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Who Needs Guiding.....
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Barry Megdal
I know others have had good luck with unguided imaging, but we just got the first clear and stable night in Southern California in what seems like months, so I was able to try out my latest APPM model, using Ray's experimental "declination arc" feature and hundreds of mapped points.
Seeing was a bit under 2 arcseconds, which unfortunately is good for my location. AP1600 mount with encoders, and a very long and bendy AP206 scope. Most 10 minute subs never had a single guiding correction. Ray deserves a lot of credit for APPM being able to model a difficult scope so well across the sky. Typical Maxim guiding graph looked like this (and I think most of the variation was still due to less than excellent seeing):  - Barry Dr. Barry Megdal Shb Instruments, Inc. 19215 Parthenia St. Suite A
Northridge, CA 91324
www.shbinstruments.com
(818) 773-2000 (818)773-2005 fax
bmegdal@...
Faculty (retired)
Dept. of Electrical Engineering
Caltech
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Ray Gralak
Hi Barry,
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I am glad the Declination Arc tracking feature is working so well for you. Thanks for posting! -Ray -----Original Message----- |
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