William Herschel discovered NGC 5328 = H III-923 = h3543 on 5 May 1793 (sweep 1041) and recorded "vF; vS; R; lbM. 300 shewed it very well" JH made two observations from the Cape of Good Hope: "pB; R; lbM; 20" and "B; lE; sbM; 20". Lewis Swift discovered nearby NGC 5330.

300/350mm - 13.1" (5/26/84): fairly bright, small, slightly elongated ~E-W, small bright nucleus. Located 19' WNW of mag 6 SAO 182065.

600/800mm - 24" (6/1/13): at 225x appeared bright, fairly small, oval 3:2 E-W, 30"x20", sharply concentrated with a very bright, very small nucleus. Brightest in a small cluster (Klemola 28) of early-type galaxies with NGC 5330 1.7' NE. Several of the galaxies are aligned in a NE to SW chain including PGC 3094715 2.8' NE and ESO 445-70 6.0' NE. PGC 3094715 appeared faint, very small, round, 12" diameter.

Notes by Steve Gottlieb