The Pacman Nebula (NGC 281) in the constellation Cassiopeia, HST image
The Pacman Nebula (NGC 281) is a bright emission nebula and H-alpha region located in the constellation Cassiopeia, 9500 light years away from Earth. Amateur picture taken with professional CMOS camera and refractor telescope (800mm, f/6.95), image consists of: Ha: 72 x 300s, OIII: 55 x 300s, SII: 83 x 300s. Total exposure time: 10,5h, HSTpalette image.
Image dimensions: 4485 x 3348 pixels