5 - 600 second exposures with the SBIG ST-8300M (monochrome) CCD camera at -20C. No filter. Telescope configuration: EdgeHD 1100 (2800mm, f/10)and the Optec Lepus .62x focal reducer yielding 1960mm, f/7, unbinned. Image scale of 0.57 arc-seconds/pixel. Mount: Losmandy G11 w/Gemini. Focused using a Bahtinov focus mask. Post processing: dark frame subtraction, alignment, min/max excluded average combining in ImagesPlus 4.0 using 13 dark frames, no bias frames and no flat frames; DDP and curves in Nebulosity2. Cropped, then Adaptive Richardson-Lucy Deconvolution in ImagesPlus (7x7 10 passes). Autoguided with a Lodestar autoguider connected to a Stellarvue 50mm finderscope and a Celestron 2x Barlow and PHD autoguiding software.

20110326_NGC3190_CombExcAvg-ddpcrparl.jpg