Acronym stardip
Name pentagram-pentagram duoprism
 
Circumradius sqrt[1-1/sqrt(5)] = 0.743496
Dihedral angles
Confer
general duoprisms:
n/d,m/b-dip  
general polytopal classes:
noble polytopes  
External
links
hedrondude

Incidence matrix according to Dynkin symbol

x5/2o x5/2o

.   . .   . | 25 |  2  2 | 1  4 1 | 2 2
------------+----+-------+--------+----
x   . .   . |  2 | 25  * | 1  2 0 | 2 1
.   . x   . |  2 |  * 25 | 0  2 1 | 1 2
------------+----+-------+--------+----
x5/2o .   . |  5 |  5  0 | 5  * * | 2 0
x   . x   . |  4 |  2  2 | * 25 * | 1 1
.   . x5/2o |  5 |  0  5 | *  * 5 | 0 2
------------+----+-------+--------+----
x5/2o x   .  10 | 10  5 | 2  5 0 | 5 *
x   . x5/2o  10 |  5 10 | 0  5 2 | * 5
or
.   . .   .    | 25 |  4 |  2  4 |  4
---------------+----+----+-------+---
x   . .   .  & |  2 | 50 |  1  2 |  3
---------------+----+----+-------+---
x5/2o .   .  & |  5 |  5 | 10  * |  2
x   . x   .    |  4 |  4 |  * 25 |  2
---------------+----+----+-------+---
x5/2o x   .  &  10 | 15 |  2  5 | 10

x5/2o x5/3o

.   . .   . | 25 |  2  2 | 1  4 1 | 2 2
------------+----+-------+--------+----
x   . .   . |  2 | 25  * | 1  2 0 | 2 1
.   . x   . |  2 |  * 25 | 0  2 1 | 1 2
------------+----+-------+--------+----
x5/2o .   . |  5 |  5  0 | 5  * * | 2 0
x   . x   . |  4 |  2  2 | * 25 * | 1 1
.   . x5/3o |  5 |  0  5 | *  * 5 | 0 2
------------+----+-------+--------+----
x5/2o x   .  10 | 10  5 | 2  5 0 | 5 *
x   . x5/3o  10 |  5 10 | 0  5 2 | * 5

x5/3o x5/3o

.   . .   . | 25 |  2  2 | 1  4 1 | 2 2
------------+----+-------+--------+----
x   . .   . |  2 | 25  * | 1  2 0 | 2 1
.   . x   . |  2 |  * 25 | 0  2 1 | 1 2
------------+----+-------+--------+----
x5/3o .   . |  5 |  5  0 | 5  * * | 2 0
x   . x   . |  4 |  2  2 | * 25 * | 1 1
.   . x5/3o |  5 |  0  5 | *  * 5 | 0 2
------------+----+-------+--------+----
x5/3o x   .  10 | 10  5 | 2  5 0 | 5 *
x   . x5/3o  10 |  5 10 | 0  5 2 | * 5
or
.   . .   .    | 25 |  4 |  2  4 |  4
---------------+----+----+-------+---
x   . .   .  & |  2 | 50 |  1  2 |  3
---------------+----+----+-------+---
x5/3o .   .  & |  5 |  5 | 10  * |  2
x   . x   .    |  4 |  4 |  * 25 |  2
---------------+----+----+-------+---
x5/3o x   .  &  10 | 15 |  2  5 | 10

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