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Optics | TEC 140 |
Focal Length |
1011 mm |
Focal Ratio | f/7.2 |
Exposure Time | 4 h 40 min
(single exp of 10 min), LRGB 130:40:40:70 min |
CCD | SBIG STL-11000M |
Location | Pian dell'Armà (PV, Italian Apennines) at 1350 m height |
Date |
13 April 2013 |
Mount | Gemini
G-41 |
Tracking | Lodestar
on an 80mm f/5 refractor |
Temperature and humidity | T= +4 °C, RH=60-80% |
Sky brightness at zenith (with SQM-L) | 21.3 mag/arcsec^2 |
Notes | North at
top. |
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