Starscape comma
The starscape comma is a 7-limit unnoticeable comma, with a ratio of 645700815/645657712, a monzo of [-4 17 1 -9⟩, and a size of 0.11557 cents. It is tempered out in temperaments such as domain and supermajor.
Temperament
Tempering this comma out gives starscape temperament.
Starscape (2019 & 171 & 3125)
Subgroup: 2.3.5.7
Commas: 645700815/645657712
Mapping: [⟨1 0 4 0], ⟨0 1 1 2], ⟨0 0 -9 -1]]
POTE generators: ~3 = 1901.9509, ~9/7 = 435.0709
Vals: 171, 342, 1848, 2019, 2783, 2954, 3125, 3296, 4973, 5144
Badness: 0.000545
Temperament finder: http://x31eq.com/cgi-bin/uv.cgi?uvs=%5B-4%2C17%2C1%2C-9%3E&page=2&limit=7
Domain
Subgroup: 2.3.5.7
Comma list: 250047/250000, 645700815/645657712
Mapping: [⟨3 -3 -9 -8], ⟨0 17 35 36]]
Wedgie: ⟨⟨51 105 108 48 28 -44]]
POTE generator: ~10/9 = 182.467
Optimal GPV sequence: 171, 1164, 1335, 1506, 1677, 1848, 2019, 2190, 11943, 13962, 15981, 18000, 20019, 22038
Badness: 0.013979
Supermajor
Subgroup: 2.3.5.7
Comma list: 4375/4374, 52734375/52706752
Mapping: [⟨1 15 19 30], ⟨0 -37 -46 -75]]
Wedgie: ⟨⟨37 46 75 -13 15 45]]
POTE generator: ~9/7 = 435.082
Optimal GPV sequence: 11, 80, 171, 764, 1106, 1277, 3660, 4937, 6214
Badness: 0.010836