M33 is a spiral galaxy approximately 3 million light years (ly) from Earth in the constellation Triangulum.
Telescope: Orion 10" f/3.9 Astrograph
Mount: CGEM; PHD guided with StarShoot camera and 50mm finder
Camera: Canon 550D unmodded; IDAS filter
Exposures:
59 min (59x60sec @ISO 6400) shot at Coyle 11-18-11
24 min (12x120sec @ISO 800) shot at Marina dock in MD 11-25-11
16 min (8x120sec @ISO 1600) shot at Marina dock in MD 11-25-11
Total time 99 min
Website: www.johnsastropics.com