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    • repo_stats

      Public
      Git and citation stats for your repo and papers
      Python
      BSD 3-Clause "New" or "Revised" License
      6400Updated Apr 6, 2026Apr 6, 2026
    • astropy-iers-data

      Public
      IERS data maintained by @astrofrog and astropy.utils.iers maintainers
      Python
      BSD 3-Clause "New" or "Revised" License
      9375Updated Apr 6, 2026Apr 6, 2026
    • astropy

      Public
      Astronomy and astrophysics core library
      Python
      BSD 3-Clause "New" or "Revised" License
      2.1k5.1k1.3k131Updated Apr 5, 2026Apr 5, 2026
    • specreduce

      Public
      Tools for the reduction of spectroscopic observations from Optical and NIR instruments
      Jupyter Notebook
      4167519Updated Apr 5, 2026Apr 5, 2026
    • pyvo

      Public
      An Astropy affiliated package providing access to remote data and services of the Virtual Observatory (VO) using Python.
      Python
      BSD 3-Clause "New" or "Revised" License
      5884723Updated Apr 3, 2026Apr 3, 2026
    • photutils

      Public
      Astropy package for source detection and photometry. Maintainer: @larrybradley
      Python
      BSD 3-Clause "New" or "Revised" License
      149296364Updated Apr 3, 2026Apr 3, 2026
    • extension-helpers

      Public
      Helpers to assist with building Python packages with compiled C/Cython extensions
      Python
      BSD 3-Clause "New" or "Revised" License
      141753Updated Apr 2, 2026Apr 2, 2026
    • regions

      Public
      Astropy package for region handling Maintainers: @larrybradley @keflavich
      Python
      BSD 3-Clause "New" or "Revised" License
      57655110Updated Apr 2, 2026Apr 2, 2026
    • SPISEA

      Public
      Stellar Population Synthesis Modeling
      Python
      3970148Updated Apr 2, 2026Apr 2, 2026
    • astroscrappy

      Public
      Speedy Cosmic Ray Annihilation Package in Python
      Cython
      367962Updated Apr 1, 2026Apr 1, 2026
    • pytest plugin to facilitate comparison of results to a pre-defined reference
      Python
      Other
      212741Updated Apr 1, 2026Apr 1, 2026
    • Functions and classes to access online data resources. Maintainers: @keflavich and @bsipocz and @ceb8
      Python
      BSD 3-Clause "New" or "Revised" License
      43577336448Updated Apr 1, 2026Apr 1, 2026
    • Benchmarks for the astropy project
      Python
      BSD 3-Clause "New" or "Revised" License
      349153Updated Apr 1, 2026Apr 1, 2026
    • pytest plugin to add diagnostic information to the header of the test output
      Python
      BSD 3-Clause "New" or "Revised" License
      11830Updated Apr 1, 2026Apr 1, 2026
    • astroplan

      Public
      Observation planning package for astronomers – maintainer @bmorris3
      Python
      BSD 3-Clause "New" or "Revised" License
      1192205319Updated Apr 1, 2026Apr 1, 2026
    • halotools

      Public
      Python package for studying large scale structure, cosmology, and galaxy evolution using N-body simulations and halo models
      Python
      BSD 3-Clause "New" or "Revised" License
      68117613Updated Apr 1, 2026Apr 1, 2026
    • This is the extension library for ASDF to provide support for Astropy.
      Python
      BSD 3-Clause "New" or "Revised" License
      2019132Updated Apr 1, 2026Apr 1, 2026
    • specutils

      Public
      An Astropy coordinated package for astronomical spectroscopy. Maintainers: @rosteen @keflavich @eteq
      Python
      13319620014Updated Apr 1, 2026Apr 1, 2026
    • Documents and policies regarding the Astropy Project as a whole.
      TeX
      Creative Commons Attribution 4.0 International
      46467011Updated Mar 31, 2026Mar 31, 2026
    • ccdproc

      Public
      Astropy affiliated package for reducing optical/IR CCD data
      Python
      BSD 3-Clause "New" or "Revised" License
      8994676Updated Mar 30, 2026Mar 30, 2026
    • BSD-licensed HEALPix for Astropy - maintained by @astrofrog and @lpsinger
      C
      BSD 3-Clause "New" or "Revised" License
      2460263Updated Mar 30, 2026Mar 30, 2026
    • reproject

      Public
      Python-based Astronomical image reprojection :milky_way: - maintainers @astrofrog @Cadair @svank
      Python
      BSD 3-Clause "New" or "Revised" License
      70125698Updated Mar 27, 2026Mar 27, 2026
    • Truth images for visualization tests in CircleCI
      BSD 3-Clause "New" or "Revised" License
      4100Updated Mar 24, 2026Mar 24, 2026
    • The Astropy web pages
      HTML
      BSD 3-Clause "New" or "Revised" License
      10647264Updated Mar 19, 2026Mar 19, 2026
    • Standalone version of the Astropy sphinx theme
      JavaScript
      BSD 3-Clause "New" or "Revised" License
      205143Updated Mar 2, 2026Mar 2, 2026
    • Pytest plugin to control whether tests are run that have remote data
      Python
      BSD 3-Clause "New" or "Revised" License
      172361Updated Mar 2, 2026Mar 2, 2026
    • Read the CCD guide here:
      Jupyter Notebook
      BSD 3-Clause "New" or "Revised" License
      56108303Updated Mar 1, 2026Mar 1, 2026
    • Metapackage for all the testing machinery used by the Astropy Project
      Python
      BSD 3-Clause "New" or "Revised" License
      13520Updated Mar 1, 2026Mar 1, 2026
    • Sphinx extension for generating API documentation
      Python
      BSD 3-Clause "New" or "Revised" License
      4866480Updated Mar 1, 2026Mar 1, 2026
    • Sphinx functionality for Astropy
      Python
      BSD 3-Clause "New" or "Revised" License
      206112Updated Mar 1, 2026Mar 1, 2026
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