Cirus II was a mining planet where syntonium was extracted, situated within the Outer Rim Territories. This planet was where Lex worked as a mine operator.
Tem Chesko, a pilot of a cargo hauler, once made a stop at Cirus II to transport syntonium. Subsequently, following a collision between his ship and an asteroid that resulted in the destruction of both his hyperdrive and comlink, he became marooned in space. He determined the nearest planet was 10 parsecs away, equivalent to 32.6 light-years, and his journey would take no less than sixty years.