M51, Pinwheel Galaxy, project continuing. More blue collected to reduce noise in that channel, and each channel reprocessed to reduce sky glow gradient. QSI583wsg on AT8RC, autoguided with Lodestar, all on G11.
|Luminance||90 minutes in 5-minute subs, 1x1.|
|Red||65 minutes in 5-minute subs, 2x2.|
|Green||90 minutes in 3-minute subs, 2x2.|
|Blue||81 minutes in 3-minute subs, 2x2.|
Calibrated with darks and flats in CCDStack, aligned, and median-combined. Channels individually processed in Photoshop with GradientXterminator, LRGB combined, fine-tuned.