NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC6171
Basic Information
Location and Magnitude
Right Ascension: 16:32:31.9
Declination: -13:3:11
Constellation: OPH
Visual Magnitude: 7.8
Historic Information
Discoverer: Mechain
Year of discovery: 1782
Discovery aperture: 3.0
Observational
Summary description: globular, L, vRi, vmC, R, rrr
Sub-type: X
Steve's Notes
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NGC 6171
18" (7/26/06): beautifully resolved at 325x and framed by three mag 11.5-12.5 stars to the east, west and south. In the halo, roughly 35-40 stars were resolved and in addition the bright 1.5' core was partially resolved into a large number of densely packed stars. The cluster extends roughly to 6'x4.5', reaching the bright stars off the east and west side and elongated E-W at least 4:3.
17.5" (7/10/99): this bright globular was well resolved at 220x, with a ~5'x3' halo elongated in an E-W orientation although the sharply defined core is circular and ~2' in diameter. Enclosing the globular on the west, east and south sides are brighter mag 11.5-12.5 stars. Roughly 30 stars are scattered throughout the outer halo at 280x and a couple of dozen densely packed stars overlay the core of the globular in steady moments.
13" (6/19/82): bright core with several faint stars resolved in the halo and a few stars resolved at the edge of the core.
8": bright core, fainter halo, mottled. A few stars are visible at the northwest edge.
15x50 IS binoculars: faint but not difficult.