Object: M-20
Trifid Nebula
Equipment: TMB 130mm f/7 SS
(TOA-130 flattener) with Canon 40D (Hutech modified) and SBIG
STL-11000M camera/remote guider or SBIG ST-4 with AP 80x900
guidescope on NJP mount
Exposure/Processing:
Stack of 7 5 minute 40D exposures (ISO 800); 20 minutes H-alpha
(2x20min) with STL-11000M used as luminance layer
Location/Date:
Gainesville, Florida; June 5-6, 2008 |
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