Lewis Swift discovered NGC 6135 = Sw. IV-32 on 9 Jul 1886 and recorded "vF, vS, cE, 2 st nr." There is nothing near his position. Harold Corwin suggests NGC 6135 may apply to CGCG 320-015 = PGC 57580. This galaxy is elongated 3:1 and has a couple of stars nearby, matching Swift's description. But his position is a particularly bad fit -- 5.5 minutes of RA too far east and 5' too far north, so this identification is very uncertain.

RNGC classifies NGC 6135 nonexistent and neither CGCG, MCG or PGC label PGC 57580 as NGC 6135.

400/500mm - 18" (7/30/08): fairly faint, moderately large, elongated nearly 3:1 SW-NE, 0.9'x0.35', broad concentration. A mag 14 star is just off the west edge [30" from the center]. The identification of this galaxy with NGC 6135 is very uncertain as it differs quite a bit from Swift's position.

Notes by Steve Gottlieb