Prometheus is a titanoid-class world in the Proxima Centauri star system, and the homeworld of the Prometheans. It is a frigid world with a liquid solvent cycle of ammonia-suspended hydrocarbons, which pool in the ancient craters on the surface. Prometheus hosts a thriving biosphere of partially silicon-based organisms, among them a sophont species capable of interstellar spaceflight.
Flora & Fauna
Orbital CharacteristicsSemi-major axis 0.64 AU Semi-minor axis 0.60 AU Orbital period 439.46 days Rotation period 11.5 hours Natural satellites 4
Planetary CharacteristicsClass small frigid titanoid (TI) Radius 3512.3 km (0.55 x REarth) Surface area 1.55e+8 km2 Volume 1.81e+11 km3 Mass 6.34e+23 kg (0.11 x MEarth) Gravity 3.5 m/s2 Atmospheric pressure 1.4 atm Atmosphere composition
- 93% N2
- 4.5% CH4
- 2.5% other gases