Heptagrammic-order heptagonal tiling
In geometry, the heptagrammic-order heptagonal tiling is a regular star-tiling of the hyperbolic plane. It has Schläfli symbol of. The vertex figure heptagrams are,. The heptagonal faces overlap with density 3.It has the same vertex arrangement as the regular order-7 triangular tiling,. The full set of edges coincide with the edges of a heptakis heptagonal tiling.
It is related to a Kepler-Poinsot polyhedron, the great dodecahedron,, which is polyhedron and a density-3 regular star-tiling on the sphere :
