You'd have to first figure out how to fly there physically, check it out, then send nearly instant messages back to earth since if the planet were x number of light years away, it would take a long time for messages to reach us, so, a lot of things can change during that time. So even if we cannot travel the speed of light, or faster, communication would need to.
Also, we are assuming that we could just fly somewhere and claim it. It may be the Klingon High Council has already claimed some regions of space.
Or it could b like Dune. Creatures already there mining for a time travel mineral with great dangerous animals that do not like humans. Any number of things could b living there which r quite dangerous to humans... Not to even think about how dangerous we would appear to them considering the fact that we r dangerous to our ourselves and our own earth.