1625/1624: Difference between revisions

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+ previously proposed name
Note a similarly named temp
 
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== Etymology ==
== Etymology ==
This comma was named by [[Eufalesio]] in 2026.  
This comma was named by [[Eufalesio]] in 2026. Despite the similar name, it is unrelated to the [[fantastic]] temperament.  


[[Xenllium]] proposed the name ''norcma'' in 2024 after the asteroid {{w|1625 The NORC}}.  
[[Xenllium]] proposed the name ''norcma'' in 2024 after the asteroid {{w|1625 The NORC}}.  


[[Category:Commas with unknown etymology]]
[[Category:Commas with unknown etymology]]

Latest revision as of 12:20, 17 September 2026

Interval information
Ratio 1625/1624
Factorization 2-3 × 53 × 7-1 × 13 × 29-1
Monzo [-3 0 3 -1 0 1 0 0 0 -1
Size in cents 1.065703 ¢
Name fantasia
Color name 29u3ory3M, twenuthorutriyoma
FJS name [math]\displaystyle{ \text{d}{-2}^{5,5,5,13}_{7,29} }[/math]
Special properties superparticular,
reduced
Tenney norm (log2 nd) 21.3316
Weil norm (log2 max(n, d)) 21.3324
Wilson norm (sopfr(nd)) 70
Comma size unnoticeable
Open this interval in xen-calc

1625/1624, the fantasia, is an unnoticeable 29-limit comma measuring about 1.06 cents.

In terms of other commas, it is the difference between a stack of 225/224 and 325/324, and 145/144 (the adeonisma), as well as the difference between 784/783 and 43904/43875. By nature of 43904/43875's equivalences, tempering 784/783 out alongside 2401/2400 and 4096/4095, 196/195 and 225/224, also tempers it out.

Temperaments

It is tempered out in the add-29 magic and miraculous extensions; in newt since 784/783 and 43904/43875 are both tempered out too; and in the 2.3.5.7.11.13.19.29 subgroup lowest-badness septischismic extension.

Etymology

This comma was named by Eufalesio in 2026. Despite the similar name, it is unrelated to the fantastic temperament.

Xenllium proposed the name norcma in 2024 after the asteroid 1625 The NORC.