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Optics | TEC 140 |
Focal Length |
1011 mm |
Focal Ratio | f/7.2 |
Exposure Time | 4h30m
(single exp of 10 min) |
CCD | Canon
EOS 60Da (read test in English or Italian) |
Sensitivity | 800 ISO |
Location | Colle del Nivolet (AO, Italian Alps) at 2530 m height |
Date |
21 July 2012 |
Mount | Gemini
G-41 |
Tracking | Lodestar
on an 80mm f/5 refractor |
Temperature and humidity | T= 0°C, RH=80-90% |
Sky brightness at zenith (with SQM-L) | 21.3-21.4 mag/arcsec^2 (quite bright for the location due to airglow) |
Notes | North at right. |
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