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Optics | TEC 140 |
Focal Length |
1011 mm |
Focal Ratio | f/7.2 |
Exposure Time | 40m
(single exp of 10 min) |
CCD | Canon
EOS 5D with Baader filter |
Sensitivity | 800 ISO |
Location | Bogli
(PC, Italian Apennines) at 1350 m height |
Date |
29 December 2011, h 5 UT |
Mount | Gemini
G-41 |
Tracking | Lodestar
on an 80mm f/5 refractor |
Temperature and humidity | T= -3°C, RH=86% |
Sky brightness at zenith (with SQM-L) | 21.5 mag/arcsec^2 |
Notes | This is a crop of the full field. |
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