Theshaca is a standard hydrogen-helium has giant. In the past, it was often used as a drive discharge point for pirates raiding human settlements from the Terminus Systems. In 2178 the Alliance set up a network of covert sensing devices on Thesaca's moons.
Recordings of pirate FTL exit vectors over the course of six months led the Alliance Navy to eight major pirate anchorages. Since the "Theshaca Raids," no ships from the Terminus have been reported in the Hong system.