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DWest61506@aol.com wrote: > Thanks for the feedback on the fading. I hadn't been measuring the echo > photometrically so I guess I just noticed the effect on this image. > Listed below are my recent unfiltered CCD observations. I have been > using GSC 4822:3661 Rc=9.854 (Henden) as a comparison star. My check > star magnitude has remained constant over these observations. > > MAR 11.0639 11.82 > MAR 14.0743 11.68 > MAR 26.1020 11.71 > APR 04.0775 11.47 > APR 05.0811 11.36 > APR 14.0930 11.33 > > My observations indicate a slight brightening which isn't consistent > with your observations or is it? Perhaps; perhaps not. You are observing unfiltered, I am using standard filters. With such a red object, direct comparisons are difficult. Arne
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