NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC6369

 

Basic Information


Location and Magnitude


Right Ascension: 17:29:20.4
Declination: -23:45:33
Constellation: OPH
Visual Magnitude: 11.4

Historic Information


Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7

Observational


Summary description: !! annular, pB, S, R
Sub-type: PN

Steve's Notes

===== NGC 6369 18" (7/14/07): striking view of this annular planetary at 280x. The 30" halo is punctured by a relatively large 18" hole. The rim is noticeably uneven in surface brightness with a brighter arc along the northern side. Spectacular at 700x and the brighter northern rim has a couple of very small brighter spots. 18" (7/22/06): beautiful view at 435x. The 30" annular ring is brightest along a "C" shaped section from NE moving clockwise to the SW and locally brighter at the NW end. The central hole is round, well-defined and relatively large compared to the rim. 17.5" (6/30/00): at 500x this planetary has a beautiful annular appearance with a 25-30" halo perforated by a 12" dark hole. The northern rim is noticeably brighter with a nearly stellar spot near its center. Located 31' NW of mag 4.8 51 Ophiuchi. 17.5" (6/5/99): bright, beautiful annular planetary at 380x with a well-defined dark central hole. The rim is clearly brighter along the north edge and slightly weaker on the following edge. 17.5" (7/4/86): bright, fairly small, about 30" diameter, green-blue color. Appears as a perfect annular ring at 286x with a 15" central "hole". No central star visible. 13.1" (8/5/83): use at least 220x to clearly resolve the annularity. 13.1" (7/16/82): beautiful ring at 214x and UHC filter, small, slightly elongated. Visible with direct vision as annular. The north edge of the rim appears brighter at 312x.