cos

Of course, far enough and you'll need to both be in a space suit and packing oxygen, which is gonna use up a lot of your weight. Would have to do some back-of-the-envelopes to see if a picnic trip to the moon was feasible, but I'm guessing anything farther would be out unless you had pretty extreme acceleration and the magic negated the inertial forces on your body and supplies.

This is where teleportation (with the same load-carrying ability) would be handy, even if it was just line-of-sight. I can *see* Mars, so... (Of course, you'd better either have flight as well, or be able to velocity-match your destination reference point automatically, or there's gonna be trouble.)