Alpharabian schisma

Interval information

Ratio	618121839509504/617673396283947
Factorization	218 × 3-31 × 119
Monzo	[18 -31 0 0 9⟩
Size in cents	1.256454¢
Name	Alpharabian schisma
FJS name	[math]\displaystyle{ \text{5d2}^{11,11,11,11,11,11,11,11,11} }[/math]
Special properties	reduced
Tenney height (log2 nd)	98.2687
Weil height (log2 max(n, d))	98.2698
Wilson height (sopfr(nd))	228
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~1.21296 bits
Comma size	unnoticeable
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The Alpharabian schisma, is an 11-limit unnoticeable comma with a ratio of 618121839509504/617673396283947 and a monzo of [18 -31 0 0 9⟩. At roughly 1.26 cents in size, it is only just a little bit smaller than the better known schisma. It is the amount by which as stack of five rastmas falls short of an 8192/8019 inframinor second, as well as the amount by which a stack of three 1331/1296 semilimmic ultraprimes exceeds the Pythagorean kleisma.