286/285

Interval information

Ratio	286/285
Factorization	2 × 3-1 × 5-1 × 11 × 13 × 19-1
Monzo	[1 -1 -1 0 1 1 0 -1⟩
Size in cents	6.063873¢
Name	chthonisma
Color name	19u3o1og1, nuthologu 1sn, Nuthologu comma
FJS name	[math]\displaystyle{ \text{d1}^{11,13}_{5,19} }[/math]
Special properties	superparticular, reduced
Tenney height (log2 nd)	16.3147
Weil height (log2 max(n, d))	16.3197
Wilson height (sopfr(nd))	53
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~1.5364 bits
Comma size	small
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286/285, the chthonisma is a 19-limit superparticular comma of about 6.1 ¢. It is the difference between 19/13 and 22/15, and also between 15/13 and 22/19.

Etymology

The name chthonisma was named by Xenllium in 2023. It was so named because 15/13 and 22/19 are chthonic interseptimal intervals.

See also

• Small comma
• List of superparticular intervals