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William Shaheen | all galleries >> Astronomy >> Astro Images by Subject > NGC2264 - The Cone Nebula 12-Feb-2010
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NGC2264 - The Cone Nebula  12-Feb-2010

NGC2264 - The Cone Nebula 12-Feb-2010

18 - 5 min. frames with the SBIG ST-8300M (monochrome) CCD camera at -20C. Baader 2" UV/IR filter. Telescope configuration: TEC-140 (980mm, f/7) with the AP 27TVPH .75x focal reducer, yielding 806mm, f/5.76 and an image scale of 1.38 arc-seconds/pixel. Mount: Losmandy G11 w/Gemini. Focused using a Bahtinov focus mask. Post processing: 18 dark frames; calibrated, aligned, combined and DDP applied in ImagesPlus 3.75 (Auto Image Set Processing). Curves in Nebulosity2.

The image was framed by slewing to NGC2264 and then using TheSky6 motion controls to jog 15 arc-minutes south.


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