M 101, The Pinwheel Galaxy
Submitted November 30, 2012 by Planewave Instruments
© van den Berg, Mike SBIG STL-11000M CCD-camera.
The filterset is from Baader (Germany), for the luminance channel and the UHC-S.
LUMINANCE: 20 x 20 minutes. Binningmode 1×1
RED, GREEN and BLUE for each color 6 x 10 minutes in 2×2 binning mode.
Thus LRGB = 400:60:60:60 minutes.
Data acquired on 6,14,15,19 and 20 may 2010.
The imagescale is 0,63″pixel.