William Herschel discovered NGC 2691 = H II-658 on 20 Mar 1787 (sweep 721) and noted "pF, vS, mbM." His position (Caroline Herschel's reduction) is about 2' NW of UGC 4664 and the only nearby candidate. MCG does not label the entry +07-18-064 as NGC 2691.

400/500mm - 17.5" (2/9/02): fairly faint, fairly small, elongated ~3:2 N-S, 0.7'x0.4', weak concentration to a very small brighter core. Bracketed by a mag 13 star 0.9' N and a mag 12 star 2.5' SW. NGC 2704 lies 25' ESE.

Notes by Steve Gottlieb