M101 taken by ALAN ERICKSON of HIGHLANDS RANCH on 05/05/2013 with a QSI 540wsg camera through a Intes 7″ f/4 Mak-Newt.
Imaged over several nights. 20 min L, 90 min each RGB, 60 min Ha. Stacked in Maxim DL, post-processed in Photoshop.
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