The Pacman Nebula, NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way’s Perseus Spiral Arm. It is  20×30 arcmin in size. 

Images by Kevin Langford

NGC281 Pacman KL

Images by Neil Webster

PACMAN-Nebula-Redo

Image by Neil Webster – No Details Provided