Grand stellated hecatonicosachoron

The grand stellated hecatonicosachoron, or gashi, also commonly called the grand stellated 120-cell, is one of the 10 regular Schläfli–Hess polychora. It has 120 small stellated dodecahedra as cells, joining 5 to an edge and 12 to a vertex in the form of a great dodecahedron.

It is a faceting of the great stellated hecatonicosachoron, sharing its vertices, edges, and faces.

It is one of two regular star polychora to be self-dual, the other one being the great hecatonicosachoron, which is the conjugate of this polychoron.