M57 - "Ring Nebula" in Lyra

   
Telescope: Takahashi Mewlon 250 @f/9
Mount: Takahashi EM-200 Temma
Camera: SBIG ST-9XEI
Guider: STV w/200mm Takumar lens
Exposures:

L: 60 min. R: 10 min. G: 10 min. B: 15 min. (all unbinned)

Note: Images were acquired, reduced, combined (Average) with CCDSoft. Color and Luminence images were combined in Photoshop CS, where the LRGB image was adjused (Levels, Curves, Cropping). Finally, noise was reduced by applying a Gaussian Blur through a channel mask.
Location: My backyard observatory in southeastern Minnesota.
   
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