The Whirlpool Galaxy

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Imaging automated by CCD Commander

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Image Data: Object Information:
  • Exposure:  LRGB - 18x300s:12x300s:12x300s:12x300s
    • Luminance binned 1x1, RGB binned 2x2
  • Telescope:  Stellarvue SV152
  • Mount:  MI-250 GoTo
  • Camera:  SBIG ST-10XME CCD, SBIG CFW-10, AstroDon E-Series TruBalance Filters
  • Location:  Casa Cielo Observatory, Santa Barbara, CA
  • Date/Time: 
    • Luminance: February 24, 2006,  03:15-05:02 PST
    • RBG: May 30/31, 2006,  22:28-01:59 PDT
  • Processing:  Taken  in MaxIm DL v4 using CCD Commander. Reduced in CCDSoft.  Aligned sub-frames with RegiStar.  Combined sub-exposures with Ray Gralak's Sigma Clip.  Gradient Removal, RGB Color Combine, and DDP in MaxIm.  2 iterations of deconvolution in CCDSharp to luminance. LRGB combine, levels, saturation boost, and selective sharpening/blurring in Photoshop.

  • Names:  M51/NGC5194, The Whirlpool Galaxy, NGC5195 (companion)
  • Other Objects: IC4277, IC4278, IC4282
  • Type:  Spiral Galaxy, plus many background galaxies
  • Constellation:  Canes Venatici
  • Distance: about 15 million light years
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