Pyriod

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Python implementation of basic period detection and fitting routines for astronomical time series.

Give it a spin before you install with an example notebook on Binder. (This can take a while to load!)

To install, use

pip install Pyriod

or download the latest (possibly unstable) version from GitHub and run

python -m pip install .

Additional documentation is available at pyriod.readthedocs.io.

Note on v0.5.0 refactor

Pyriod has undergone a major revision as of v0.5, separating the analysis suite from Pyriod import Prewhitener from the GUI from Pyriod import PyriodGUI. The Pyriod objects should now also take up considerably less space in memory.

Most GUI-based functionality should be work as expected with the same from Pyriod import Pyriod structure of previous versions. Documentation is being updated to reflect the current code, and a prewhitening tutorial based on this work is in preparation.

If you encounter any errors in the current version of Pyriod, please report them here under Issues.

Acknowledgments

This code uses Qgrid and other Jupyter widgets to interactively display the frequency solution.
Unfortunately Qgrid is no longer supported. We are grateful to @zhihanyue for maintaining qgridnext.

This material is based upon work supported by the National Science Foundation under Grant No. AST-2406917.

Citation

If you use this code in a published analysis, please cite record ascl:2207.007 of the Astrophysics Source Code Library.

Project links

Data verified by PyPI on Aug 28, 2026
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Credits

Author: Keaton Bell

GitHub Statistics

Data verified by PyPI on Aug 28, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License

GNU General Public License v3 or later (GPLv3+) (GPL-3.0-or-later)

Requires

Python >=3.10

Provides Extra

test dev

Tags

asteroseismology prewhitening periodogram light curves pulsating stars Fourier analysis time domain astronomy

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