William Herschel discovered NGC 5669 = H II-79 on 19 Mar 1784 (sweep 179) and recorded "F, L, R, lbM, r, about 4 or 5' diameter. CH's reduced position is 45 seconds east of UGC 9353. There were no other observations prior to the NGC, but Bigourdan measured an accurate position on 9 May 1894 that is given in the IC 2 Notes.

200/250mm - 8" (3/24/84): very faint, fairly small, very diffuse, round, even surface brightness.

400/500mm - 17.5" (3/12/94): moderately bright, fairly large, elongated 3:2 SW-NE. Broad concentration to a large, slightly brighter core but no nucleus. The core appears offset to the north side. Forms a pair with CGCG 075-063 6.2' WNW.

Notes by Steve Gottlieb