As discussed often on the game Discord - the devs have said a few times that the release game system will not be real solar system based. One also recently confirmed that the current starmap was very crudely done and they know it's not even close to accurate when done at the time. I'm guessing that devoting resources to a more proper or final starmap is something they're going to do but later as they have plenty of other work to do.
FYI I made myself a powershell script that takes in a certain star catalog and processes it into what the game can use. It generates a *.bin file that gets used by the game to make the ingame starmap. I'll post a gist of it that anyone can use to get the script, and get the catalogue from via link, and then grind out their own bin file. the results are pretty neat - the magnitudes are a bit much right now, might work on implementing a different scale but at least they're noticeable as it currently is
Gist of script to generate KSA stars binary file
https://gist.github.com/nanonestor/8f163363571830d60df3104a8d825959
(detailed instructions in gist comments)
Final note - you can either load the bin file solo or in conjunction with the game's default bin. It's neat trying both ways.
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