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Taken through a non-EdgeHD Celestron 9.25 while autoguide testing.
3 exposures - 1@6min; 2@8 min with the SBIG STF8300M camera. Astro-Physics CCDT67 focal reducer.
Guided using the QHY5L-II monochrome camera and a Stellarvue 50mm finderscope, on the Paramount MX mount.
20140725_M 33_CombExcAvg-Neb3.jpg
All images copyright William J. Shaheen, unless otherwise noted. Do not use or distribute without prior consent.