The visual lightcurve of comet C/1995 O1 (Hale-Bopp) from 1995-1999 Jeremy Shears (18 Aug 2020 09:40 UTC)

The visual lightcurve of comet C/1995 O1 (Hale-Bopp) from 1995-1999 Jeremy Shears 18 Aug 2020 09:40 UTC