Kepler's original name for the small stellated dodecahedron.
Urchin
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Cite this as:
Weisstein, Eric W. "Urchin." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Urchin.html
Kepler's original name for the small stellated dodecahedron.
Weisstein, Eric W. "Urchin." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Urchin.html