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M101 06052011 · M101, the Pinwheel galaxy in the constellation Ursa Major. M101 is 15Mly from Earth. 19x300sec fits exposures captured and combined in Nebulosity v2.4.0 software. Finishing touches done in PhotoShop.
Telescope: Orion 8" 1000mm f4.9 Newtonian reflector.
Mount: Orion Atlas EQ-G
Guide Scope: Meade 800mm f10 reduced to f5 with Atik x.5 focal length reducer (ADM rings).
Imaging Camera: Mead DSI Color 16bit camera with Peltier cooler modification.
Guide Camera: Meade DSI Pro monochrome 16bit camera.
Imaging camera in prime focus.
Filtration used: Baader UV/IR Cut filter ·