Guillaume Bigourdan found IC 4615 = Big. 325 on 28 Aug 1886 while searching for NGC 6196. Because of Marth's poor position (off by 39 seconds of RA to far west and 1.6' too far north), he rediscovered this galaxy and misidentified NGC 6196 with a faint star. MCG and CGCG labeled this galaxy as IC 4615 and UGC didn't use either the NGC or IC designation. See Harold Corwin's notes for more on this field.
300/350mm - 13.1" (8/5/83): fairly faint, bright core.
13.1" (7/5/83): faint, small, round, small bright core. Brightest in group located 45' W and 24' S of M13!
400/500mm - 17.5" (6/6/86): brightest in the NGC 6196 group. Fairly faint, small, slightly elongated NW-SE, bright core, fairly faint stellar nucleus. A pair of mag 15 stars are 1.3' S and 1.3' SSE. NGC 6196 is the middle of a linear trio with IC 4614 3.0' NNW and NGC 6197 = IC 4616 4.8' SSE. An extremely faint galaxy (2MASX J16374842+3603393) lies 1.3' SW.
Notes by Steve Gottlieb