Abell 78

2020-07-15, Beaver Meadow Observatory, SQM 21.19. 20-inch Newtonian (F/5), 13-mm ocular, OIII filter. Abell 78, Cyg. An annulus with a well-defined outer edge, slightly washed out to the SE and slightly fainter on the opposite side. Bright central star. Two faint stars close to the NE and NW, two brighter stars farther to the SW and ESE. PK 81-14.1. [The nebula is prominent, irregularly annular on DSS B.]