William Herschel discovered NGC 5777 = H III-806 on 17 Apr 1789 (sweep 924) and logged "vF, vS, lE." His position matches UGC 9568.

400/500mm - 17.5" (6/21/93): fairly faint, edge-on 5:1 NW-SE, 2.0'x0.4', small bright core, thin extensions. A mag 14.5 star is close to the NW tip, 1.2' from center. Located 20' S of mag 5.5 HD 131507.

600/800mm - 24" (7/6/13): at 200x appeared fairly bright, large, edge-on ~8:1 NW-SE, ~2.4'x0.3'. Contains a small bright core that is elongated and increases to a brighter sub-stellar nucleus. A mag 14.5 star is adjacent to the NW tip of the galaxy on the following edge. Forms a pair with UGC 9570, a dwarf galaxy 2.8' SE of center. The ghostly companion appeared as a very low surface brightness ill-defined glow, ~25" diameter.

900/1200mm - 48" (5/1/19): at 375x; bright, large, very thin edge-on NW-SE, 3.0'x0.3'. Sharply concentrated with a very bright, small but slightly elongated core. The galaxy extends just beyond a mag 14.5 star near the NW end. UGC 9570, a low surface brightness companion 2.7' SE of center, appeared fairly faint, moderately large, roundish, diffuse glow, ~40" diameter, very weak concentration.

Mrk 830, a distant Sy1 galaxy (light-travel time = 2.56 billion years) located 20' SSE, was easily visible and displayed a faint stellar nucleus surrounded by a very small halo, ~6" diameter.

Notes by Steve Gottlieb