Compound of five stellated truncated hexahedra

Compound of five stellated truncated hexahedra
Type Uniform compound
Index UC58
Polyhedra 5 stellated truncated hexahedra
Faces 40 triangles, 30 octagrams
Edges 180
Vertices 120
Symmetry group icosahedral (Ih)
Subgroup restricting to one constituent pyritohedral (Th)

This uniform polyhedron compound is a composition of 5 stellated truncated hexahedra, formed by star-truncating each of the cubes in the compound of 5 cubes.

Cartesian coordinates

Cartesian coordinates for the vertices of this compound are all the cyclic permutations of

(±(2−√2), ±√2, ±(2−√2))
(±φ, ±(φ−1−φ−1√2), ±(2φ−1−φ√2))
(±1, ±(φ−2+φ−1√2), ±(φ2−φ√2))
(±(1−√2), ±(−φ−2+√2), ±(φ2−√2))
(±(φ−φ√2), ±(−φ−1), ±(2φ−1−φ−1√2))

where φ = (1+√5)/2 is the golden ratio.

References

  • Skilling, John (1976), "Uniform Compounds of Uniform Polyhedra", Mathematical Proceedings of the Cambridge Philosophical Society, 79 (3): 447–457, doi:10.1017/S0305004100052440, MR 0397554.