William Herschel discovered NGC 6756 = H VII-62 = h2031 on 21 Aug 1791 (sweep 1017) and recorded "a small pretty compressed cl. of stars, not very rich." JH made a total of 4 observations. On 13 Aug 1830 (sweep 278), he called it "pretty rich; S; m compressed; oval or rather fan-shaped. The stars 11...12m, 4' in extent; the nf side most compressed."

200/250mm - 8" (8/28/81): few faint stars at 100x over background haze.

400/500mm - 17.5" (7/27/92): at 280x, about two dozen mag 11.5 and fainter stars in a 6'x4' field surrounding a bright knot just east of center. A mag 13 star is at the NE edge of the knot. With concentration the central knot resolves into half a dozen very tightly packed mag 14 stars. The brightest mag 11.5 star in the cluster is 3' S of this knot. Set over unresolved background haze. Located 30' NE of open cluster NGC 6755.

Notes by Steve Gottlieb