 |
The Details |
|
Object |
M 17 The Omega or Swan Nebula in Sagittarius |
Optics |
12.5" RCOS Ritchey-Chretien at f/6.9 |
Platform |
Astro-Physics 1200 GTO |
Camera |
SBIG ST-10XME |
Filters |
Custom Scientific 3nm Hydrogen-Alpha |
Date |
07 June 2004 |
Location |
Mount Wilson Observatory, Mount Wilson CA |
Exposure |
Ha 6 x 1800 sec 1x1 bin |
Software |
Maxim DL/CCD, Registar, CCDSharp, Photoshop |
| Orientation | Field of view: 23' 24" x 15' 09" centered on RA 18h21m17s DEC -16°11'14". North angle 208.70°; east 90° CCW from north |
| Notes | Unlike many other emission nebulae, this beautiful object is mainly illuminated by stars hidden within the nebula itself. M17 along with its close neighbor M16 reside together in the Sagittarius arm of the Milky Way Galaxy. M17 is estimated to have a total span of about 40 light years across and lie between 5000 and 6000 light years away from earth. |
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No reproduction of these images are permitted without prior approval of the author.