2850/2849, the mozhaiskisma, is a 37-limit superparticular comma of about 0.61 cents.

Interval information
Ratio 2850/2849
Factorization 2 × 3 × 52 × 7-1 × 11-1 × 19 × 37-1
Monzo [1 1 2 -1 -1 0 0 1 0 0 0 -1
Size in cents 0.6075571¢
Name mozhaiskisma
Color name 37u19o1uryy-2
thisunoluruyoyo negative 2nd
FJS name [math]\displaystyle{ \text{A1}^{5,5,19}_{7,11,37} }[/math]
Special properties superparticular,
reduced
Tenney norm (log2 nd) 22.953
Weil norm (log2 max(n, d)) 22.9535
Wilson norm (sopfr(nd)) 89
Comma size unnoticeable
S-expression S75⋅S76
Open this interval in xen-calc

Commatic relationships

This comma is the difference between the following superparticular pairs:

It can be factored into the following superparticular intervals:

Temperaments

Tempering out this comma in the full 37-limit leads to the rank-11 temperament mozhaiskismic. Using the 2.3.5.7.11.19.37 subgroup leads to the rank-6 temperament mozhaiskic.

Mozhaiskic

Subgroup: 2.3.5.7.11.19.37

Comma list: 2850/2849

Mapping:

[⟨ 1 1 2 2 3 4 5 ],
0 1 0 0 0 0 1 ],
0 0 1 0 0 0 2 ],
0 0 0 1 0 0 -1 ],
0 0 0 0 1 0 -1 ],
0 0 0 0 0 1 1 ]]

Optimal tuning (CTE): ~2 = 1\1, ~3/2 = 701.938, ~5/4 = 386.240, ~7/4 = 968.880, ~11/8 = 551.400, ~19/16 = 297.390

Optimal ET sequence6hl, 7dh, 8d, 9, 12l, 14cl, 15l, 19eh, 19, 22l, 22h, 27e, 31h, 39dl, 41l, 50, 53, 72, 99e, 103hl, 118, 130, 152, 255, 270, 311, 400, 422l, 472, 581, 624, 684h, 783, 836, 1308, 1730l, 1889, 2041l, 2877, 3349l

Badness (Sintel): 0.177

Etymology

This comma was named by Francium in 2025. It refers to 2850 Mozhaiskij, the asteroid, which in turn was named after Alexander Mozhaysky, a Russian aviation pioneer.

See also