Lewis Swift discovered NGC 6594 = Sw. I-87, along with NGC 6597, on 14 Jun 1885 and recorded "vF; vS; R; between a F and a more distant B *. 2nd of 8." His position is at the north edge of CGCG 301-017 = PGC 61482 and the "more distant B *" is mag 8.2 HD 167347, which lies 6' northeast near NGC 6597.

400/500mm - 17.5" (6/11/88): extremely faint, very small, slightly elongated ~E-W. Located 5.8' SW of mag 7.8 SAO 177948. Second in a group with NGC 6597 8.7' ENE.

600/800mm - 24" (7/19/12): fairly faint, fairly small, oval 4:3 E-W, 24"x18". Second in a group of 8 NGC galaxies (and one IC), with NGC 6597 8.7' ENE. Mag 8.2 HD 167347 lies nearly between these two galaxies.

Notes by Steve Gottlieb