NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC6558

Basic Information

Location and Magnitude

Right Ascension: 18:10:18.4
Declination: -31:45:47
Constellation: SGR
Visual Magnitude: 8.6

Historic Information

Discoverer: Herschel J.
Year of discovery: 1834
Discovery aperture: 18.3

Observational

Summary description: globular, pB, pL, R, glbM, rrr, st 16
Sub-type: GCL

Steve's Notes

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NGC 6558

17.5" (7/29/92): moderately bright, small, 1.5'-2.0' diameter, irregular outline.  Has a fairly smooth halo with a small bright core offset to the north side with a stellar nucleus sometimes visible.  Five or six very faint mag 14.5-15 stars are embedded within the halo.  Located in a rich star field.  

8" (7/31/86): faint, small, round, six faint stars lie to the south.