Dictionary of Nomenclature of Celestial Objects
(Last update: 07-Aug-2020)

Result of query: info cati NBGG$

Details on Acronym:   NBGG
   NBGG (Nearby Group of G)= (T) Write:<<NBGG xx+yy +zz>>
<<NBGG xx+yy>> N: 336 Object:Group of G  (SIMBAD class: GroupG = Group of Galaxies) Note:Group of galaxies from the NBG catalog.
format: a galaxy is assigned to structure identified by 3 two digits numbers: The galaxy is in the xx cloud or spur, the -yy group or +yy first-level assoc., and the +zz second-level assoc. xx : first digit from 7 general regions. Second digit = 0 for a galaxy in a region which cannot be associated with any cloud
yy : If the galaxy is not in a group or association yy = 0
zz : If zz not given, then zz is assumed to be the same as |yy| See also NBG: NBG galaxies are members of 36 clouds, 254 associations and 336 groups of two or more members. Auth.:TULLY R.B.+ Auth.:TULLY R.B. Ref:=1987ApJ...321..280T byTULLY R.B. Astrophys. J., 321, 280-304 (1987) Nearby groups of galaxies. II. An all-sky survey within 3000 kilometers per second. oTable 2: <NBGG xx+yy +zz> N=340 =E=Catalogue in electronic form as VII/145 Originof the Acronym: S = Created by Simbad, the CDS Database
Details on Acronym:   T
   T (Tully) ***** Avoid the usage of T, prefer NBGG Originof the Acronym: L = Found in the literature

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