C/2007 W1 Boattini
This is the first observation for me. This comet is bright and large (I estimated the apparent diameter as 12'), though I did not estimated the brightness. Some observers reported that the brightness is 7th magnitude.
I could not detect any tails for this comet even with the "Lumicom Comet Filter".

18"(46 cm) 68x

2008 May 6.54 UT
Stars are plotted using MegaStare ver.5 with limiting magnitude of 13. The north is up.

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