Distance: 36 ± 5.0 Mly, in the constellation Leo.
Telescope configuration: Celestron EdgeHD 1400 with the Celestron 0.7x focal reducer (fl=2737mm, f/7.7).
Camera: Canon EOS 6D unbinned, IR modified, ambient temperature ~60F. 8 (of 10) - 10 minute exposures at ISO 0800. Image scale: 0.49 arc-sec/pixel (resized to 0.99 arc-sec/pixel). Image capture using ImagesPlus 5.75 Camera Control.
Mount: Software Bisque Paramount MX with PEC and ProTrack enabled. Autoguided with an SBIG Sti autoguider, a Celestron OAG (off-axis guider) and a Starlight Xpress AOLF (Adaptive Optics Large Format) device using PHD2 autoguiding software, not dithered.
Post processing: ImagesPlus 6.0: Calibration, alignment, stacking using 0 dark frames, 7 bias frames and 7 flat frames, DDP, sharpening - Adaptive Richardson-Lucey deconvolution (7x7 by 7 passes), noise reduction and smoothing. Curves in Nebulosity3. Cropped and 2x unsharp mask in ThumbsPlus7. Multiresolution Smoothing/Sharpening (MRS) in ImagesPlus. Resized to 50pct in TP7.
20150409_M66-M65_CombSigMed-IPddparlnr-NEBcrv-TPadj2-IPmrs-TPadj3
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