Stacking of your images is the easy part, with many quality, free apps available.
But post-processing is where astrophotographers make their hard-won data really count.
StarTools lets you push your signal harder, with unrivalled fidelity, and without deep-faking detail.
The HDR (High Dynamic Range) module optimises local dynamic range, recovering small to medium detail from your image.
It is up to you how you wish to approach image processing.
The Color module is very powerful - offering capabilities surpassing most other software - yet it is simple to use.
The two aspects - colour and luminance - of your image are neatly separated thanks to StarTools' signal evolution Tracking engine.
You can convert everything you see to a format you find convenient. Give it a try!