, see also
    Paper I: [SLN74]
    Paper III: LLNS
   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>.
=E=Catalogue in electronic form as III/40
 Originof the Acronym: S = Created by Simbad, the CDS Database

Details on Acronym:   Nr
  
Nr     (Nordstrom)
  ***** Avoid the usage of Nr,  prefer [N75]

Details on Acronym:   Ns
  
Ns     (Nordstrom)
  ***** Avoid the usage of Ns,  prefer [N75]