Ah, yes, that clears things up a bit. I didn't have them on, and tried to turn them on, but alas. My ship was surveying a planet, and I got the far-away contact at about... erm... hard to figure it out now, but I'd say about... around 2000k. Hard to figure out, as it depends on how zoomed in I am. But I remember that it was something like one or two centimeters on my actual screen. (not like that's any help.)
Unfortunately, whenever I try to pass time it crashes ('not responding'), so not sure what to do.