M81 & M82 in Ursa Major

Photo Details:

• Instrument: Orion Mak-Newtonian (1000mm-f/5.25)
• Filters: Astrodon
• Exposure: M81-LRGB: 20:23:23:24 x 10 mins, M82-HaLRGB: 55:24:20:19:24 x 10 mins
• Camera: SBIG STF-8300
• Software: Images Plus, Registar, Photoshop CS5, Noise Ninja, Maxim DL
• Location: Mountain Ranch, California, El. 2500ft (120d 30' 18" W & 38d 13' 53" N)
• Date: February 16 & 17, March 8-10, 2013 and January 4-6 & 19-22 & 25, 2014
• Comments: Most of the subs for M81 were taken on the 2 days around the 1st quarter moon