Bobby Jay said:
Luckily for her and the rebellion Number 3 on the list is Tarkin who decides to park the Death Star in orbit of Yavin and wait for the rebel base to come into range.
See above post and the Death Star was orbiting Yavin to get to the moon not just parked there. Also, we have no idea how the DS even moves. It may have to rely on the gravitational pull of planets and moons or whatever. Why does everyone seem to think that giant thing was fast?