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M27 LRGB
18" F3.54 AGO
Netwonian
Astrograph
M27 LRGB
Image acquisition date: November 7, 2010.
Camera: SBIG STL6303E
Filters:  AstroDon LRGB
Camera control software:  CCDSoft
Camera temperature:  -20C
Telescope: AGO 18" F 3.54 Astrograph.

Telescope control software:  TheSky6, Focusmax
Mount:  Paramount ME
Total exposure time:
148 minutes total exposure: 30 min L, 38 min R, 34 min G, 46 Min B
Image scale 1.15 arc sec per pixel
Processing:  CCDStack2, Photoshop CS5.
Click here or above for M27 Ha
Astronomy Technology Today
review in Jan/Feb 2011 issue