This is a massive disk of durasteel plating, four hundred meters in circumference and one hundred meters tall. The top of this vessel is a shallow dome cluttered with countless tiny view ports, lit from within. The underside is less rounded, more conical in shape, and in the center a circular hole opens upward into a shielded docking bay, flanked with several tractor beam emitters. Equally spaced around the underside, enormous spherical repulsor-generators just peek their rounded undersides through the heavy armor plating. Around the circumference of the vessel the upper plating and the lower plating meet in a deep trench. Thrusting out from the trench every twenty degrees stands a turbolaser battery. The symmetry of the disc is interrupted only by a rectangular portion of the vessel raise