Dear all,

I processed this image of comet McNaught, grabbed on Jun 9
2010 while the sky was significantly bright. It *seems* to
show some hints of a shell structure, a sort of arc in the
Sun direction.

This is an uncertain detail, as there is not enough signal
and there is noise because of the bright sky to firmly
conclude, but I would like to ask other observers to check
their images. Likely, it is not real, but it would be nice
to give it a try.

http://virtualtelescope.bellatrixobservatory.org/C2009r1_9june2010ls.jpg

regards,
Gianluca Masi