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 home world at Betelgeuse I, and the Chmmr/Mmrnmhrm 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