Object: Omega Centauri (Cen, NGC 5139, or Caldwell 80) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677. Located at 17,090 light-years, it is the largest-known globular cluster in the Milky Way at a diameter of roughly 150 light-years. It is estimated to contain approximately 10 million stars, and a total mass equivalent to 4 million solar masses, making it the most massive-known globular cluster in the Milky Way.
Omega Centauri is very different from most other galactic globular clusters to the extent that it is thought to have originated as the core remnant of a disrupted dwarf galaxy.
Taken: April 5, May 10-12, June 29, July 8, July 29, 2021 at El Sauce Observatory, Río Hurtado, Coquimbo Region, Chile
Telescope: Planewave CDK24 610mm aperture f/6.5
Mount: Mathis MI-1000/1250 with absolute encoders
Camera: FLI PL 9000
Filters used: 50mm Astrodon LRGB 2GEN
Exposures: 8×600 seconds, 10×300 seconds luminosity, 7×600 seconds, 12×300 seconds red, 6×600 seconds, 10×300 seconds green and 8×600 seconds, 11×300 seconds blue for a total exposure time of 8.42 hours; calibrated with 10 dark frames, 10 flat frames and 10 bias frames.
Processed with PixInsight, Photoshop CC 2022
Image Processed By Dale A. Chamberlain; Original raw data and calibrations files from Telescope Live