CYLINDRICAL PROJECTION MAP OF HYPERION Hyperio2.gif is a shaded relief map of Hyperion, a small satellite of Saturn. It is the same map as Hyperion.gif, but has been reprojected to the Simple Cylindrical projection. As with all maps, it is the cartographer's interpretation and not all features are necessarily certain given the limited data available - this interpretation stretches the data as far as is feasible. Positions in the map are controlled by a digital shape model, to be described in a future paper. For this map the three dimensional convex hull of the shape model was projected into the Morphographic Conformal Projection (the conventional Stereographic Projection modified for non-spherical worlds). The relief drawing, initially prepared on that projection, was scanned and reprojected to this cylindrical projection. Longitude 0, defined arbitrarily but coinciding with the intermediate axis, runs down the centre of the map. This version of the file, with labels intact, is in the public domain. Philip Stooke, Department of Geography, University of Western Ontario, London, Ontario, Canada N6A 5C2 stooke@sscl.uwo.ca