Messier Objects

M12: Globular Star Cluster (Ophiuchus) RA: 16h 47.3m / DEC: -01° 56'.9
Instrument: 10-inch Starfinder

M12 is located in western Ophiuchus about three degrees northwest of M10. M12 presents a very subtle appearance in my 10-inch Newtonian. The view at 129X shows a 12' diameter glow featuring a central core just slightly brighter than the surrounding shell. My sketch shows scattered patches of 13th and 14th magnitude stars within the cluster. Another 15 field stars are thrown in for good measure.

M11-Wild Duck Cluster M13-Great Hercules Cluster


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Revised: February 10, 2002 [WDF]