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William Shaheen | all galleries >> Astronomy >> Astro Images by Subject > Into the heart of Orion - M42 with 5 second exposures 07-Feb-2011
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Into the heart of Orion - M42 with 5 second exposures  07-Feb-2011

Into the heart of Orion - M42 with 5 second exposures 07-Feb-2011

13 - 5 second exposures with the SBIG ST-8300M (monochrome) CCD camera at -20C. Baader 2" UV/IR filter. Telescope configuration: EdgeHD 9.25 (2350mm, f/10) and no focal reducer, binned 2x2 yielding an image scale of 0.95 arc-seconds/pixel. Mount: Losmandy G11 w/Gemini. Focused using a Bahtinov focus mask. Post processing: Calibration, alignment, stacking in ImagesPlus 4.0 using 13 dark frames, no bias frames and no flat frames; DDP in Nebulosity2; 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.

20110207_M42-05sec_CombExcAvg-DDP-ARL7x7x10-TPadj.jpg


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