William Herschel discovered NGC 3710 = H II-350 = h904 on 10 Apr 1785 (sweep 394) and noted "F, S." CH's reduction is 5' north of UGC 6504. JH logged "F; has a *7.8 nf dist 5'." and measured an accurate position.

400/500mm - 17.5" (4/9/99): faint, small, round, well-defined 30" halo is weakly concentrated but no noticeable core. Located 4.5' SW of mag 7.8 SAO 81865. A mag 15 star lies 1.3' SE and a pair of similar stars 2' NW.

Notes by Steve Gottlieb