2019-08-29, Spruce Knob, 4800 ft. Clear, relatively calm, humidity moderate. Transparency 10/10 to 6/10. SQM 21.6-21.7. 20" F/4. Abell 48. Aql. Round, faint, ~30 arcsec. Doubtful with 8 mm, many faint stars. Not seen with OIII. With 5.5 mm, visible and responds to OIII. Hints of very slight NNE-SSW extension and annularity. [The nebula is a gray prominent annulus on colorized DSS.]