William Herschel discovered NGC 3729 = H I-222 = h911 on 12 Apr 1789 (sweep 919) and recorded "pB, iE, gbM, nearly in the meridian, about 2' long. JH called this galaxy "Not B; L; lE; a *12 mag south-preceding very near the edge." His position is accurate.

Bindon Stoney, observing on 27 Jan 1852 with LdR's 72", commented "12' following [NGC 3718] is another neb, irr, with a bright star in south edge and having dark lanes through it."

300/350mm - 13.1" (3/24/84): fairly bright, fairly small, elongated ~N-S. A mag 11 star is on the SSW edge 57" from the center. NGC 3718 lies 12' WSW. Member of the LGG 241 or UMa NED1 group, a subgroup of the M109 Group

Notes by Steve Gottlieb