Crab Nebula (Supernova remnant), 100% crop

Canon 350Da (baader IR-cut filter mod)


NPZ TAL-250K (Klevtsov's system) telescope (10", 1:8.5, 1:6 with special NPZ 0.7x reducer-flattener MkII).


EQ6 PRO Syn Scan mount, guided with 75mm refractor and QHY-6 ccd.


Sub-urban area, 10km off 300k city (visual ~6.0m sky)


7.3 hours by 10min subexpositions @ iso800.


Software: Iris, FIT's Stacker Photoshop.


February 2010

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Taken on August 9, 2010