Thanks, Ted! I just checked the clock in my wife's camera (which I used for the exposures) and was embarassed to find it running six minutes fast. I usually set the camera clock before taking pictures but neglected to last night. Lesson learned. So the time of the exposure was from 0341 - 0346 UT, assuming the time saved with the image (Canon Digital Rebel XT) is the start time of the exposure. Change anything? If nothing can be identified, then I will have to revisit the possibility that this is some sort of optical reflection in the camera optics, but it sure doesn't look like it to me. I have taken many such pictures with this camera and lens combination and technique and have never seen a phenomenon like this before. Thanks again, Dave On Aug 2, 2010, at 11:42 PM, Ted Molczan wrote: > David Oesper wrote: > >> A colleague of mine thinks it might have been a rocket plume >> from the Iridium 95 satellite #27375U. His software shows it >> at EXACTLY the position of the "nebula" in my photo at that >> time. Possible? > > I find it passing about 1 min later than your observation, and touching the eastern edge of the > "nebula". The object was in eclipse, so it needed to have made a fairly large burn to illuminate the > plume, yet I see no change in the elements. Using IDSat and Findsat, I have found no match against > any of the objects in known orbits. > > Ted Molczan _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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