Fifth noble kipentagrammic hecatonicosahedron

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Fifth noble kipentagrammic hecatonicosahedron
Rank3
TypeNoble
Elements
Faces120 asymmetric pentagrams
Edges60+120+120
Vertices120
Vertex figureAsymmetric convex pentagon
Measures (edge lengths ≈1.14102, ≈1.84634, ≈1.87528)
Edge length ratio≈1.64351
Circumradius1
Related polytopes
ArmySemi-uniform Grid, edge lengths ≈0.36483 (between rectangle and ditrigon), ≈0.11650 (between rectangle and dipentagon), ≈0.32993 (between ditrigon and dipentagon)
DualThird noble pentagonal hecatonicosahedron
Convex coreNon-Catalan disdyakis triacontahedron
Abstract & topological properties
Flag count1200
Euler characteristic–60
OrientableYes
Genus31
Properties
SymmetryH3, order 120
Flag orbits10
ConvexNo
NatureTame
History
Discovered byPlasmath
First discovered2023

The fifth noble kipentagrammic hecatonicosahedron is a noble polyhedron. Its 120 congruent faces are asymmetric pentagrams that meet at congruent order-5 vertices. It is a faceting of a semi-uniform great rhombicosidodecahedral convex hull.

The ratio between the shortest and longest edges is approximately 1:1.64351.

Gallery[edit | edit source]

Related polyhedra[edit | edit source]

It has a very similar appearance to the sixth noble kipentagrammic hecatonicosahedron.