NGC281; Pacman Nebula in Cassiopeia: OGS 14.5" RCT at f/7.9; STL-11000M: Luminance exposures in Hydrogen alpha light (Ha): 2 hours (15min x 8) binned 1x1; Color exposures: R:G:B; 30:30:30 min (2x2) Final LRGB image was composited as follows: Luminance data: 80%Ha/20%Red channel (HaR) at 30% opacity, Color data: (HaR):GB.