M101 Wide Field
M101 Wide Field

Click on image for full size version.
Click here for a 50% size of the luminance only.
Click here for the full size luminance only.

Image Data: Object Information:
  • Exposure:  LRGB - 32x300s:14x300s:14x130s:14x220s
    • All binned 1x1
  • Telescope:  Stellarvue SV80S @ f/4.78
  • Mount:  MI-250 GoTo
  • Camera:  SBIG ST-2000XM CCD, SBIG CFW-8
  • Location:  My backyard in Goleta, CA
  • Date/Time: 
    • L: March 30, 2005, 01:35-04:42 PST
    • B: April 3, 2005, 03:10-05:02 PDT
    • RG: April 5, 2005, 02:14-04:52 PDT
  • Processing:  Taken  in MaxIm DL v4 using CCD Commander 100% UNATTENDED while I slept!  Reduced in CCDSoft.  Aligned sub-frames with RegiStar.  Combined sub-exposures with Ray Gralak's Sigma Clip.  DDP and Flatten background with MaxIm.  LLRGB Combine, curves, levels, selective sharpening/blurring in Photoshop.
  • Names:  M101, NGC5474, NGC5477, NGC5473 and many others.
  • Type:  Galaxies
  • Constellation:  Ursa Major

Back          Home