Ringnebel M57 mit H-alpha bei 400mm f/9 mit STL-11000M

Vollbild


Object:      Ring Nebula

Date:        18.08.09

Location:    Oberes Schlierental 1450m . M.

SQM:         21.36m/s2 at 05:15UTC

Telescope:   Astrooptik Keller Cassegrain 400mm f/9

Mount:       ALT-7

Autoguiding: Second chip in SBIG STL-11000M
           
Camera:      SBIG STL-11000M

Filter:      H-alpha

Dark Frame:  -25C

Exposure:    6x600s + 5x300s Luminance, 6x1800s H-alpha, 
             every 3x600s RGB, total 265minutes
 


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Letzte Änderungen: 4. August 2009, Webmaster