John Herschel discovered NGC 6788 = h3791 on 9 Jul 1834 and recorded "pB; pmE; S; follows a * 11m." His RA was accurate on one sweep and 1 minute too small on the other. He assumed the erroneous one was correct. DeLisle Stewart gave the correct RA as measured on an Arequipa plate.

600/800mm - 30" (10/12/15 - OzSky): at 303x; bright, large, edge-on 4:1 WSW-ENE, 2.0'x0.5', sharply concentrated with a very bright core. A bright mag 12 star is near the WSW end (0.8' WSW of center) and somewhat detracts from viewing the outer halo on this end. Located south of a line connecting mag 7.8 HD 182396 5.9' ESE and mag 7.6 HD 182160 6.7' NW. Interacting pair with IC 4856, which lies 6.5' NE.

Notes by Steve Gottlieb