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| Optics | Pentax 75 apo refractor |
| Focal Length |
500 mm |
| Focal Ratio | f/6.7 |
| Exposure Time | 50 min
(single exp of 10 min) |
| Camera | Canon EOS 5D with Baader filter |
| Location | Tivoli Farm (Namibia) at 1350 m height |
| Date |
28 August 2011 |
| Mount | Kenko NES |
| Tracking | Lodestar at 100 mm focal length |
| Temperature and humidity | T= 15 °C, RH=30% |
| Sky brightness at zenith (with SQM-L) | 21.7 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. Unfortunately a full hour of exposure was lost because of the camera shutting down without reason. This was the only flaw of the camera in 10 full nights of work! The exposures were stopped when the subject was only a few degrees above horizon! |
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