during a support run to Dyson Base.
the Sphere interior.
For mapping purposes, the Sphere has been divided into twenty equal areas, roughly triangular, with an entrance portal at each corner. Each triangle covers an area of 6.28 x 1016km2 and is approximately 118,000,000km on a side. The portal at the north pole of the Sphere (relative to the star's north magnetic pole) is designated N0, and the five portals around the 30th northern parallel are designated N1 through N5. The South polar portal is designated S0 and those around the 30th southern parallel are S1 through S5.
Several large bodies of water have been spotted - indeed, approximately 50% of the surface is water, as well as wilderness areas and what appear to be large-scale industrial or urban areas. Minimal surface exploration has been conducted. Although no sapient life forms were detected by the Enterprise-D during its time inside the sphere, Dyson Base survey crews have discovered at several sapient species living on the interior surface.
Most of the Portals are surrounded by large built-up areas. These areas (dubbed "Cities" by Dyson Base personnel) are uninhabited. A few buildings have been identified as holographic data displays each devoted to a single category. Two of these have been identified by the Sphere Projector as the "Museum of Flight," depicting space vessels from many alternate realities; and the "Museum ofLife," depicting sapient life forms.
Several technological installations have been explored, including a tower with a number of habitat enclosures housing a number of different species which appear not to be native to the Sphere. One of these, a being called Gurrrps, escaped confinement and has attached himself to the crew Dyson Base. Details of the tower installation, code-named Gamma One, are classified at this time.