A Perfect Herschel enneahedron

This polyhedron was created by [Christian Perfect] (hence the name) as a three-dimensional representation of the [Herschel graph], named after [Alexander Stewart Herschel] (hence the other name). The math behind the graph and the polyhedron is explained in a [detailed article] on [Aperiodical].

[Christian Perfect]: http://checkmyworking.com/
[Alexander Stewart Herschel]: http://en.wikipedia.org/wiki/Alexander_Stewart_Herschel
[Herschel graph]: http://en.wikipedia.org/wiki/Herschel_graph