Rich Kowalski discovered a 19th magnitude comet in images taken with the Mt Lemmon Survey 1.5m reflector on 30 August 2016. There were pre-discovery images from PanSTARRS on 11 July and 3 August 3. Date10x10 magErrorKphot magComa '06-Sep-1619.730.1919.10.227-Sep-1619.090.0218.50.205-Jan-1820.650.0620.20.2