Messier 3 by Rüdiger Via Flickr: The night from March 17th to 18th was truly exceptionell. Good transparency, no dew and a seeing that left me undersampled(!) with my ATIK 9 at 0,97"/pixel. Never have experienced this before. The picture of globular cluster Messier 3 is made of RGB data with about 20x2min for each channel. No Luminance frames. Drizzle 2x2 (drop shrink 1.0) in PixInsight and downsampling to about 0.652"/pix later for the shown center crop.












