M51 - Whirlpool Galaxy
A famous face-on spiral galaxy in Canes Venatici. A stack of 99 2x2 binned 30s exposures taken with a QHY22 camera on a 300mm F/4 Newtonian telescope. CLS filter, MPCC coma corrector and autoguided. Captured and stacked in Nebulosity 3, processed in StarTools and tweaked in GraphicConverter 9.