It was taken using an Equinox 80 refractor, an Atik 428EX camera and Baader narrow band filters
This is NGC 281 also known as The Pacman Nebula after the video game character. It is an H II region (a cloud of ionised gas in which stars have recently formed) in the constellation of Cassiopeia. It is 9500 light years from Earth and contains a multiple star with one mag 8 primary and 4 fainter companions. This version combines SII, Ha and OIII wavelengths (the so-called Hubble palette).