2864 seconds of 8 second lights

Skywatcher 350 goto, ZWO ASI2600MC PRO (cooled to -15c), Starizona Nexus focal reducer, and ZWO Duo-Band filter.
Telescope and camera controlled by N.I.N.A.
30 2.0 second flats, 27 4.0 second darks, and 30 0.1 second biases.
Gain set to 300 for lights, darks and flats, and 1 for biases.
Binning set to 2x2.
Flats taken using a white T-Shirt stretched over the front of the telescope and exposed to the light from my storage shed.
No moon, Bortle 5 skies.

I went through the Lights in ASIFitsView and deleted the images that had been affected by the occasional gust of wind shaking the telescope, stacked and processed the images on a PC in Siril, and then transferred to a Mac and ran them through Starnet++, and Affinity Photo 2 (with RC-Astro's NoiseXterminator plugin).

IC2944 1016s 4 secs 6 May 2024

Messier 83 or M83, also known as the Southern Pinwheel Galaxy and NGC 5236, is a barred spiral galaxy approximately 15 million light-years away in the constellation borders of Hydra and Centaurus. Nicolas-Louis de Lacaille discovered M83 on 17 February 1752 at the Cape of Good Hope. Charles Messier added it to his catalogue of nebulous objects (now known as the Messier Catalogue) in March 1781.

It is one of the closest and brightest barred spiral galaxies in the sky, and is visible with binoculars. It has a diameter of about 118,000 light-years.

(Adapted from https://en.wikipedia.org/wiki/Messier_83)