552/551

Interval information

Ratio	552/551
Subgroup monzo	2.3.19.23.29 [3 1 -1 1 -1⟩
Size in cents	3.139138¢
Name	sigelindisma
Color name	29u23o19u1, twenutwethonu unison
FJS name	[math]\displaystyle{ \text{d}{-2}^{23}_{19,29} }[/math]
Special properties	superparticular, reduced
Tenney height (log2 nd)	18.2144
Weil height (log2 max(n, d))	18.217
Wilson height (sopfr(nd))	80
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~1.29142 bits
Comma size	unnoticeable
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552/551, the sigelindisma is a 29-limit superparticular comma. It was first described and documented by Douglas Blumeyer in 2021.

Etymology

The name sigelindisma was named by Xenllium in 2025. It refers to 552 Sigelinde, the asteroid. Which was in turn named after a fictional character. Before that, Douglas Blumeyer and Budjarn Lambeth proposed to name this comma marmosarubra in 2023, referring to the red mouse opossum, Marmosa rubra, species no. 552551 in the Integrated Taxonomic Information System (ITIS).

See also

• Unnoticeable comma
• List of superparticular intervals