Internet Encyclopedia of Science
SOLIDS & SURFACES
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stellation


great icosahedron
Great icosahedron.
Model and image courtesy Robert Webb
1. The process of constructing a new polyhedron by extending the face planes of a given polyhedron past their edges. 2. The new polyhedron thus obtained. Starting with the icosahedron, for example, there are 59 possible stellations, including the great icosahedron, which is one of the Kepler-Poinsot polyhedra.


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