This is almost 8 hours worth of exposure time on M33 captured in bortle 5 skies. All capture and control was done using kstars/ekos.Equipment used:
* Astro-Tech AT90EDT
* Stock Nikon D3400
* Celestron/Losmandy G-11 with OnStep
* Guided with Meade LPI-GM Advanced on a 50mm guide scope
Processed using siril, starnet++, and gimp. Here was my workflow
* Preprocess and stack in siril
* Photometric color correction in siril
* Minor asinh stretching in siril
* Generate starless image via starnet++
* Generate star layer by subtracting the starless image from the original image in gimp
* Deconvolution and more stretching of starless image in siril
* Merge the starless and star layers in gimp