Dictionary of Nomenclature of Celestial Objects
(Last update: 23-Sep-2016)

Result of query: info cati YGKOW$

Details on Acronym:   G
  
G      (Galaxy)
  ***** Avoid the usage of G,  prefer YGKOW
 Originof the Acronym: A = Assigned by the author(s)

Details on Acronym:   YGKOW
  
YGKOW  (Young+Gunn+Kristian+Oke+Westphal)
 Write:<<YGKOW  GN>>  

        <<YGKOW  NNN>>
 N:  5+180
Object:G + * + QSO  (SIMBAD class: Unknown = Object of unknown nature)
  Note:N=5 galaxies in the cluster of galaxies surrounding QSO 0957+561    and N=180 objects in the same cluster.
    G1 is often found named as 'the galaxy'.
    See also [RGH85], [GWC92], [BTK93], [ACL97],    [BFT97], [BLF99], [PMN99], [SOS99], [TF99],    [KFI2000b].
   Ref:=1980ApJ...241..507Y
     byYOUNG P.
, GUNN J.E., KRISTIAN J., OKE J.B., WESTPHAL J.A.
 Astrophys. J., 241, 507-520 (1980)

    The double quasar Q0957+561 A, B: a gravitational lens image formed by
    a galaxy at z=0.39.
oFig. 1b: <YGKOW GN> (Nos G1-G5)
   Ref:=1981ApJ...244..736Y
     byYOUNG P.
, GUNN J.E., KRISTIAN J., OKE J.B., WESTPHAL J.A.
 Astrophys. J., 244, 736-755 (1981)

    Q0957+561 : detailed models of the gravitational lens effect.

o<YGKOW NNN> (Nos 1-180)
 Originof the Acronym: L (1994A&A...291..411A)