Stellated tetracontoctachoron

The stellated tetracontoctachoron or stoc is a regular compound polychoron. It is a compound of two icositetrachora in dual orientations. it has 48 octahedra as cells, with 6 cells joining at each vertex.

Its quotient prismatic equivalent is the icositetrachoric antiprism, which is five-dimensional.

Vertex coordinates
The vertices of a stellated tetracontoctachoron of edge length 1, centered at the origin, are given by all permutations of:
 * $$\left(±\frac{\sqrt2}{2},\,±\frac{\sqrt2}{2},\,0,\,0\right).$$
 * $$\left(±\frac12,\,±\frac12,\,±\frac12,\,±\frac12\right),$$
 * $$\left(±1,\,0,\,0,\,0\right).$$