Object: Leo Trio Camera: Meade DSI Pro II
Date: 3/24/09 Telescope: Meade 80mm ED refractor
Total Exposure: LRGB: 88':36':36':56' Subexposures: L - 2'; RGB - 4'
Mount: Orion Sirius EQ-G Guiding: PHD - Orion StarShoot Auto Guider
Location: West Boylston, MA Guide Scope: Orion Short Tube 80
Processing:
  • AutoStar Image Processing:
    1. Dark Frame Calibration
    2. Exposure Alignment - Single star
    3. Data Combined - Average mode
  • Photoshop:
    1. Luminance channel imported using Fits Liberator plug-in
    2. Curves and Levels adjustments
    3. Gradient reduced via GradientXterminator
    4. Noise reduced via Noel Carbonni's "Space Noise Reduction" action
    5. A little HighPassSharpening on the galaxies
    6. More curves and levels adjustments to taste
    7. Artficial diffraction spike added via another Noel Carbonni action
    8. RGB data processed normally
    9. LRGB image generated via Stephen Cannistra's Luminance Corrected Method
    10. Further refinements to bring out details in Photoshop CS3