M81 & M82 in Ursa Major

Photo Details:

• Instrument: ASA N10 Astrograph (965mm-f/3.8)
• Filters: None
• Exposure: 81 x 5 minutes @ ISO 800
• Camera: Canon 20Da with Hutech Type I Filter
• Software: Images Plus, Photoshop CS2, Registar, Noise Ninja
• Location: Mountain Ranch, California, El. 2500ft (120d 30' 02" W & 38d 14' 01" N)
• Date: March 16, 2007
• Comments: Seeing and transparency were excellent during this exposure