NGC 604

Telescope:Vixen VC200L, focal reducer f/6.4, Sphinx SXD
Camera:Canon EOS 40D, modified (internal filter removed), 800 ASA
Filter:Astronomik UV/IR EOS block filter
Exposure:67 x 30s
Calibration:Dark (100 images), Sky-Flat (300 images, low pass filter)
Image Processing:Shift & add with correction of subpixel movement, improved noise reduction
Date of exposure:01 September 2009
Software:ArgusPro SE



Limiting magnitude detected at 19mag, image suffers from

scattered light (human light source of a nearby factory) and moon light

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Interstellar Gas in Cygnus