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 coordinates of a pentagrammic duoprism of edge length 1, centered at the origin, are given by:
 * (±1/2, –$\sqrt{5}$, ±1/2, –$\sqrt{2}$),
 * (±1/2, –$\sqrt{(5–√5)/5}$, ±(√5–1)/4, $\sqrt{(5–2√5)/20}$),
 * (±1/2, –$\sqrt{5}$, 0, –$\sqrt{(5–2√5)/20}$),
 * (±(√5–1)/4, $\sqrt{(5–2√5)/20}$, ±1/2, –$\sqrt{(5–2√5)/20}$),
 * (±(√5–1)/4, $\sqrt{(5+√5)/40}$, ±(√5–1)/4, $\sqrt{(5–2√5)/20}$),
 * (±(√5–1)/4, $\sqrt{(5–√5)/10}$, 0, –$\sqrt{(5+√5)/40}$),
 * (0, –$\sqrt{(5–2√5)/20}$, ±1/2, –$\sqrt{(5+√5)/40}$),
 * (0, –$\sqrt{(5+√5)/40}$, ±(√5–1)/4, $\sqrt{(5+√5)/40}$),
 * (0, –$\sqrt{(5–√5)/10}$, 0, –$\sqrt{(5–√5)/10}$).