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Click for hires
In
the Southern Sky a large number of great galaxies are present. Here is
an example, with the Fornax Galaxy, NGC 1097, a barred spiral galaxy.
Unfortunately only a single hour of exposure has been collected, so the
noise in the result was evident. A hard work of noise reduction has been
done, but the result cannot be perfect.
Note about processing: this image has been processed by Edoardo Radice with PixInsight and then refined by Lorenzo Comolli with Photoshop. Thanks for the collaboration!
Zoom at 100% resolution.
Note about processing: this image has been processed by Edoardo Radice with PixInsight and then refined by Lorenzo Comolli with Photoshop. Thanks for the collaboration!
Zoom at 100% resolution.
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| Optics | Takahashi FS152 apo refractor |
| Focal Length | 1216 mm (direct focus, no flattener) |
| Focal Ratio | f/8 |
| Exposure Time | 1 h (6x10 min) |
| CCD | Canon
EOS 5D with Baader filter |
| Sensitivity | 800 ISO |
| Location | Tivoli Farm
(Namibia) at 1350 m height |
| Date |
31 August 2011 |
| Mount | Fornax 51 |
| Tracking | SXV-H5 on a Vixen 80/640 apo refractor |
| Temperature and humidity | T= +5°C, RH=58% |
| Sky brightness at zenith (with SQM-L) | 22.1 mag/arcsec^2 |
| Notes | This
image is a collaborative effort of the Namibia 2011 expedition.
Processing: Edoardo Radice and Lorenzo Comolli. Images by: Lorenzo Comolli, Luigi Fontana,
Giosuè Ghioldi, Emmanuele Sordini. |
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