18  January  2017
   Omega Centauri  


 By    Ernesto Luppino
( www.luceslejanas.com )

Omega Centauri (NGC 5139) is the most brilliant globular cluster in the sky.

At a distance of 16000 ly, it is formed by about 10 million stars being one of the most massive among the approximately 200 globular cluster orbiting our galaxy.

This photography was taken at San Antonio de Areco, Buenos Aires, Argentina on March 2016.

Instrument: Newton GSO F4 200 with GPU coma corrector.

Mount: Sky-Watcher NEQ6, managed by EQmod

Guide: Off-Axis, with Lodestar camera

Camera: Modified Canon 600D/T3i - No IR Filter (Full Spectrum mod, using Astronomik MC Clear) and refrigerated (regulated temperature)

Camera sensor temperature: 0°C (on-sensor measured and regulated)

Filter: Astronomik Clip CLS CCD

Integration: 20 x 2 minutes subframes - ISO 800 (total integration time 40 minutes)



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