Dictionary of Nomenclature of Celestial Objects
(Last update: 02-Nov-2023)

Result of query: info cati NGC 6656$

Details on Acronym:   NGC 6656
  
NGC 6656
 Write:<<NGC 6656  NNNN # 4 digits>>
 N:  121+108+119+110+25
Object:*inCl
   Rem:Format 'NNNN' (always 4 digits), where the first digit
   stands for the quadrant I to V.
   ex.: quadrant IV, No. 110 = NGC 6656 4110,
   quadrant I, No. 1 = NGC 6656 1001.

   Quadrant V, Center, added in 1975MNRAS.171..647L, N=25.
   Ref:=1959AJ.....64...28A
     byARP H.C.
, MELBOURNE W.G.
 Astron. J., 64, 28-32 (1959)

    Color-magnitude diagram for the globular cluster M 22.

oTable I: <Cl* NGC 6656 ARP a> (Nos a-h). Table II: <NGC 6656 NNNN>    (always 4 digits) N=121+108+119+110.
   Ref:=1975MNRAS.171..647L
     byLLOYD EVANS T.

 Mon. Not. R. Astron. Soc., 171, 647-657 (1975)

    Near-infrared photometry of globular clusters. IV. The metal poor
    cluster NGC 6656 (M 22).
o<NGC 6656 NNNN> continues 1959AJ.....64...28A. The format is always a    4 digits one, first digit is a roman numeral
=E=Catalogue in electronic form as <J/AJ/64/28/>

Details on Acronym:   Cl* NGC 6656 AM
  
Cl* NGC 6656 AM (Arp+Melbourne)
  ====>Equivalent to: NGC 6656