Phoebe: Cartographic Projections (Mercator Projection)

Caption NASA:"This Map is part of a group release of Mercator and Polar Stereographic Projections of Saturn's moon Phoebe.
A "Mercator Projection" is a map that preserves directions on a body, but distorts sizes, especially near the Poles. This Global Digital Map of Phoebe was created using data taken during Cassini's close Fly-By of the small moon that occurred in June 2004.
The mosaic is projected into the Mercator Projection within the Latitude range from 57° South to 57° North; the Stereographic Projections represent Latitudes greater and lower than + or - 55°. Thus, this map meets the standard scale of 1:1.000.000, as recommended by the U.S.G.S.
The projections are conformal, the quadrangles overlap and the scale of the Poles was chosen such that the circumference of the Stereographic Projection is identical to the width of the Mercator Projection.
The nomenclature was proposed by the Cassini imaging team and has yet to be validated by the International Astronomical Union. Resolution of the digital mosaic is 233 meters (764 feet) per pixel, although the highest resolution images have resolutions of 70 meters (230 feet) per pixel. The Mean Radius of Phoebe is approx. 107 Km (such as 66,447 miles)".