Antilhue - Chile
Antilhue - Chile
|
|
|
| Designation | M 17, NGC 6618, Omega Nebula, Swan Nebula |
| Constellation | Sagittarius (Sgr) |
| Description | M 17, the Omega nebula - also
referred to as the Swan - is a beautiful emission nebula showing a figure
2 shape. It was discovered by Messier in 1764 and lies about 6000
lightyears from earth. This image was generated as a test of the
ALT5 mount's guiding performance and lacks composition and calibration
frames.
See a colour rendering of M 17 here and another H-Alpha image taken with a 14.5" Ritchey-Chrétien telescope here. |
| Exposure | Ha 6 x 15 min @ -20°C |
| Camera | SBIG ST-10XE selfguided, SBIG CFW-8 with Custom Scientific 4.5 nm Ha filter |
| Optics | Intes Micro MN106 10" Maksutov-Newton @ f/5.5 (prime focus) |
| Mount | ALT-5 ADN German Equatorial Mount with FS-2 controller |
| Software | MaxIm DL/CCD, Registar, Adobe Photoshop 6.0 |
| Location - Date - Time | San Esteban (Chile) - 04Jun2003 - 04:00 UTC |
| Conditions | Transparency 8, Seeing 5-6, Temperature 7°C |
