Messier 83 - NGC 5236

 Posted: Aug 16th, 2026
Technical Info
Telescope/Lens: Celestron Origin
Camera: Starvis 2 IMX678
Mount: Celestron NexStar Evolution
Guide Scope: Celestron StarSense Autoguider
Software: Siril
Exposure:
335 x 30.0003" ISO/Gain: 200
 Masterton, New Zealand
 Aug 6th, 2026
2 h 48 m
7
Resolution: 2144x1432 px
Scale: 468 KB
This is another attempt to process this image. I have used new added software in Siril to process it.  

Messier 83 – Pinwheel Galaxy

330 subs at 30 seconds each – 200 ISO, Bortle 2 – 3

Total Data: 2 Hours 40 Minutes

Taken with Celestron Origin.

West Taratahi Hall, Chester Rd, Masterton, NZ.

Thursday 6th August 2026

Stacked and processed in in Siril.

Messier 83 (M83), also called the Southern Pinwheel Galaxy, is a barred spiral galaxy located about 15 million light-years away near the borders of the constellations Hydra and Centaurus. It spans roughly 55,000 light-years across and is famous for active star formation and recent discoveries of a hidden supermassive black hole candidate.

 

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