Kudos to Patrick and Don. The July 24 spaceweather.com lists the following Jupiter impact photos.  APOD has the discovery image. Here they are in date order.  The quality of the viewing seems to be pretty aperture dependent.  On some lists, there is a suggestion that the "scar" is in fact the tail of the comet.  On other newsgroups it is described as the "ejecta field" of the impact.  Over time, there does not seem to be an significant drift off CMII 216 deg.  Tonight's spot transit on the Jovian face is at July 23 11:07pm MDT - 2009 Jul 24 05:16 ( 216°, 13°) at only -       alt 13.2 degs az 122.3 degs. The spot should still be visible an hour later at midnight, but will only be at 22 degs alt. Clear Skies - Kurt http://antwrp.gsfc.nasa.gov/apod/ap090723.html http://spaceweather.com/submissions/large_image_popup.php?image_name=Robert-... http://spaceweather.com/submissions/large_image_popup.php?image_name=Paul-Kl... http://spaceweather.com/submissions/large_image_popup.php?image_name=Joel-Wa... http://spaceweather.com/submissions/large_image_popup.php?image_name=Jim-Mel... http://spaceweather.com/submissions/large_image_popup.php?image_name=Jeremy-...