id: asdf://astropy.org/astropy/manifests/units-1.0.0
extension_uri: asdf://astropy.org/astropy/extensions/units-1.0.0
title: Astropy unit extension 1.0.0
description: |-
  A set of tags to inject into asdf-standard to enable serializing astropy units
  related objects
tags:
  # unit/unit is duplicated from the core to allow the unit converter to select
  # the core tag for vo units
  - tag_uri: tag:stsci.edu:asdf/unit/unit-1.0.0
    schema_uri: http://stsci.edu/schemas/asdf/unit/unit-1.0.0
    title: Physical unit.
    description: |-
      This represents a physical unit, in [VOUnit syntax, Version 1.0](http://www.ivoa.net/documents/VOUnits/index.html).
      Where units are not explicitly tagged, they are assumed to be in VOUnit syntax.
  - tag_uri: tag:astropy.org:astropy/units/unit-1.0.0
    schema_uri: http://stsci.edu/schemas/asdf/unit/unit-1.0.0
    title: Represents an astropy derived unit
    description: |-
      Supports serialization of the non-VOunits supported by astropy
  - tag_uri: tag:astropy.org:astropy/units/equivalency-1.0.0
    schema_uri: http://astropy.org/schemas/astropy/units/equivalency-1.0.0
    title: Represents unit equivalency.
    description: |-
      Supports serialization of equivalencies between units
      in certain contexts
  - tag_uri: tag:astropy.org:astropy/units/magunit-1.0.0
    schema_uri: http://astropy.org/schemas/astropy/units/magunit-1.0.0
    title: Represents a Magnitude Unit
    description: |-
      Represents the serialization of the MagUnit units built into
      astropy.