Rainy comma
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| Ratio | 2100875/2097152 |
| Factorization | 2-21 × 53 × 75 |
| Monzo | [-21 0 3 5⟩ |
| Size in cents | 3.0706739¢ |
| Name | rainy comma |
| Color name | Quinzotriyo comma |
| FJS name | [math]\text{M2}^{5,5,5,7,7,7,7,7}[/math] |
| Special properties | reduced, reduced harmonic |
| Tenney height (log2 nd) | 42.0026 |
| Weil height (log2 max(n, d)) | 42.0051 |
| Wilson height (sopfr(nd)) | 92 |
| Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~1.2858 bits |
| Comma size | unnoticeable |
| open this interval in xen-calc | |
2100875/2097152, the rainy comma, is a 7-limit unnoticeable comma of about 3.07 ¢. It is the amount by which five 8/7's fall short of three 5/4's, i.e. the amount by which 16807/16384 exceeds 128/125. It is tempered out by notable tunings such as 31edo, 94edo, 109edo, 140edo, 171edo and even 311edo. It factors into (2401/2400)(65625/65536).
Temperaments
See rainy.