Swirlprismatic diacositetracontitetracosioctacontachoron

The swirlprismatic diacositetracontitetracosioctacontachoron, or spiddit, is a nonconvex uniform polychoron that consists of 240 pentagonal prisms and 480 pentagrammic prisms. Twenty pentagonal prisms and forty pentagrammic prisms join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the small stellated hecatonicosachoron.