Messier 51

Telescope:Vixen VC200L, focal reducer f/6.4, Sphinx SXD
Camera:Canon EOS 40D, 800 ASA
Exposure:190 x 30s
Calibration:Dark (200 images), Flat (100 images, low pass filter)
Image Processing:Shift & add with correction of subpixel movement, improved noise reduction
Date of exposure:10 May 2009
Software:ArgusPro SE

Remark:

 

Limiting magnitude detected at 20mag,

image is slightly deteriorated due to image rotation 

 
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