Octahedral prism

Octahedral prism

Schlegel diagram
Type Prismatic uniform polychoron
Uniform index 51
Schläfli symbol {3,4}x{}
t1{3,3}x{}
s{2,3}x{}
Coxeter-Dynkin

Cells 2 (3.3.3.3)
8 (3.4.4)
Faces 16 {3}, 12 {4}
Edges 30
Vertices 12
Vertex figure Square pyramid
System groups [3,4,2], order 96
[3,3,2], order 48
[(3,2)+,2], order 12
Properties convex

In geometry, a octahedral prism is a convex uniform polychoron (four dimensional polytope). This polychoron has 10 polyhedral cells: 2 octahedra connected by 8 triangular prisms.

Contents

Related polytopes

It is the first in an infinite series of uniform antiprismatic hyperprisms.

It is one of 18 uniform polyhedral prisms created by using uniform prisms to connect pairs of parallel Platonic solids and Archimedean solids.

Alternative names

Structure

The octahedral prism consists of two octahedra connected to each other via 8 triangular prisms. The triangular prisms are joined to each other via their square faces.

Projections

The octahedron-first orthographic projection of the octahedral prism into 3D space has an octahedral envelope. The two octahedral cells project onto the entire volume of this envelope, while the 8 triangular prismic cells project onto its 8 triangular faces.

The triangular-prism-first orthographic projection of the octahedral prism into 3D space has a hexagonal prismic envelope. The two octahedral cells project onto the two hexagonal faces. One triangular prismic cell projects onto a triangular prism at the center of the envelope, surrounded by the images of 3 other triangular prismic cells to cover the entire volume of the envelope. The remaining four triangular prismic cells are projected onto the entire volume of the envelope as well, in the same arrangement, except with opposite orientation.

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