NGC 281

NGC 281, known as IC 11 or the Pacman Nebula, is an emission nebula and active star-forming region in the constellation Cassiopeia, containing the young open cluster IC 1590 ionized by massive O-type stars. It spans about 35 x 32 arcminutes with a distinctive "Pacman" shape from dark dust lanes.  Apparent magnitude is 7.4. Distance from Earth is 9,500 light-years.