|
|
Click for hires
M8,
the Lagoon Nebula, is a very bright and large nebula in Sagittarius. It
is even visible by naked eye from a dark sky, and it's a beauty to
observe with any instrument, from the smaller binocular to the larger
dobsonian. For a wider field of view, imaged with a Pentax 75, see here.
|
|
|
| Optics | Takahashi FS152 apo refractor |
| Focal Length | 1216 mm (direct focus, no flattener) |
| Focal Ratio | f/8 |
| Exposure Time | 3 h (18x10 min) |
| CCD | Canon
EOS 5D with Baader filter |
| Sensitivity | 800 ISO |
| Location | Tivoli Farm
(Namibia) at 1350 m height |
| Date |
28 August 2011 |
| Mount | Fornax 51 |
| Tracking | SXV-H5 on a Vixen 80/640 apo refractor |
| Temperature and humidity | T= +15°C, RH=36% |
| Sky brightness at zenith (with SQM-L) | 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. |
|
|
 |