SunPy
SunPy: A Python package for Solar Physics - Published in JOSS (2020)
PyAutoLens
PyAutoLens: Open-Source Strong Gravitational Lensing - Published in JOSS (2021)
exoplanet
exoplanet: Gradient-based probabilistic inference for exoplanet data & other astronomical time series - Published in JOSS (2021)
dust_extinction
dust_extinction: Interstellar Dust Extinction Models - Published in JOSS (2024)
PyAutoFit
PyAutoFit: A Classy Probabilistic Programming Language for Model Composition and Fitting - Published in JOSS (2021)
SkyPy
SkyPy: A package for modelling the Universe - Published in JOSS (2021)
OpenSpace
OpenSpace: An open-source astrovisualization framework - Published in JOSS (2017)
pyuvdata v3
pyuvdata v3: an interface for astronomical interferometric data sets in Python - Published in JOSS (2025)
Stingray 2
Stingray 2: A fast and modern Python library for spectral timing - Published in JOSS (2024)
Gala
Gala: A Python package for galactic dynamics - Published in JOSS (2017)
<code>gollum</code>
<code>gollum</code>: An intuitive programmatic and visual interface for precomputed synthetic spectral model grids - Published in JOSS (2024)
Virgo
Virgo: A Versatile Spectrometer for Radio Astronomy - Published in JOSS (2021)
Astronomical échelle spectroscopy data analysis with `muler`
Astronomical échelle spectroscopy data analysis with `muler` - Published in JOSS (2022)
ZodiPy
ZodiPy: A Python package for zodiacal light simulations - Published in JOSS (2024)
PlanetMapper
PlanetMapper: A Python package for visualising, navigating and mapping Solar System observations - Published in JOSS (2023)
ytree
ytree: A Python package for analyzing merger trees - Published in JOSS (2019)
OMEGA-Py
OMEGA-Py: Python Tools for OMEGA Data - Published in JOSS (2024)
Plonk
Plonk: Smoothed particle hydrodynamics analysis and visualization with Python - Published in JOSS (2019)
cortecs
cortecs: A Python package for compressing opacities - Published in JOSS (2024)
pocoMC
pocoMC: A Python package for accelerated Bayesian inference in astronomy and cosmology - Published in JOSS (2022)
Fruitbat
Fruitbat: A Python Package for Estimating Redshifts of Fast Radio Bursts - Published in JOSS (2019)
SkyPortal
SkyPortal: An Astronomical Data Platform - Published in JOSS (2019)
Gauss-Radau Small-body Simulator (GRSS)
Gauss-Radau Small-body Simulator (GRSS): An Open-Source Library for Planetary Defense - Published in JOSS (2025)
popsynth
popsynth: A generic astrophysical population synthesis framework - Published in JOSS (2021)
Wakeflow
Wakeflow: A Python package for semi-analytic models of planetary wakes - Published in JOSS (2023)
EphemerisSources.jl
EphemerisSources.jl: Idiomatic Ephemeris Sourcing and Parsing in Julia - Published in JOSS (2024)
X-PSI
X-PSI: A Python package for neutron star X-ray pulse simulation and inference - Published in JOSS (2023)
Maelstrom
Maelstrom: A Python package for identifying companions to pulsating stars from their light travel time variations - Published in JOSS (2020)
coronagraph
coronagraph: Telescope Noise Modeling for Exoplanets in Python - Published in JOSS (2019)
arcesetc
arcesetc: ARC Echelle Spectrograph Exposure Time Calculator - Published in JOSS (2019)
aesop
aesop: ARC Echelle Spectroscopic Observation Pipeline - Published in JOSS (2018)
Eniric
Eniric: Extended NIR Information Content - Published in JOSS (2019)
easyaccess
easyaccess: Enhanced SQL command line interpreter for astronomical surveys - Published in JOSS (2019)
CosmicProfiles
CosmicProfiles: A Python package for radial profiling of finitely sampled dark matter halos and galaxies - Published in JOSS (2023)
deepCR
deepCR: Cosmic Ray Rejection with Deep Learning - Published in JOSS (2019)
TelescopeML -- I. An End-to-End Python Package for Interpreting Telescope Datasets through Training Machine Learning Models, Generating Statistical Reports, and Visualizing Results
TelescopeML -- I. An End-to-End Python Package for Interpreting Telescope Datasets through Training Machine Learning Models, Generating Statistical Reports, and Visualizing Results - Published in JOSS (2024)
h3ppy
h3ppy: An open-source Python package for modelling and fitting H$_3^+$ spectra - Published in JOSS (2025)
stardate
stardate: Combining dating methods for better stellar ages - Published in JOSS (2019)
Siril
Siril: An Advanced Tool for Astronomical Image Processing - Published in JOSS (2024)
lightcurver
lightcurver: A Python Pipeline for Precise Photometry of Multiple-Epoch Wide-Field Images - Published in JOSS (2024)
popkinmocks
popkinmocks: mock IFU datacubes for modelling stellar populations and kinematics - Published in JOSS (2023)
STARRED
STARRED: a two-channel deconvolution method with Starlet regularization - Published in JOSS (2023)
PyBWE
PyBWE: Python tools for Bandwidth Extrapolation of planetary radar signals - Published in JOSS (2024)
AstronomicAL
AstronomicAL: an interactive dashboard for visualisation, integration and classification of data with Active Learning - Published in JOSS (2021)
lightkurve
A friendly package for Kepler & TESS time series analysis in Python.
Foam
Foam: A Python package for forward asteroseismic modelling of gravity modes - Published in JOSS (2024)
ldtk
Python toolkit for calculating stellar limb darkening profiles and model-specific coefficients using the stellar atmosphere spectrum library by Husser et al. (2013). Described in Parviainen & Aigrain, MNRAS 453, 3821–3826 (2015).
scri
Python/numba code for manipulating time-dependent functions of spin-weighted spherical harmonics on future null infinity
astrophot
A fast, flexible, automated, and differentiable astronomical image 2D forward modelling tool for precise parallel multi-wavelength photometry
pyscope
pyscope is a pure-Python package for control of small robotic telescopes.
photutils
Astropy package for source detection and photometry. Maintainer: @larrybradley
regularizepsf
A Python package for manipulating and correcting variable point spread functions.
astroquery
Functions and classes to access online data resources. Maintainers: @keflavich and @bsipocz and @ceb8
jwst-coronagraph-visibility
Visualize approximate pointing constraints for JWST coronagraphs.
https://github.com/zblz/naima
Derivation of non-thermal particle distributions through MCMC spectral fitting
resonances
A python package for identification of mean-motion resonances in the Solar system and other planetary systems.
sdss-marvin
Data access and visualization for MaNGA. http://sdss-marvin.readthedocs.io/en/latest/
https://github.com/threeml/astromodels
Spatial and spectral models for astrophysics
lsstdesc-weaklensingdeblending
Weak lensing fast simulations and analysis of blended objects.
https://github.com/arjunsavel/simmer
An open-source & modular reduction pipeline for astronomical images of point sources.
https://github.com/galsim-developers/galsim
The modular galaxy image simulation toolkit. Documentation: