I22a_1 Vertex Coordinates Class A radius: 1.0 permutations of ( ±1, 0, 0 ) even permutations of ( ±(sqrt(5) + 1) / 4, ±(sqrt(5) - 1) / 4, ±1 / 2 ) A01: 1.00000000000000000000 0.00000000000000000000 0.00000000000000000000 A02: -1.00000000000000000000 0.00000000000000000000 0.00000000000000000000 A03: 0.00000000000000000000 1.00000000000000000000 0.00000000000000000000 A04: 0.00000000000000000000 -1.00000000000000000000 0.00000000000000000000 A05: 0.00000000000000000000 0.00000000000000000000 1.00000000000000000000 A06: 0.00000000000000000000 0.00000000000000000000 -1.00000000000000000000 A07: 0.80901699437494742410 0.30901699437494742410 0.50000000000000000000 A08: 0.80901699437494742410 -0.30901699437494742410 0.50000000000000000000 A09: 0.80901699437494742410 0.30901699437494742410 -0.50000000000000000000 A10: 0.80901699437494742410 -0.30901699437494742410 -0.50000000000000000000 A11: -0.80901699437494742410 0.30901699437494742410 0.50000000000000000000 A12: -0.80901699437494742410 -0.30901699437494742410 0.50000000000000000000 A13: -0.80901699437494742410 0.30901699437494742410 -0.50000000000000000000 A14: -0.80901699437494742410 -0.30901699437494742410 -0.50000000000000000000 A15: 0.50000000000000000000 0.80901699437494742410 0.30901699437494742410 A16: 0.50000000000000000000 0.80901699437494742410 -0.30901699437494742410 A17: -0.50000000000000000000 0.80901699437494742410 0.30901699437494742410 A18: -0.50000000000000000000 0.80901699437494742410 -0.30901699437494742410 A19: 0.50000000000000000000 -0.80901699437494742410 0.30901699437494742410 A20: 0.50000000000000000000 -0.80901699437494742410 -0.30901699437494742410 A21: -0.50000000000000000000 -0.80901699437494742410 0.30901699437494742410 A22: -0.50000000000000000000 -0.80901699437494742410 -0.30901699437494742410 A23: 0.30901699437494742410 0.50000000000000000000 0.80901699437494742410 A24: -0.30901699437494742410 0.50000000000000000000 0.80901699437494742410 A25: 0.30901699437494742410 -0.50000000000000000000 0.80901699437494742410 A26: -0.30901699437494742410 -0.50000000000000000000 0.80901699437494742410 A27: 0.30901699437494742410 0.50000000000000000000 -0.80901699437494742410 A28: -0.30901699437494742410 0.50000000000000000000 -0.80901699437494742410 A29: 0.30901699437494742410 -0.50000000000000000000 -0.80901699437494742410 A30: -0.30901699437494742410 -0.50000000000000000000 -0.80901699437494742410 Class B radius R: (sqrt(5) - 1) / 2, approx. 0.618033988750 permutations of ( ±1, 0, 0 ) * R even permutations of ( ±(sqrt(5) + 1) / 4, ±(sqrt(5) - 1) / 4, ±1 / 2 ) * R B01: 0.61803398874989484820 0.00000000000000000000 0.00000000000000000000 B02: -0.61803398874989484820 0.00000000000000000000 0.00000000000000000000 B03: 0.00000000000000000000 0.61803398874989484820 0.00000000000000000000 B04: 0.00000000000000000000 -0.61803398874989484820 0.00000000000000000000 B05: 0.00000000000000000000 0.00000000000000000000 0.61803398874989484820 B06: 0.00000000000000000000 0.00000000000000000000 -0.61803398874989484820 B07: 0.50000000000000000000 0.19098300562505257590 0.30901699437494742410 B08: 0.50000000000000000000 -0.19098300562505257590 0.30901699437494742410 B09: 0.50000000000000000000 0.19098300562505257590 -0.30901699437494742410 B10: 0.50000000000000000000 -0.19098300562505257590 -0.30901699437494742410 B11: -0.50000000000000000000 0.19098300562505257590 0.30901699437494742410 B12: -0.50000000000000000000 -0.19098300562505257590 0.30901699437494742410 B13: -0.50000000000000000000 0.19098300562505257590 -0.30901699437494742410 B14: -0.50000000000000000000 -0.19098300562505257590 -0.30901699437494742410 B15: 0.30901699437494742410 0.50000000000000000000 0.19098300562505257590 B16: 0.30901699437494742410 0.50000000000000000000 -0.19098300562505257590 B17: -0.30901699437494742410 0.50000000000000000000 0.19098300562505257590 B18: -0.30901699437494742410 0.50000000000000000000 -0.19098300562505257590 B19: 0.30901699437494742410 -0.50000000000000000000 0.19098300562505257590 B20: 0.30901699437494742410 -0.50000000000000000000 -0.19098300562505257590 B21: -0.30901699437494742410 -0.50000000000000000000 0.19098300562505257590 B22: -0.30901699437494742410 -0.50000000000000000000 -0.19098300562505257590 B23: 0.19098300562505257590 0.30901699437494742410 0.50000000000000000000 B24: -0.19098300562505257590 0.30901699437494742410 0.50000000000000000000 B25: 0.19098300562505257590 -0.30901699437494742410 0.50000000000000000000 B26: -0.19098300562505257590 -0.30901699437494742410 0.50000000000000000000 B27: 0.19098300562505257590 0.30901699437494742410 -0.50000000000000000000 B28: -0.19098300562505257590 0.30901699437494742410 -0.50000000000000000000 B29: 0.19098300562505257590 -0.30901699437494742410 -0.50000000000000000000 B30: -0.19098300562505257590 -0.30901699437494742410 -0.50000000000000000000 Face Cycles Covering Faces A01 B07 A15 B23 A24 B05 A26 B25 A19 B08 A01 B10 A20 B29 A30 B06 A28 B27 A16 B09 A02 B12 A21 B26 A25 B05 A23 B24 A17 B11 A02 B13 A18 B28 A27 B06 A29 B30 A22 B14 A03 B15 A23 B07 A08 B01 A10 B09 A27 B16 A03 B18 A28 B13 A14 B02 A12 B11 A24 B17 A04 B20 A29 B10 A09 B01 A07 B08 A25 B19 A04 B21 A26 B12 A11 B02 A13 B14 A30 B22 A05 B23 A07 B15 A16 B03 A18 B17 A11 B24 A05 B26 A12 B21 A22 B04 A20 B19 A08 B25 A06 B28 A13 B18 A17 B03 A15 B16 A09 B27 A06 B29 A10 B20 A19 B04 A21 B22 A14 B30 Central Faces A01 B09 A27 B28 A13 B02 A12 B26 A25 B08 A01 B10 A29 B30 A14 B02 A11 B24 A23 B07 A02 B11 A24 B23 A07 B01 A10 B29 A30 B14 A02 B12 A26 B25 A08 B01 A09 B27 A28 B13 A03 B17 A11 B12 A21 B04 A20 B10 A09 B16 A03 B18 A13 B14 A22 B04 A19 B08 A07 B15 A04 B19 A08 B07 A15 B03 A18 B13 A14 B22 A04 B20 A10 B09 A16 B03 A17 B11 A12 B21 A05 B25 A19 B20 A29 B06 A28 B18 A17 B24 A05 B26 A21 B22 A30 B06 A27 B16 A15 B23 A06 B27 A16 B15 A23 B05 A26 B21 A22 B30 A06 B28 A18 B17 A24 B05 A25 B19 A20 B29 Face Geometry Edge length (for unit outer radius) (sqrt(5) - 1) / 2, approx. 0.618033988750 Covering face angles 36.0 degrees 252.0 degrees Central face angles 72.0 degrees 216.0 degrees Dihedral angle arccos( 1 / sqrt(5) ), approx. 63.434948822922 degrees