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Single 8 minute exposure at ISO800, Canon EOS 6D. Processed with curves in Nebulosity3, one pass unsharp mask and cropped but not downsampled. (Full moon was on Jan 3rd.) Image scale: 0.49 arc-sec/pixel.
20150206_M51_Light_480SecISO800_000017-NEBcrv-TPadj.jpg
All images copyright William J. Shaheen, unless otherwise noted. Do not use or distribute without prior consent.