Or it might break the system, overlapping stations on top of each other. It could also make relationships between facilities not work properly.
I am too much of a coward to add 4 more stations to test this any further. Lots of work just to find my system is broken.
Nah, your system is too valuable to risk. There is one system I spotted not far from mine that's one sun - one asteroid field. I'll check if anyone claimed it.