Édouard Stephan discovered NGC 3545 = St XIII-61 on 26 Mar 1884. His position matches the double system MCG +06-25-016/017 or (R)NGC 3545A/B. The individual components appear to be at most 0.3'x0.3' and in contact SW-NE.

400/500mm - 17.5" (3/12/94): faint, small, round, 40" diameter, slight even concentration. Forms a trio with NGC 3542 3.5' WSW and MCG +06-25-014 4.7' NW. MCG +06-25-015 lies 10.5' NNW. This is a double system with components separated by just 13" (oriented SW-NE).

Notes by Steve Gottlieb