comets Comets C/2020 F3 NEOWISE with NLC, 2020-07-10 C/2009 P1 Garradd, 2011-08-03 103P Hartley, 2010-10-08 C/2007 Q3 Siding Spring, 2010-03 17P Holmes, 2007-10-29 Hale-Bopp, 1996/97