Great icosahedral 120-cell

Great icosahedral 120-cell

Orthogonal projection
TypeSchläfli-Hess polytope
Cells120 {3,5/2}
Faces1200 {3}
Edges720
Vertices120
Vertex figure{5/2,5}
Schläfli symbol{3,5/2,5}
Coxeter-Dynkin diagram
Symmetry groupH4, [3,3,5]
DualGreat grand 120-cell
PropertiesRegular

In geometry, the great icosahedral 120-cell, great polyicosahedron or great faceted 600-cell is a regular star 4-polytope with Schläfli symbol {3,5/2,5}. It is one of 10 regular Schläfli-Hess polytopes.

It has the same edge arrangement as the great stellated 120-cell, and grand stellated 120-cell, and face arrangement of the grand 600-cell.

Orthographic projections by Coxeter planes
H3 A2 / B3 / D4 A3 / B2

See also

References

  • Edmund Hess, (1883) Einleitung in die Lehre von der Kugelteilung mit besonderer Berücksichtigung ihrer Anwendung auf die Theorie der Gleichflächigen und der gleicheckigen Polyeder .
  • H. S. M. Coxeter, Regular Polytopes, 3rd. ed., Dover Publications, 1973. ISBN 0-486-61480-8.
  • John H. Conway, Heidi Burgiel, Chaim Goodman-Strass, The Symmetries of Things 2008, ISBN 978-1-56881-220-5 (Chapter 26, Regular Star-polytopes, pp. 404–408)
  • Klitzing, Richard. "4D uniform polytopes (polychora) x3o5/2o5o - gofix".
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