What’s New

0.2.1 (18 Apr 2026)

• Added support for astropy==7.2.0 sky coordinates.

By Callan Gray.

0.2.0 (31 Mar 2026)

• Added coordinates submodule with coordinates.dataset_to_skycoord() and coordinates.skycoord_to_dataset() explicit conversion functions for working with astropy.coordinates.SkyCoord.

• Added support for specialized quantities:

  • astropy.time.Time

  • astropy.time.TimeDelta

  • astropy.coordinates.Angle

  • astropy.coordinates.Longitude

  • astropy.coordinates.Latitude

  • astropy.coordinates.Distance

  • astropy.units.LogQuantity

• Added Dataset.astropy.to_skycoord() accessor.

By Callan Gray.

0.1.0 (17 Jul 2025)

• Added equivalencies parameter to DataArray.astropy.to() and Dataset.astropy.to().

• Removed registry parameter from DataArray.astropy.quantify() and Dataset.astropy.quantify().

• Migrated pint.Quantity usage to astropy.units.Quantity, pint.UnitRegistry to astropy.units, pint.UnitRegistry.formatter to astropy.units.format (PR1)

  Notable behavioural differences include:

  • Unit registry instance is managed at module scope instead of local scope.

  • Multiplying by an array by an astropy.units.Unit coerses to astropy.units.Quantity of float64. Explicit construction required to use other numpy dtypes.

  • astropy.units.Quantity uses unit and value members instead of units and magnitude.

  • Unit() is not an instance of astropy.units.Unit, only astropy.units.UnitBase.

  • Different format literals, see built-in formats.

By Callan Gray.