Messier 42: The Great Orion nebula

• Name: Messier 42 / Orion nebula
• Type: nebula - star forming region
• Constellation: Orion
• Telescope: William Optics 66mm APO refractor (388mm focal length)
• Mount: Celestron GT CGEM
• Camera: Canon 450 (unmodified)
• Guiding: 5-inch Celestron SCT / Orion StarShoot Autoguiding camera / PHD Guiding software
• Exposures: 9 180s exposures
• Location: Chambers Lawn, Davidson College, Davidson, NC
• Date: April 2011