Comet 2006 P1 (McNaught)
Quite surprisingly, P17/Holmes underwent a dramatic outburst in fall 2007, with its magnitude increasing from 17 to below 3.
Equipment: Canon EOS 30D, Meade 8-inch f/10 at 2000mm.
With size determination and inset with applied Larson-Sakanina filter
31.10.2007