William Herschel discovered NGC 3065 = H II-333 = h654 on 3 Apr 1785 (sweep 390) and recorded "Two [along with II-334 = NGC 3066], pF, S, bM. The most north [NGC 3065] a little larger and brighter than the southern one; otherwise much alike; not far from being in the same meridian." Caroline's reduced position is ~30 sec of RA east of UGC 5375 and UGC 5379.

This pair was also the very last object WH observed on his last sweep 1112 on 30 Sep 1802 and he also noted a third object (II-909), which turns out to be a double star. John Herschel made a single observation on 4 Nov 1831 (sweep 382), noting "vF; S; R; 10"; near a * 11-12m." The NGC position (from d'Arrest) matches UGC 5375.

400/500mm - 17.5" (4/4/92): moderately bright, fairly small, round, 1.0' diameter, bright core, stellar nucleus, fairly high surface brightness. A mag 11 star is 1.4' NW. Forms a close striking pair with slightly fainter NGC 3066 3.1' SSE.

Notes by Steve Gottlieb