As I understand it, they have to secure the whole star system first, and they have about two weeks until July 4 to do it. So as of this piece they're well within 5 AU's.

Also, an AU (astronomical unit) is the distance from the Earth to the Sun. I rather doubt there'd be any life-supporting planets 5 AU's out unless the sun was damn hot...and we know it's a yellow sun, like Sol itself, so it's not that much hotter.

"They say one should not speak unkindly of the dead, so I say, 'nice try'." --Lezard