Here is the dual of the solid above, also.
These images were created with Stella 4d, which you can find at http://www.software3d.com/Stella.php.
A Polyhedron Made of Kites and Regular Nonagons, Along with Its Dual
RobertLovesPi.net
Polyhedra, tessellations, and more.
RobertLovesPi.net 
How was this nonagon shape discovered? Do you have any more info on its dimensions? I’m curious if it lines up with the points of the “6 dodecahedron compound”
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I don’t remember. This post is over 7 years old. I don’t even call them nonagons anymore — they are, more properly, enneagons.
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