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I was at the Oregon Star Party all last week. Since this comet was bright enough to see in binoculars, a lot of people probably photographed it. I didn't have the ephemeris, but found it visually and pointed the 'scope at it. It was moving very fast and I had to reduce the sub-exposure time to 30 seconds to avoid trailing, since I'm not set up to track a comet.

EdgeHD 8" at f/7
QSI583wsg with Astronomik LRGB filters
AP Mach1 mount
About 15 frames of L and 4 each of RGB at 30 seconds each, registered on the comet and cropped

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