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Optics | Pentax 75 |
Focal Lenght | 500mm |
Focal Ratio | f/6.7 |
Exposure Time | 3h (single
exp of 10 min) |
CCD | Canon EOS 5D
with baader filter |
Location | Colle dell'Agnello (CN,
Italian Alps) at 2700 m height |
Date |
19 Aug 2009 |
Mount | Gemini G-41 |
Tracking | ST4 on a 80mm
f/5 refractor |
Temperature and humidity | T=+8°C,
RH=80% |
Sky brightness at zenith (with SQM-L) | 21.5 mag/arcsec^2 |
Notes | - |
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