William Herschel discovered NGC 7392 = H II-702 = h2186 on 11 Sep 1787 (sweep 754) and recorded "pF, pL, E from np to sf but nearer the parallel, mbM, about 1 1/2' long." JH made 3 observations and on 3 Sep 1831 logged "not vF; lE; gbM; 60" l, 40" br."

200/250mm - 8" (9/25/81): faint, small, slightly elongated.

400/500mm - 17.5" (10/24/92): moderately bright, fairly small, elongated 5:3 WNW-ESE, 1.4'x0.8', moderately brighter core. Several stars are near including a mag 10.5 star 4.5' N. A pair of mag 13/14 stars 1.6' N and 2.2' N are collinear with NGC 7392 and finally a mag 12 star lies 2.6' ESE.

Notes by Steve Gottlieb