M 13

M 13

© van den Berg, Mike; Ippel, MathijnCDK17 (luminance): 33 x 30 minutes.
CDK12,5 (RGB): 8 x 30min.; 8 x 30min.; 8 x 30min.
We used a SBIG STL-11000M CCD & AO-L. Guiderate 7 Hz.

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