I believe I saw a satellite crossing the face of the nearly full moon. Is this common? possible? ridiculous? Details: Observing nearly full moon on evening of July 17, 1997. Lat: N39.692 Lon: W75.567 (30 miles west of Philadelphia) Using 12.5" f4.84 Newtonian with 32mm Plossel eyepiece for 48x and 1*fov Time 10:32:50 EDT (WWV checked watch) Observed: A black resolvable round circle, estimated at 10" diameter crossed from left to right in the scope taking about 1 second to traverse the approximately 20' of illuminated disk, approximately 5' below lunar equator. I saw nothing with the naked eye when I looked away from the eyepiece, but, of course, my right eye (oberving eye) was not dark adapted (moon is bright in a 12") at all, and left eye was able to read lunar map in the moonlight--able to see mag 2. Additional: As it is an inverting scope, actual pass was from right to left, i.e. west to east, 5' North of the lunar equator. Seeing was about 3" quality, Epsilon-Lyra double-double was just resolvable. So resolution of circular shape in under 1 second of observing, while seemingly clear at the time, may be a bit questionable. I have seen birds fly across the moon face several times before--they have always been clearly identifiable as birds. I suppose this maybe could have been a very high flying bird, but it didn't seem like it. I have had eyespots float through If this was a satellite, do folks do this lunar silhouette satellite observing often? Which satellite was it? Thanks. Bill Bill Kahn (212) 372-9156 voice Mitchell Madison Group (212) 372-9001 fax 520 Madison Avenue kahnb@mmgnet.com New York, NY 10022