M51 Whirlpool Galaxy.

Image taken 2nd April 2005 with 10"f6.3
Newtonian & ST10XME resized to 50% original
Using a Paracorr incresed the focal ratio to f7.2
L=6x10min bin x 1 R=5x5min G= 4x5min B=5x5min binx2
Below is the central part of the image at 100% size.
