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Whirpool
(Click to Enlarge)

Image Details
Telescope - Celestron 11" SCT @ F/6.3
Camera - Canon 450D Rebel XSI - Baader Modded
Exposure - 84mins of 120secs, iso 1600, 30 Darks
Filter(s) - Lumicon Deep Sky
Mount - Wedge Mounted CPC-1100 (unguided)
Process - Stacked in Deep Sky Stacker, Tweaked in Photoshop, Cropped.

Object Details
Designation - Messier 51, NGC5194
Distance - 23 Million Light Years
Size - 38,000 Light Years
Mass - 160 Billion Solar Masses
Apparent Magnitude - 9.0
Constellation - Canes Venatici

Under Construction
Craig Sherris, 2009