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Optics | Pentax 75 apo refractor |
Focal Length |
500 mm |
Focal Ratio | f/6.7 |
Exposure Time | 1 h 30 min
(single exp of 10 min) |
Camera | Canon EOS 5D with Baader filter |
Location | Tivoli Farm (Namibia) at 1350 m height |
Date |
30 August 2011 |
Mount | Kenko NES |
Tracking | Lodestar at 100 mm focal length |
Temperature and humidity | T= 11 °C, RH=30% |
Sky brightness at zenith (with SQM-L) | 21.8 to 21.9 mag/arcsec^2 |
Notes | This image is a collaborative effort of the Namibia 2011 expedition.
Processing: Lorenzo Comolli. Images by: Lorenzo Comolli, Luigi Fontana,
Giosuè Ghioldi, Emmanuele Sordini. Very bad seeing, nearly impossible to get focus. Short exposure because of late start due to trip to the dunes for sunset. |
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