|Planet Name||Class||Diametre (km)||Position||Moons||Gravity||Day (hrs.)||Atmosphere||Climate||Industry|
|Rura Penthe||P||15,600||II||0||1.2G||28.0||Terrestrial||Arctic||Dilithium Mining/
Rura Penthe is a cold, barren, inhospitable planet. The Klingon Empire uses it as a prison planet called the "Aliens' Graveyard" for its use for keeping alien prisoners in solitude, often until their death from privation and overwork.|
Few people have ever escaped Rura Penthe, among them being Jonathan Archer, James T. Kirk and Leonard H. McCoy.