Dictionary of Nomenclature of Celestial Objects
(Last update: 24-Jan-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

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