With the incredibly clear (and rare!) weather here in MI, I was able to get 80 minutes worth of color (RGB & Ha) to add to my 2 hour luminance of M51.
More detail (and full res image) here:
http://www.ricksastro.com/DSOs/m51rgb_st2k.shtml
Rick Krejci

More detail (and full res image) here:
http://www.ricksastro.com/DSOs/m51rgb_st2k.shtml
Rick Krejci
