Acronym | sishia |
Name |
small stellated hecatonicosachoron alterprism, narrower sishi atop sishi |
Circumradius | sqrt[(7+sqrt(5))/8] = 1.074481 |
Face vector | 240, 3840, 8640, 3840, 362 |
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External links |
Top and bottom is an alike oriented sishi each. But its height is a bit smaller than for the siship. The staps run between directly aligned underneath pentagrams, resp. hossdaps run between directly aligned underneath sissids.
The vertex figure of sishia is a variant of the reduced version of xv5/2ov5oo&#x (omitting a double-cover from its Grünbaumian bottom base).
This polyteron could be obtained itself as an accordingly reduced form of β2β5o5/2o5o, then omitting a double-cover from its Grünbaumian 3sishi bases, leaving a simple sishi instead.
narrower sishi || sishi → height = sqrt[(sqrt(5)-1)/2] = 0.786151
240 | 12 20 | 90 30 | 30 72 12 | 12 1 13
----+-----------+-----------+--------------+----------
2 | 1440 * | 10 0 | 5 10 0 | 5 0 2
2 | * 2400 | 3 3 | 3 6 3 | 3 1 3
----+-----------+-----------+--------------+----------
3 | 2 1 | 7200 * | 1 2 0 | 2 0 1
5 | 0 5 | * 1440 | 1 2 2 | 2 1 2 {5/2}
----+-----------+-----------+--------------+----------
10 | 10 10 | 10 2 | 720 * * | 2 0 0 stap
6 | 5 5 | 5 1 | * 2880 * | 1 0 1 stappy
12 | 0 30 | 0 12 | * * 240 | 0 1 1 sissid
----+-----------+-----------+--------------+----------
24 | 60 60 | 120 24 | 12 24 0 | 120 * * hossdap
120 | 0 1200 | 0 720 | 0 0 120 | * 2 * sishi
13 | 12 30 | 30 12 | 0 12 1 | * * 240 sissidpy
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