No-fives subgroup temperaments: Difference between revisions

@@ Line 603: / Line 603: @@
 [[Comma list]]: 537824/531441, 896/891, 144/143, 784/783
+== Hectosaros leap week ==
+Defined as the 320 & 1803 temperament, in the 2.3.7.13.17.19 on the basis of the fact that 1803 tropical years make up almost exactly 100 saros cycles.
+Subgroup: 2.3.7
+Comma list: [-50 -746 439]
+Mapping: 1 313 532, 0 -439 -746
+Optimal tuning (CTE): ~17 343 143 = 851.248
+=== 2.3.7.13 subgroup ===
+Subgroup: 2.3.7.13
+Comma list: -42  -2 -5 16, 10 -46 29 -5
+Mapping: 1 313 532 208, 0 -439 -746 -288
+Optimal tuning (CTE): ~1235079060111/755603996672 = 851.248
+=== 2.3.7.13.17 subgroup ===
+Subgroup: 2.3.7.13.17
+Comma list: 39337984/39328497, 0 -14  7  4 -3, -18 -24 14 -1  5.
+Mapping: 1 313 532 208 58, 0 -439 -746 -288 -76
+Optimal tuning (CTE): ~6144/3757 = 851.248
+=== 2.3.7.13.17.19 subgroup ===
+Subgroup: 2.3.7.13.17
+Comma list: 10081799/10077696, 39337984/39328497, 10754912/10744731, and 480024727/480020256
+Mapping: 1 313 532 208 58 432, 0 -439 -746 -288 -76 -603
+Optimal tuning (CTE): ~6144/3757 = 851.248
 [[Category:Temperament collections]]
 [[Category:Subgroup temperaments]]
 [[Category:Rank 2]]