Astropy: A community Python package for astronomy
Open accessAbstract
We present the first public version (v0.2) of the open-source and community-developed Python package, Astropy. This package provides core astronomy-related functionality to the community, including support for domain-specific file formats such as flexible image transport system (FITS) files, Virtual Observatory (VO) tables, and common ASCII table formats, unit and physical quantity conversions, physical constants specific to astronomy, celestial coordinate and time transformations, world coordinate system (WCS) support, generalized containers for representing gridded as well as tabular data, and a framework for cosmological transformations and conversions. Significant functionality is under activedevelopment, such as a model fitting framework, VO client and server tools, and aperture and point spread function (PSF) photometry tools. The core development team is actively making additions and enhancements to the current code base, and we encourage anyone interested to participate in the development of future Astropy versions.
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Gómez, P., Ruhberg, L. E., Nardone, M. T., & O'Ryan, D. (2025) · arXiv · doi:10.48550/arxiv.2505.03509
- Authors
- The Astropy Collaboration, Robitaille, T. P., Tollerud, E. J., Greenfield, P., Droettboom, M., Bray, E., Aldcroft, T., Davis, M., Ginsburg, A., Price-Whelan, A. M., Kerzendorf, W. E., Conley, A., Crighton, N., Barbary, K., Muna, D., Ferguson, H., Grollier, F., Parikh, M. M., Nair, P. H., Günther, H. M., Deil, C., Woillez, J., Conseil, S., Kramer, R., Turner, J. E. H., Singer, L., Fox, R., Weaver, B. A., Zabalza, V., Edwards, Z. I., Azalee Bostroem, K., Burke, D. J., Casey, A. R., Crawford, S. M., Dencheva, N., Ely, J., Jenness, T., Labrie, K., Lim, P. L., Pierfederici, F., Pontzen, A., Ptak, A., Refsdal, B., Servillat, M., & Streicher, O.
- Affiliations
- Max Planck Institute for Astronomy (DE)
- Yale University (US)
- Space Telescope Science Institute (US)
- Center for Astrophysics Harvard & Smithsonian (US)
- University of Colorado Boulder (US)
- Columbia University (US)
- University of Toronto (CA)
- Argonne National Laboratory (US)
- The Ohio State University (US)
- Sardar Vallabhbhai National Institute of Technology Surat (IN)
- Max Planck Institute for Nuclear Physics (DE)
- European Southern Observatory (DE)
- Centre National de la Recherche Scientifique (FR)
- ETH Zurich (CH)
- International Gemini Observatory (US)
- California Institute of Technology (US)
- New York University (US)
- Louisiana State University (US)
- Australian National University (AU)
- South African Radio Astronomy Observatory (ZA)
- Cornell University (US)
- University of Oxford (GB)
- Goddard Space Flight Center (US)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Leibniz Institute for Astrophysics Potsdam (DE)
- ORCID
- Robitaille, Thomas P.
- Tollerud, Erik J.
- Greenfield, Perry
- Ginsburg, Adam
- Price-Whelan, Adrian M.
- Kerzendorf, Wolfgang E.
- Crighton, Neil
- Barbary, Kyle
- Muna, Demitri
- Ferguson, Henry
- Günther, Hans M.
- Deil, Christoph
- Woillez, Julien
- Conseil, Simon
- Turner, James E. H.
- Weaver, Benjamin A.
- Zabalza, Victor
- Burke, D. J.
- Casey, Andrew R.
- Crawford, Steven M.
- Dencheva, Nadia
- Ely, Justin
- Jenness, Tim
- Labrie, Kathleen
- Lim, Pey Lian
- Pontzen, Andrew
- Servillat, Mathieu
- Streicher, Ole
- Venue
- Astronomy & Astrophysics
- Publisher
- EDP Sciences
- Published
- 2013-09-30
- Volume
- 558
- Pages
- A33
- ISSN
- 0004-6361 (ISSN-L)
- 1432-0746
- OpenAlex
- W2135625048
- Cited by
- 14,620
- References
- 33
- Citations by year
- 2026: 1525 · 2025: 2134 · 2024: 1987 · 2023: 1697 · 2022: 1668 · 2021: 1624 · 2020: 1264 · 2019: 939 · 2018: 773 · 2017: 460 · 2016: 275 · 2015: 177 · 2014: 92 · 2013: 4
- Type
- software paper
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Astronomy and Astrophysics (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- HAL (submittedVersion, other-oa)
- CaltechAUTHORS (California Institute of Technology) (submittedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- UCL Discovery (University College London) (submittedVersion)
- ANU Open Research (Australian National University) (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
- Swinburne figshare (Swinburne University of Technology) (submittedVersion)
- arXiv (Cornell University)
- Funders
- National Aeronautics and Space Administration (NAS8-39073)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Computational Physics and Python Applications
- Physical Sciences › Physics and Astronomy › Instrumentation › Astronomy and Astrophysical Research
- Physical Sciences › Engineering › Computational Mechanics › Astronomical Observations and Instrumentation
- Keywords
- astropy, Python library, astronomy software, FITS files, physical constants, time transformation, world coordinate system, model fitting, photometry, open source software
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