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Pseudoglobes on the Icosidodecahedron

Gnomonic projection on an icosidodecahedron
Icosidodecahedral pseudoglobe, gnomonic projection.

The icosidodecahedron is one of two quasiregular convex polyhedra, whose faces comprise two different regular polygons alternating around each vertex (the other one is the cuboctahedron). Its name is appropriate, since those faces include 20 triangles like the icosahedron plus 12 pentagons like the dodecahedron.

This is my favorite polyhedron, reasonably rounded but not too difficult to assemble. However, due to the pentagonal faces, it is somewhat tedious to cut and score, and slightly tricky to glue. You might read the generic assembly tips before beginning, and also learn something about polyhedral maps and other kinds of map projection.


Resolution-3 Maps

Blank template for icosidodecahedron (196 KB PDF)
Gnomonic projection on an icosidodecahedron, poles centered on pentagonal faces, flat colors (1268 KB PDF)
Gnomonic projection on an icosidodecahedron, poles centered on triangular faces, flat colors (1256 KB PDF)
Gnomonic projection on an icosidodecahedron, poles on vertices, flat colors (1280 KB PDF)
Gnomonic projection on an icosidodecahedron, poles centered on pentagonal faces, original topographic/bathymetric data by NASA's The Blue Marble Project (1440 KB PDF)
Gnomonic projection on an icosidodecahedron, poles centered on pentagonal faces, "Night Lights" April 2012 original imagery by NASA's SUOMI NPP satellite (2556 KB PDF)
Gnomonic projection on an icosidodecahedron, poles centered on triangular faces, no graticule, shorelines or border lines, "Night Lights" April 2012 original imagery by NASA's SUOMI NPP satellite (1460 KB PDF)

HomeSite MapPseudoglobes You Can Build Yourself  www.progonos.com/furuti    April 19, 2016
Copyright © 2014 Carlos A. Furuti