William Herschel discovered NGC 3607 = H II-50 = h845, along with NGC 3605 and 3608, on 14 Mar 1784 (sweep 170). See NGC 3605 for description.

300/350mm - 13.1" (2/16/85): bright, slightly elongated, bright core, stellar nucleus. Brightest in a group with NGC 3608 5.7' N, NGC 3605 3.0' SW and NGC 3599 21' WNW.

600/800mm - 24" (5/27/17): very bright, large, oval 4:3 NW-SE, sharply concentrated with an intensely bright core that increases to an extremely bright nucleus. A nice group of 5 stars is roughly 4' SE with one a wide pair [17"]. In a small group of bright galaxies (part of the larger group USGC U376) with NGC 3605 2.9' SW and NGC 3608 5.8' N.

Notes by Steve Gottlieb