MetaGuide: Pickering's Triangle close-up

  • Optics: Celestron C11 at f/5.7
  • Mount: Celestron CGE
  • Polar alignment: Single AllStar align with low southern star
  • Guiding software: MetaGuide ASCOM
  • Guiding details - guiding in both Ra and Dec based on video centroid with 1s period
  • Camera: Starlight Xpress SXVF-H9
  • Filter: Baader 7nm H-alpha filter
  • Guiding Camera: Lumenera SKYnyx 2-0M @ 8 fps
  • Guiding mode: Off-axis guiding with Taurus mini tracker
  • Image Details: 6x15m continuous exposures
  • 0.83" per pixel
  • Raw FWHM: approx 2.0"
  • Image Processing: ImagesPlus, flats, bias, dark used for hot pixel removal, but no dark subtract. No Photoshop
  • Date and Location: July 9, 2009. Hudson Valley, NY.

Single calibrated 15m exposure with no processing other than linear stretch and hot pixel removal.

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