first:
Great game !
Skipped the tutorial and was flashed how much I could learn and how different each run worked. I also had a little bit the feeling of Darksouls, after the first trial and error runs

My Question:
Is there a calculation behind the Rebelfleet-Circle ?
Maybe it is a coincidence, but it seems that the nearest point is normally at horizontal my position, when the fleet kicks in.
Also it seemed to me, that the circle moves slower when it meets a nebula.
Are there any other interesting facts about the Rebelfleets advancement ?
Maybe they are slower if they are further away from me or something like this ?