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William Shaheen | all galleries >> Astronomy - Astronomical objects, images and astronomy related projects >> Astro Images by Subject > M78 - Reflection Nebula in Orion 12-Nov-2015
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M78 - Reflection Nebula in Orion 12-Nov-2015

Distance: 1,600 ly

Telescope configuration: Celestron EdgeHD 1100 with the Celestron 0.7x focal reducer (fl=1960mm, f/7.0).
Camera: Canon EOS 7D MkII un-binned, non-IR modified. 3 - 10 minute exposures at ISO 1600. Ambient Temp +17C.
Image capture scale: 0.43 arc-sec/pixel (resampled to 1.29 arc-sec/pixel). Image capture using ImagesPlus 6.0 Camera Control.
Mount: Orion HDX110 German equatorial mount. Autoguided with an SBIG Sti autoguider, a Celestron OAG (off-axis guider) and a Starlight Xpress SXV-AOLF (Adaptive Optics Large Format) device using PHD2 autoguiding software, not dithered.
Post processing: ImagesPlus 6.5: Calibration, alignment, stacking using 0 dark frames, 3 bias frames and 0 flat frames, Min/Max Excluded Average combined, DDP, no color adjustments. Curves in Nebulosity4. Noise reduction in ImagesPlus. Resized to 33pct, cropped to final dimensions (1800x1200). No sharpening tools applied.

20151112_M78-CombExcAvg-IPddp-NEBcrv-IPnr-TPadj.tif


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