Skip to content

The Astropy Project

Astropy Project Logo

The Astropy Project is a community effort to develop a core package for astronomy using the Python programming language and improve usability, interoperability, and collaboration between astronomy Python packages. The core astropy package contains functionality aimed at professional astronomers and astrophysicists, but may be useful to anyone developing astronomy software. The Astropy Project also includes "affiliated packages," Python packages that are not necessarily developed by the core development team, but share the goals of Astropy, and often build from the core package's code and infrastructure.

Aside from the actual code, Astropy is also a community of astronomy-associated users and developers that agree that sharing utilities is healthy for the community and the science it produces. This community is of course central to accomplishing anything with the code itself. We welcome anyone who wishes to contribute to the project and expect everyone in our community to follow the code of conduct when interacting with others.

For more details on background of the project, you can read the original vision from when the project was founded.

For more details, please visit https://www.astropy.org

Pinned Loading

  1. astropy astropy Public

    Astronomy and astrophysics core library

    Python 5.4k 2.2k

  2. astropy.github.com astropy.github.com Public

    The Astropy web pages

    Python 47 107

  3. astropy-APEs astropy-APEs Public

    A repository storing the Astropy Proposals for Enhancement.

    40 41

  4. astropy-project astropy-project Public

    Documents and policies regarding the Astropy Project as a whole.

    TeX 49 48

Repositories

Showing 10 of 86 repositories
  • astroscrappy Public

    Speedy Cosmic Ray Annihilation Package in Python

    astropy/astroscrappy's past year of commit activity
    Cython 82 35 6 2 Updated Nov 1, 2026
  • pytest-arraydiff Public

    pytest plugin to facilitate comparison of results to a pre-defined reference

    astropy/pytest-arraydiff's past year of commit activity
    Python 27 21 6 2 Updated Nov 1, 2026
  • reproject Public

    Python-based Astronomical image reprojection 🌌 - maintainers @astrofrog @Cadair @svank

    astropy/reproject's past year of commit activity
    Python 128 BSD-3-Clause 78 67 11 Updated Nov 1, 2026
  • astropy-benchmarks Public

    Benchmarks for the astropy project

    astropy/astropy-benchmarks's past year of commit activity
    Python 8 BSD-3-Clause 37 15 5 Updated Nov 1, 2026
  • pytest-astropy-header Public

    pytest plugin to add diagnostic information to the header of the test output

    astropy/pytest-astropy-header's past year of commit activity
    Python 8 BSD-3-Clause 10 4 1 Updated Nov 1, 2026
  • astropy Public

    Astronomy and astrophysics core library

    astropy/astropy's past year of commit activity
    Python 5,408 BSD-3-Clause 2,232 1,258 138 Updated Nov 1, 2026
  • pyregion Public

    ds9 region parser for python

    astropy/pyregion's past year of commit activity
    Python 41 MIT 41 11 4 Updated Nov 1, 2026
  • repo_stats Public

    Git and citation stats for your repo and papers

    astropy/repo_stats's past year of commit activity
    Python 4 BSD-3-Clause 5 1 0 Updated Nov 1, 2026
  • astropy-integration-testing Public

    Regular integration tests of Coordinated packages with astropy

    astropy/astropy-integration-testing's past year of commit activity
    Python 4 6 4 0 Updated Nov 1, 2026
  • asdf-astropy Public

    This is the extension library for ASDF to provide support for Astropy.

    astropy/asdf-astropy's past year of commit activity
    Python 19 BSD-3-Clause 23 14 4 Updated Nov 1, 2026