ArtieI just add - logging out in the rings can be risky, because the game may spawn a boulder on top of your ship at the next session start (which may be a reason of your insurence claim). So when leaving the game it the rings, it's safer the fly further away from it. Leaving the ship unattended in the rings without logging out may also have some risk (depends on the place), as the boulders are rotating and may collide with your ship or some NPC pirates may appear.
I logged out many times in ring, and every time game would move me on top of ring, just like when you jump into instance. I never had any issues being close to some objects or even robbed by pirates, but that is mostly because I mine outside of Bubble.
Last trip had to quit game multiple times during single mining trip... as I've already have said - no issues at all.