M63, The Sunflower Galaxy in Canes Venatici

 

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Exposure Data: 4/11,16,17/2006.  CRGB: 29x10m, 12x10m, 12x10m, 12x10m.  RGB 2x2. -25C, 0.55 arc-sec./pixel.
 
Processing: Acquired via CCDAutoPilot 3 and CCDSoft, reduced, aligned and combined in CCDStack, 50 RL iterations in AIP4WIN, LRGB combine, curves, levels, LAB and other processing in Photoshop.

 
Optical System: 14.5 Ritchey-Chretien @ F/9 w/FFC, IMG6303E/CFW-7 CCD camera, AstroDon filters, Paramount ME, dithered 3 pixels, off-axis guided.
 
Comments: 10.8 hours total exposure.  Deconvolved to 1.4 arc-sec.