Abell 51, Sgr (PK 17-10.1). 2022-06-29, Spruce Knob (summit, 4800 ft). Clear, calm, dry. Transp. 8/10, seeing 1", SQM 21.58 mag/arcsec^2. Telescope aperture 508 mm, F/4. Ocular 5.5 mm. OIII filter. The nebula appears pretty definite, round. Two faint stars are on the N and S edges. A triangle of bright stars W. Not visible w/o filter. [This is a distinct nebula on Panstarrs g.]
