Messier Objects

M70: Globular Star Cluster (Sagittarius) RA: 18h 43.2m / DEC: -32° 17'.5
Instrument: 10-inch Starfinder

Point your telescope halfway between Epsilon and Zeta Sagittarii and you'll likely find M70 in the eyepiece. This is one of three globular star clusters to be found along the base of the Teapot asterism in the Archer. M70 appears 5' in diameter with a handful of stars resolved when viewed at 129X in my 10-inch Starfinder. With an integrated visual magnitude of 7.8, this is a fine object for small apertures. The sketch at left records 29 field stars including an 11th magnitude pair at the northern edge of the cluster.

M69 M71


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Revised: February 14, 2002 [WDF]