NGC6720 (M57)

February 21, 2006





 
Image details

 - Instrument
 - Camera
 - Accessories
 - Exposure time
 - Conditions
 - Procesing
 - Comments
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250mm F/5 Newton
SC3a b/w rawmod webcam
Filterwheel + LRGB filters
L:R:G:B = 12:8:8:8 min.,  manually guided
Seeing : 4/5
K3CCDTools, Photoshop
Local light pollution, altitude : 60°
© Copyright Rob Kantelberg