John Herschel independently discovered NGC 3528 = h3316 on 22 Mar 1835 and recorded "F; S; R; pslbM; 20". The preceding of 2 [with NGC 3529]." His position is just 6 tsec west of ESO 570-006 = MCG -03-28-037.

WH discovered this galaxy on 8 Mar 1790 (sweep 936) and recorded it as H. III-824 (later GC 2281 and NGC 3497). His position is within 2' (typical error) of ESO 570-006, but the position in the GC, which was copied into the NGC, is 6 min too far west (reduction or copying error). Ormond Stone and Lewis Swift also independently discovered the same galaxy, so there are four aliases in the NGC/IC! Namely, NGC 3497 = NGC 3528 = NGC 3525 = IC 2624. NGC 3528 is the primary designation in modern catalogues, despite the earlier discovery of NGC 3497. See notes on NGC 3497 for more on the identities.

400/500mm - 17.5" (5/4/02): moderately bright, fairly large contains a bright core ~45" diameter increasing to a stellar nucleus. Surrounding the core is a fairly large ill-defined halo elongated 3:2 SW-NE, ~2.5'x1.5' with a low surface brightness. A couple of faint stars are superimposed on the south side. This galaxy may hold the record for the most NGC/IC aliases as NGC 3528 = NGC 3525 = NGC 3497 = IC 2624. Forms a pair with NGC 3529 5' S.

Notes by Steve Gottlieb