Bilunabirotunda C0 = 0.809016994374947424102293417183 = (1 + sqrt(5)) / 4 C1 = 1.30901699437494742410229341718 = (3 + sqrt(5)) / 4 V0 = ( 0.5, C0, 0.5) V1 = ( 0.5, C0, -0.5) V2 = ( 0.5, -C0, 0.5) V3 = ( 0.5, -C0, -0.5) V4 = (-0.5, C0, 0.5) V5 = (-0.5, C0, -0.5) V6 = (-0.5, -C0, 0.5) V7 = (-0.5, -C0, -0.5) V8 = ( C1, 0.5, 0.0) V9 = ( C1, -0.5, 0.0) V10 = ( -C1, 0.5, 0.0) V11 = ( -C1, -0.5, 0.0) V12 = ( 0.0, 0.0, C0) V13 = ( 0.0, 0.0, -C0) Faces: { 12, 2, 9, 8, 0 } { 12, 4, 10, 11, 6 } { 13, 1, 8, 9, 3 } { 13, 7, 11, 10, 5 } { 0, 1, 5, 4 } { 3, 2, 6, 7 } { 8, 1, 0 } { 9, 2, 3 } { 10, 4, 5 } { 11, 7, 6 } { 12, 0, 4 } { 12, 6, 2 } { 13, 3, 7 } { 13, 5, 1 }