Perhaps a bit outside the topic (or maybe not), but wouldn’t it be interesting if the various factions had their own secret star maps? The map in the basic rules could be what all factions know, but some factions might have mapped out a lot more, probably in different directions. I think it would be a cool premise if for example the UPP had a much larger star map, perhaps partly based on knowledge from the Engineers or some other unkonwn beings. The very existence of such a map would for sure be political.
I get that this thread is mostly about mapping stuff according to canon. But you can also use maps as handouts. Actually, a map doesn’t even have to be true to be interesting from a game point of view.