NGC 6766 (also NGC 6884, HD 191916 and PK 82 +7.1) is a magnitude +10.9 planetary nebula located 12700 to to 17600 light-years away in the constellation Cygnus. The planetary nebula was discovered by American astronomer Edward Charles Pickering using a 38.1 cm (15 inch) refractor at the Harvard College Observatory on the 8th May 1883. The planetary nebula was rediscovered by Ralph Copeland in September 1884 and relisted as NGC 6884
Right Ascension 20h 10m 23.7s, Declination +46° 27' 39.8"
