Comet C/2009 P1 Garradd

  • Location: Capitol Reef National Park, Fruita, Utah
  • Date: February 26, 2012
  • Time: 1:30 – 5:30 A.M MST
  • Camera: Canon Self Modified 400D, nothing over sensor
  • Optics: Canon EF 300mm f/4.0L Non-IS Camera Lens at f/4.0
  • Focus Method: Bahtinov Mask
  • Mount: Celestron CG-5GT
  • Guiding: PHD Polar Aligned & Guiding
  • Autoguider: Starlight Xpress CoStar CMOS
  • Guidescope: 50 mm Finderscope
  • Tracking: Guiding done on comet nucleus
  • Exposure: 20 X 10 min. exposures (3.33 hours)
  • ISO: ISO 800
  • Temperature: 27 deg. F
  • Wind: Wind 8-10 mph
  • Calibration: 22 darks, flats
  • Stacking: MaxDSLR, MaxIm DL
  • Processing: Adobe Photoshop CS3