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      Omega Centauri (NGC 5139), Globular Cluster
      Wallpaper author:
      Andrew Macica

      05 Feb 2026

      Omega Centauri (NGC 5139), Globular Cluster

      Omega Centauri (NGC 5139) is a Globular Cluster in the constellation Centaurus. It is 17 KLY distant. In the northern hemisphere, in the San Francisco Bay Area, NGC 5139 at it's highest altitude is only 5 degrees above the horizon. It is essentially a southern hemisphere object. It is the largest globular cluster in the Milky Way. It is composed of 10 million stars. It's age is estimated to be over 11 billion years. (NASA Science, <a href="http://www.nasa.gov" rel="noreferrer nofollow">www.nasa.gov</a>, TheSky Pro)


      Image processed by Andrew Macica, original data from Telescope Live.


      Imaging Details:


      Observatory: Rio Hurtado Valley, Chile

      Telescope: Planewave CDK24

      Aperture: 610 mm (24 inches), f/6.5

      Focal Length: 3962 mm

      Camera: FLI PL 9000 CCD

      Filters: LRGB

      Total Exposure: 8 hours 25 min.


      Image Processing: PixInsight 1.8.9-3 Ripley (x64);

      BlurXTerminator, NoiseXTerminator (RC Astro);

      Adobe Photoshop 12.5.1;

      Adobe Lightroom Classic 14.1.1


      Instruction on PixInsight from Adam Block Studios.

      Dataset from which the image was processed

      NGC 5139

      9 credit

      Open
      Telescope Live
      CHI-1-CCD

      Omega Centauri (NGC 5139), Globular Cluster