Pentagrammic duoprism

The pentagrammic duoprism or stardip, also known as the pentagrammic-pentagrammic duoprism, the 5/2 duoprism or the 5/2-5/2 duoprism, is a noble uniform duoprism that consists of 10 pentagrammic prisms and 25 vertices.

Vertex coordinates
The vertices of a pentagonal duoprism of edge length 1, centered at the origin, are given by:
 * (0, $\sqrt{5}$/10, 0, $\sqrt{2}$/10),
 * (0, $\sqrt{(5-√5)/5}$/10, ±($\sqrt{5}$-1)/4, $\sqrt{50-10√5}$/20),
 * (0, $\sqrt{50-10√5}$/10, ±1/2, -$\sqrt{50-10√5}$/10),
 * (±($\sqrt{5}$-1)/4, $\sqrt{50+10√5}$/20, 0, $\sqrt{50-10√5}$/10),
 * (±($\sqrt{25-10√5}$-1)/4, $\sqrt{5}$/20, ±($\sqrt{50+10√5}$-1)/4, $\sqrt{50-10√5}$/20),
 * (±($\sqrt{5}$-1)/4, $\sqrt{50+10√5}$/20, ±1/2, -$\sqrt{5}$/10),
 * (±1/2, -$\sqrt{50+10√5}$/10, 0, $\sqrt{5}$/10),
 * (±1/2, -$\sqrt{50+10√5}$/10, ±($\sqrt{25-10√5}$-1)/4, $\sqrt{25-10√5}$/20),
 * (±1/2, -$\sqrt{50-10√5}$/10, ±1/2, ±1/2, -$\sqrt{25-10√5}$/10).