Doesn't really make a lot of sense to me that this is the Pa'anuri "walking their shots", though. They must already know where Petey is or else shooting at him is not a threat, so why are they having to take out random annie plants to try and get closer to their target? Also, that makes it a massive, massive coincidence that the Maxim 39 was destroyed while the Pa'anuri were trying to find someone several thousand light-years away.

If I was trying to shoot Petey just from the annie plants I'd be looking for all those annie plants supporting the floating cities of Paranassus Dom--they're arranged in a much more regular pattern and are far larger than a typical planet's annies.