M81

Galaxy in the Constellation Ursa Major

Image Details:

•  
  • Instrument: TMB 152 Triplet APO Refractor @ f/7.9 (1200mm) focal length
  • Mount: AP-1200GTO
  • Image Scale:  1.6 arc-seconds/pixel after processing
  • Filters & Exposure Times:  
    • L:   18 x 5 minutes binned 1x1
    • R:   18 x 5 minutes binned 2x2
      G:   9 x 5 minutes binned 2x2
      B:   9 x 5 minutes binned 2x2
  • Camera: SBIG ST-2000XM, CF8WA Color Filter Wheel, AO-8 Adaptive Optics
  • Software: Maxim DL/CCD, Adobe Photoshop, RC Astro Gradient X-Terminator, Neat Image Pro
  • Location: Little Rock, AR., El. 650ft
  • Date: June 22nd, 2008