Basic Power: Two pips to activate the base power seems pretty steep. Should this have an FR2 prerequisite?
Magnitude: You do not state by how much. I’d suggest 5% to a maximum of 25%, or 10% to a maximum of 30%.
Control: Is this intended to only affect checks made while in hyperspace? Committing a Force die over downtime (which is what hyperspace travel usually is) seems like it costs nothing. I’d suggest that you change it to affect difficult terrain piloting checks. A downgrade when the pilot is trying to navigate an asteroid field WHILE being chased by TIEs is very helpful.
Strength - Accuracy: “planet with a sector” should be “within.” As for the actual ability, it seems fine. I don’t like how specific it has to be about what an additional rank does, but Force powers don’t have “XYZ” and “XYZ (Improved)” like talents do.
Control - Sense: This is good. Same for the “Improved” version.
Strength - Wayfinding: I think “any terrain” or “any terrestrial environment” works better than adding those three examples, because what about the arctic? What about at sea? What about in a swamp? The way you word it makes it sound like it’s restricted to those three options.
I don’t think it’s good for the second rank to not have the same basic effect as the first, and to only benefit from the Boost thing. I don’t have any suggestions to fix that without rewriting the talent, but I do have ideas for rewriting the talent.
I’d suggest changing the effect to committing a Force die to reduce the difficulty to navigate any terrestrial environment without getting lost once. With two ranks, now you’re reducing it twice. Maybe include some wording about how this can be used when assisting a check (as long at the character is there in person).
Alternatively, simply add Force dice to all checks made to navigate and terrestrial environment without getting lost.
Honestly, I don’t think it needs the Boost ability. I’d suggest dropping it. I don’t think power upgrades ever have two effects unless it’s a dark/light thing (but I could be wrong).
You have no “add Force dice to” upgrades. Another option for the “Wayfinding” would be to simply drop the second rank and add this in instead.
You also don’t ever require the character to make an Astrogation check as part of the Force power. I guess that’s okay, but I’d kinda rather they go together. I suppose that’s okay though.
You also don’t ever specify whether a power can be triggered multiple times.