I do remember the line from the BSG Miniseries where they are talking about caclulating their first jump. Something like, “If we are off by even a few percentage points, we could end up in the middle of the sun!” and I was thinkijng, “Like, you’d be off in your calculations by a whole percentage point?” I mean, I know there’s no networked computers allowed on the galactica, but a calculator should be able to handle it.

Edit: Though, now in retrospect, I imagine a first jump calculation would involve estimating mass, which is going to be imprecise. Probably after your first jump you can infer your mass from your location.