Starbase
A Starbase is a large orbital space platform. The Ur-Quan Kzer-Za require each Fallow Slave race to maintain one of these to assist Hierarchy vessels which are in need of repairs or fuel.
As such, there is a Starbase around Earth, the Syreen homeworld at Betelgeuse I, and the Chmmr/Chenjesu homeworld at Procyon II.
A Starbase is periodically resupplied by the Ur-Quan Kzer-Za, at which time they also replace the personnel with fresh ones from the slave-shielded planet below.
See also: Earth Starbase