Bad weather, no obs possible, let's revert to theory. We are capturing a LEO satellite on a CCD. There are two setups: 1) Mount tracking stars in sidereal mode 2) Mount still The trace on CCD should have a different slope, because in case 1 what we obtain is the resultant of Earth velocity vector and Sat velocity vector. Not being able to capture with two simultaneous setups on the same satellite I stop tracking in the middle of the FOV, thinking of obtaining a broken trace. See this image to understand what I mean. http://img864.imageshack.us/i/siderealtrackingvsfixedr.jpg/ As far as now I could not prove the above. Either my reasoning is wrong or the effect is so small as to be undetectable. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.satobs.org/mailman/private/seesat-l/attachments/20110313/9665f0d2/attachment.html _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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