Acronym ... Name 2sitphi (?) Circumradius sqrt[3+sqrt(5)] = 2.288246 General of army hi Colonel of regiment sidtaxhi Confer non-Grünbaumian master: sitphi

Looks like a compound of 2 small tripesic hecatonicosachora (sitphi), and indeed vertices coincide by 6, all other elements by 2.

As abstract polytope sitphi is isomorphic to gitphi, thereby replacing the decagons by decagrams and pentagrams by pentagons, resp. replacing tigid by quit sissid.

Incidence matrix according to Dynkin symbol

```o5/2x5x5/2o

.   . .   . | 3600 |    2    2 |   1    4   1 |   2   2
------------+------+-----------+--------------+--------
.   x .   . |    2 | 3600    * |   1    2   0 |   2   1
.   . x   . |    2 |    * 3600 |   0    2   1 |   1   2
------------+------+-----------+--------------+--------
o5/2x .   . |    5 |    5    0 | 720    *   * |   2   0
.   x5x   . |   10 |    5    5 |   * 1440   * |   1   1
.   . x5/2o |    5 |    0    5 |   *    * 720 |   0   2
------------+------+-----------+--------------+--------
o5/2x5x   . ♦   60 |   60   30 |  12   12   0 | 120   *
.   x5x5/2o ♦   60 |   30   60 |   0   12  12 |   * 120
```
```or
.   . .   .    | 3600 |    4 |    2    4 |   4
---------------+------+------+-----------+----
.   x .   .  & |    2 | 7200 |    1    2 |   3
---------------+------+------+-----------+----
o5/2x .   .  & |    5 |    5 | 1440    * |   2
.   x5x   .    |   10 |   10 |    * 1440 |   2
---------------+------+------+-----------+----
o5/2x5x   .  & ♦   60 |   90 |   12   12 | 240
```

```o5/2x5x5/3o

.   . .   . | 3600 |    2    2 |   1    4   1 |   2   2
------------+------+-----------+--------------+--------
.   x .   . |    2 | 3600    * |   1    2   0 |   2   1
.   . x   . |    2 |    * 3600 |   0    2   1 |   1   2
------------+------+-----------+--------------+--------
o5/2x .   . |    5 |    5    0 | 720    *   * |   2   0
.   x5x   . |   10 |    5    5 |   * 1440   * |   1   1
.   . x5/3o |    5 |    0    5 |   *    * 720 |   0   2
------------+------+-----------+--------------+--------
o5/2x5x   . ♦   60 |   60   30 |  12   12   0 | 120   *
.   x5x5/3o ♦   60 |   30   60 |   0   12  12 |   * 120
```

```o5/3x5x5/3o

.   . .   . | 3600 |    2    2 |   1    4   1 |   2   2
------------+------+-----------+--------------+--------
.   x .   . |    2 | 3600    * |   1    2   0 |   2   1
.   . x   . |    2 |    * 3600 |   0    2   1 |   1   2
------------+------+-----------+--------------+--------
o5/3x .   . |    5 |    5    0 | 720    *   * |   2   0
.   x5x   . |   10 |    5    5 |   * 1440   * |   1   1
.   . x5/3o |    5 |    0    5 |   *    * 720 |   0   2
------------+------+-----------+--------------+--------
o5/3x5x   . ♦   60 |   60   30 |  12   12   0 | 120   *
.   x5x5/3o ♦   60 |   30   60 |   0   12  12 |   * 120
```
```or
.   . .   .    | 3600 |    4 |    2    4 |   4
---------------+------+------+-----------+----
.   x .   .  & |    2 | 7200 |    1    2 |   3
---------------+------+------+-----------+----
o5/3x .   .  & |    5 |    5 | 1440    * |   2
.   x5x   .    |   10 |   10 |    * 1440 |   2
---------------+------+------+-----------+----
o5/3x5x   .  & ♦   60 |   90 |   12   12 | 240
```