M 101

6th-18th, 24th April 2010
Newtonian 250mm @ f/4.8, Losmandy G11 mount
SBIG ST2000 CCD camera @-15°C
LRGB with R=R+Hα: L 44x600s, Hα 9x600s, RGB 18/13/15x600s (overall 16h30m), drizzled
Rhein-Main area, Germany
North is on the left side of the image