Example image of eyePlorer eyePlorer map for 'Quadrilateralized Spherical Cube': Cartography Celestial sphere Data binning Sphere Cosmic Background Explorer Curvilinear perspective Cube Cartesian Unit sphere Vertex North Pole Prime Meridian Bin (computational geometry) Histogram Power of two Minute of arc Steradian Rasterisation Bit Greenwich Binary tree Numbering scheme Partition Singularity Sternberg Astronomical Institute HEALPix Qlsc Quad