Sihiros

Sihiros is the homeworld of the Psions, and the planet where Psion Falangist State's capital city of Imperias is located. Sihiros is the second planet from it's sun and is approximately 62% water.

it's air is 68% nitrogen, 28% oxygen and .5% carbon dioxide with the rest 1% being made up by various random gases such as helium and argon. Sihiros has a mass of 6 × 1024 kilograms (for reference earth is 5.97219 × 1024 kilograms). Sihiros has ten natural satellites