Acronym so Name stella octangula,compound of 2 tet Coxeter symbol {4,3}[2{3,3}]{3,4} ` © ©` Circumradius sqrt(3/8) = 0.612372 Inradius 1/sqrt(24) = 0.204124 Vertex figure [33] General of army cube Colonel of regiment (is itself locally convex) Dihedral angles (at margins) between {3} and {3}:   arccos(1/3) = 70.528779° Confer related compounds: sis   general polytopal classes: regular Externallinks

The common intersection of the stella octangula is a (scaled) oct. Moreover stella octangula is selfdual.

Incidence matrix according to Dynkin symbol

```xo3oo3ox

o.3o.3o.  & | 8 |  3 | 3 || 1
------------+---+----+---++--
x. .. ..  & | 2 | 12 | 2 || 1
------------+---+----+---++--
x.3o. ..  & | 3 |  3 | 8 || 1
------------+---+----+---++--
x.3o.3o.  & ♦ 4 |  6 | 4 || 2
```

```o3o4β

both( . . . ) | 8 |  3 | 3 || 1
--------------+---+----+---++--
both( . o4s ) | 2 | 12 | 2 || 1
--------------+---+----+---++--
sefa( o3o4β ) | 3 |  3 | 8 || 1
--------------+---+----+---++--
both( o3o4s ) ♦ 4 |  6 | 4 || 2

starting figure: o3o4x
```

```β2o4β

both( . . . ) | 8 | 2 1 | 3 || 1
--------------+---+-----+---++--
both( s 2 s ) | 2 | 8 * | 2 || 1
both( . o4s ) | 2 | * 4 | 2 || 1
--------------+---+-----+---++--
sefa( β2o4β ) | 3 | 2 1 | 8 || 1
--------------+---+-----+---++--
both( s2o4s ) ♦ 4 | 4 2 | 4 || 2

starting figure: x o4x
```

```β2β2β

both( . . . ) | 8 | 1 1 1 | 3 || 1
--------------+---+-------+---++--
both( s2s . ) | 2 | 4 * * | 2 || 1
both( s 2 s ) | 2 | * 4 * | 2 || 1
both( . s2s ) | 2 | * * 4 | 2 || 1
--------------+---+-------+---++--
sefa( β2β2β ) | 3 | 1 1 1 | 8 || 1
--------------+---+-------+---++--
both( s2s2s ) ♦ 4 | 2 2 2 | 4 || 2

starting figure: x x x
```