Elysium I is the closest planet to the sun of the Elysium system, United Empire of Earth (UEE). Tidally locked to its star, the gas giant completes an orbit every six Standard Earth Days (SED). Its highly-diffuse, superheated atmosphere contains clouds of silicates. Astrophysicists speculate that Elysium I formed beyond the frost line of its system, and later migrated inward.