Antilhue - Chile

NGC 5139 - Omega Centauri
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Image Data

Designation NGC 5139,  Omega Centauri,  Bennett 61
Constellation Centaurus (Cen)
Description Recorded by Ptolemy as a star and later designated by Bayer as Omega Centauri, this wonderful cluster was really discovered by Edmund Halley in 1677. Photographs show outlying stars to 65 arcmins diameter but the main region is about half as much, still the size of a full moon.  Distance: about 16.000 lightyears.

Colour high resolution version here .

Exposure L 20 s @ -10C
Camera SBIG ST-10E unguided, 1x1, no filter
Optics Astro-Physics AP155EDFS @ f/7.2 (prime focus)
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD
Location - Date - Time San Esteban (Chile) - 20Dec2001 - 09:15 UTC
Conditions Transparency 6,  Seeing 6, Temperature +20C