NGC 281 is an H II region in the constellation of Cassiopeia and part of the Perseus Spiral Arm. 21x240s subs at 1×1 binning in hydrogen alpha (luminance and red channel), 16x90s subs at 2×2 binning in OIII and SII. The red channel was reduced in brightness to reduce the pink appearance of the final image. Calibrated in Maxim DL and processed in Photoshop.
Pacman Nebula