I watched the film once. Do we actually see the drained star die? Could the star be drained but not destroyed? Did someone actually state the star was destroyed in the movie or did we all imply that was the case?
Looks like the canon response (Hidalgo) is the planet moves though. Very small planet? Massive hyperdrive that overcomes the gravity well imposed by the planet itself? New discovery that if the hyperdrive is protected by powerful shields and sunk into the core of the planet it can avoid the negation of the planet's gravity well?