Antilhue - Chile

M 17 - Omega Nebula
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Image Data

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. 

There are also filtered images (H-Alpha light) taken with a 10" Maksutov-Newtonian as well as with a 14.5" Ritchey-Chrétien telescope.

Exposure RGB 20:20:39 min @ -25°C
Camera SBIG ST-10XE selfguided,  CFW-8,   Astronomik Type II LRGB Filterset
Optics Astro-Physics AP155EDFS @ f/7.2 (prime focus)
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD, Registar, Adobe Photoshop 6.0
Location - Date - Time San Esteban (Chile) - 02Aug2002 - 05:00 UTC
Conditions Transparency 8-9,  Seeing 5-6, Temperature -2°C