After Earth Wiki

Heliopolis is the sixth and final Anchorage to be established by the Humans of Nova Prime, it is named after the Sun City in ancient Greek Culture. The world was the last to be settled on and is the largest Anchorage of them all, having a diameter of 14,342 km.

Map of Heliopolis


Similar to Earth, the world has a range of environments, unlike Earth, the planet's environments were harsh, much of the inland parts of the planet is covered in dry, arid deserts and mountains