Carosi X was the tenth planet in the Carosus system of the Outer Rim Territories. Carosi X was a gas giant in orbit around the star Carosi. The planet had ten moons. When the Carosus system's sun expanded to become a red giant at around 200 BBY, it consumed the five innermost worlds in the system. Because of this, Carosi X became the fifth planet in the Carosus system.