Antilhue - Chile

M 17 in Ha RC
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Image Data

Designation M17,  NGC 6618,  Omega Nebula,  Swan Nebula
Object type Emission nebula
Coordinates 18h21min,  - 16°11'  (Sagittarius ) 
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.  Click on the above image to double the resolution (50% of original)

Here is a link to another H-Alpha image taken with a 10" Maksutov-Newtonian and a colour rendering with a 6" refractor

Exposure Ha 120 min @ -25°C  -  all exposures 15 min
Camera SBIG STL-11000, selfguided  /   Astronomik 13nm Ha filter
Optics RCOS 14.5" Ritchey-Chrétien @ f/9
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD, Sigma Pre Beta 11, Adobe Photoshop CS
Location - Date - Time San Esteban (Chile) - 13Aug2004 - 03:00 UTC
Conditions Transparency 6,  Seeing 4, Temperature + 9°C