George Johnstone Stoney discovered NGC 7336, along with NGC 7337 and 7340, on 10 Sep 1849 and noted "4 knots following [NGC 7331]." A diagram was made 2 nights later and NGC 7336 was labeled "C".

400/500mm - 17.5" (8/12/88): very faint, very small, elongated, visible steadily. Located 1' NNW of a mag 14 star.

17.5" (8/27/87): Can just be held continuously with averted vision, elongated ~N-S. Faintest of the 4 galaxies on the east side of NGC 7331.

17.5" (9/14/85): very faint, very small, slightly elongated. Just visible with constant direct vision at 200x (10mm Clave). A mag 14 star is 1.0' SSE of center. This is the faintest of four companions of NGC 7331 and is located 2.1' NNE of NGC 7335.

600/800mm - 24" (7/21/12): at 322x the faintest of the four "companions" to NGC 7331 appeared faint, small, oval 3:2 NW-SE, 20"x14", small brighter core. Situated 2.1' NNE of NGC 7335 (brightest of the quartet). A mag 13.5 star is 1' S, between the two galaxies.

900/1200mm - 48" (10/29/16): at 375x; moderately bright, fairly small, elongated 2:1 NW-SE, very small brighter core. Faintest of the four galaxies to the east of NGC 7331.

48" (10/24/14): at 488x; fairly faint to moderately bright, fairly small, elongated 2:1 NW-SE, 0.6'x0.3', contains a small bright core. Located 2' N of NGC 7335.

Notes by Steve Gottlieb