The Triangulum galaxy, M33, as captured by Garry Sedun at his SDG Observatory and processed by W John McDonald
Details
20" f/4.1 telescope at the SDG observatory of Garry Sedun in Arizona.
TV Paracorr coma corrector and SBIG ST2000 XM camera.
Guidescope WO 80mm f/6.8 APO.
Mount - Paramount ME
Exposures - 8x2m for each of Clear and Green, 7x2m for Blue and Red filters with darks, flats and bias frames to match.
Processing in Images Plus, ACR and Photoshop.