Kashyyyk was a temperate jungle planet orbiting around a single star located in the Mytaranor sector of the Mid Rim. The planet had a complement of three moons, one of which was orange. The planet had no axial tilt and a perfectly circular orbit, causing it to lack seasons. The center of the planet was covered with a tropical ocean belt, which contained a number of islands and large coral reefs.

Covered in wroshyr trees, Kashyyyk served as homeworld to the Wookiee species. Native fauna, such as Can-cells would influence the design of starships by the Wookiee inhabitants, while great cities, such as Kachirho would be built into the planet’s trees. The Kashyyykian wilds could be dangerous to many, thanks to dangerous animals, such as Terentateks or wyyyschokk spiders in addition to carnivorous plants, such as the jaw plant and saava.