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Optics | TEC 140 |
Focal Length |
1011 mm |
Focal Ratio | f/7.2 |
Exposure Time | 6 h 50 min
(single exp of 10 min), LRGB 230:50:50:90 min |
CCD | SBIG STL-11000M @-30°C |
Location | Bogli (PC, Italian Apennines) at 1350 m height |
Date |
31 October 2013 |
Mount | Gemini
G-41 |
Tracking | Lodestar
on an 80mm f/5 refractor |
Temperature and humidity | T= +5 °C, RH=100% |
Sky brightness at zenith (with SQM-L) | 20.9-21.2 mag/arcsec^2 |
Notes | North at left. |
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