Aranos is a planet located in the Bogon Galaxy.
Ratchet traveled to this planet twice over the course of Ratchet & Clank: Going Commando. Once voluntarily under the orders of Abercrombie Fizzwidget to retrieve a stolen experiment, and again when both he and Clank were captured by the Thugs-4-Less.
The planet Aranos is a frigid snow planet, covered with massive mountains that appear to rise above the thick clouds. Its upper atmosphere is too thin to be breathable.