William Herschel discovered NGC 6389 = H II-901 on 29 Jun 1799 (sweep 1090) and recorded "F, S, iF, er, about 2' long." CH's reduced position is 20 seconds west of UGC 10893. Christian Peters independently found this galaxy on 7 Jul 1878 while observing comet 1878a. His position is a very good match with UGC 10893.

400/500mm - 17.5" (8/1/89): moderately bright, moderately large, oval NW-SE, sharp small bright core. A mag 16 star is superimposed on the south side. Several mag 11.5-12 stars are near, the closest 2.3' SE. Located 15' WNW of mag 5.7 SAO 102917.

Notes by Steve Gottlieb