Cylon Basestar

Cylon Basestars are a classification of fictional spacecraft featured in the Battlestar Galactica television franchise. They first appeared in the three-part pilot episode of the original series, "Saga of a Star World", and have made irregular appearances throughout the entirety of the show. The concept behind the Cylon Raider was re-imagined for the 2003 Battlestar Galactica miniseries and the 2004 Battlestar Galactica regular series.

A Cylon Basestar, or baseship, is a capital warship of the Cylon Empire and serves as the Cylons' counterpart to the Battlestar command ships of the Twelve Colonies of Man. The Basestars are comprised of two saucer-shaped structures connected by a vertical bridge. The Imperious Leader of the Cylon Empire maintains his private command room within a Basestar. The ships also house squadrons of Cylon Raiders - the interceptor ships piloted by Cylon Centurions.