I participated in a NASA training seminar yesterday on the Deep Impact mission and was surprised to hear that after impact the expect the comet (9P/Tempel 1) will brighten 3 magnitudes, from 9 to 6. Personally I find it a little hard to imagine how lobbing a couple of hundred kilos of copper into a comet measuring some 4 x 4 x 9 km is going to throw up enough dust to brighten it that much. But then I never thought the Jovian impacts of SL/9 would have been so easily visible from Earth either. Unfortunately at the time of impact (very early on the morning of 4 July) the comet it will not be terribly well placed for viewing from Utah but it will be visible. This just might be something a few of us might want to put together a private star party in a site with dark skies and a low, flat SW horizon. BTW, the event will be very well placed for viewing from the Hawaiian Islands. Hmmm, now who here do we know that lives in Hawaii...? Patrick