As far as I know, currently, it is not possible to have multiple stars because the game only tolerates one large light source.
So I would like to ask the developers and the community whether they are working on solving this, and how far the development is.
Only two things must be changed in the system editor to make multiple stars and galaxies possible.
Allow multiple star-sized light sources and
Allow for multiple static objects to exist, or to set/program movement vectors manually.
Also, how far is axial tilt?
another thing i've found is using the atmosphere fog shader and bumping up its height scale parameter to like 50 so that it wraps around the whole star rather than like a half or 2/3rd of it and increasing the "intensity from space" parameter to a suitable value which will make them look like they are glowing without actually giving off any light in the "dark side", idk if somebody has done it before me but it's a handy workaround for sure, the only real downside is that it means you can't put designs on the stars, making them only appear as a colored sphere, but that generally shouldn't matter too much
@sacr3dbac0n0