Faces 16 triangles2 squares Vertices 12 | Edges 28 Symmetry group C2v | |
 | ||
Type JohnsonJ87 - J88 - J89 Vertex configuration 2(3)2(3.4)2x2(3)4(3.4) | ||
In geometry, the sphenomegacorona is one of the Johnson solids (J88). It is one of the elementary Johnson solids that do not arise from "cut and paste" manipulations of the Platonic and Archimedean solids.
A Johnson solid is one of 92 strictly convex polyhedra that have regular faces but are not uniform (that is, they are not Platonic solids, Archimedean solids, prisms or antiprisms). They were named by Norman Johnson, who first listed these polyhedra in 1966.
References
Sphenomegacorona Wikipedia(Text) CC BY-SA