From 10ac3bf8aa5550d2ff250fda183d0aa2a20921d6 Mon Sep 17 00:00:00 2001 From: Aidan Cottuli Date: Tue, 16 Sep 2025 00:29:06 +1000 Subject: [PATCH] Fix definition of constant angstrom_star Change the base unit of angstrom_star from 'dimensionless' to 'meter'. NOTE: this bug did not exist in Pint v0.24.4 and appears to have been introduced by PR https://github.com/hgrecco/pint/pull/2049. Reference - (p. 50) https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=958143 --- pint/constants_en.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pint/constants_en.txt b/pint/constants_en.txt index 295ce2c39..9d820b80a 100644 --- a/pint/constants_en.txt +++ b/pint/constants_en.txt @@ -63,7 +63,7 @@ proton_mass = 1.67262192595e-27 kg = m_p neutron_mass = 1.67492750056e-27 kg = m_n # (85) x_unit_Cu = 1.00207697e-13 m = Xu_Cu # (28) x_unit_Mo = 1.00209952e-13 m = Xu_Mo # (53) -angstrom_star = 1.00001495e-10 = Å_star # (90) +angstrom_star = 1.00001495e-10 m = Å_star # (90) # Mass densities water_density_4C = 999.972 kg/m^3 = ρH2O_4C # approximate