NGC/IC Project Restoration Effort

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NGC6573

 

Basic Information


Location and Magnitude


Right Ascension: 18:13:41.5
Declination: -22:7:8
Constellation: SGR
Visual Magnitude:

Historic Information


Discoverer: Herschel J.
Year of discovery: 1830
Discovery aperture: 18.3

Observational


Summary description: Cl, st vS
Sub-type: *Grp

Corwin's Notes

===== NGC 6573 may possibly be the Milky Way star cloud about 30 seconds following JH's position, a choice I made on the POSS1 prints. It is, however -- based on Jeffrey Corder's 17.5-inch observation -- much more likely to be the large scattered clump of clumps of stars centered a bit southeast of JH's position. His description, from one night's observation at Slough, reads, "A cluster composed of 2 or 3 clusters of very small stars, and loose large ones. Perhaps an outlier of VIII. 31 [N6583]." He marks the RA with a plus/minus sign. I had written earlier that "[NGC 6573] is a candidate for observation at the eyepiece." Jeff's description, sent to me in July 2009, reads, F, vL scattered cl of sts in 2 or 3 groups, mags 13-14.5 in 'L-shape', in v rich Milky Way field, 15' x 15' in size. This is almost certainly the correct object. Wolfgang and Andris have chosen the western-most clump of stars in it as the NGC object, but JH's description, and Jeff's, point to a much larger object.

Steve's Notes

===== NGC 6573 24" (7/7/13): at 125x this is a nice 12' field (not a cluster) with the stars mostly arranged in three distinct groups. On the west side is an 8' string oriented NW-SE with a clump at the NW end. On the north side is more scattered circular group of a couple dozen stars. Finally on the east side is another elongated group oriented NW-SE with the brighter stars on the SE end. This field is located 25' due west of the rich cluster NGC 6583.