Data-Driven Astrology 💫 Kerykeion is a Python library for astrology. It generates SVG charts and extracts detailed structured data for birth charts, synastry, transits, composite charts, and more.

python svg charts data-science data-driven ephemeris zodiac-sign astrology planets astrologer astronomical-algorithms transits zodiac-algorithm birthchart synastry astrology-calculator zodiacsign-calculator composite-chart tranist-chart

• Updated Nov 12, 2026
• Python

The most comprehensive collection of accurate astronomical algorithms in Swift.

swift algorithm framework cplusplus objective-c astronomy astro ios-swift astrophysics macos-swift ios-sdk orbital-mechanics astronomical-algorithms swift-4 macos-framework

• Updated May 31, 2026
• C++

KSP Trajectory Optimization Tool

astrodynamics ksp kerbal-space-program kerbalspaceprogram trajectory-optimization space-mission trajectory-analysis astronomical-algorithms orbital-dynamics ksp-mods ksp-kos astrodynamics-calculations space-mission-design

• Updated Oct 15, 2026
• MATLAB

Adhan for Dart / Muslim Prayer Times Library. Now retrieving Prayer time in Dart easier than ever.

prayer-times astronomical-algorithms astronomical-calculations adhan-dart adhan-java adhan-flutter

• Updated Sep 19, 2025
• Dart

python simulations sph hydrodynamics astronomical-algorithms hydrodynamic-modeling llnl meshfree simulations-physics math-physics

• Updated Nov 12, 2026
• C++

Geo-Astronomical library for artist

python c-plus-plus cpp astronomy astronomical-algorithms

• Updated Nov 3, 2026
• C++

Arduino library to calculate the times of sunrise, sunset, solar noon, twilight, the solar position, and more.

sunrise sunset arduino astronomy solar astronomical-algorithms meeus

• Updated May 18, 2025
• C++

Astrology Calculator calculates moon's rise/set times, moon Age, moon phases and Zodiac Sign for location and time

swift swift-package-manager swift-framework moon zodiac-sign suncalc moon-phase astronomical-algorithms lunar-calendar swift4 swift5 astrology-calculator moon-rise moon-age

• Updated Feb 9, 2025
• Swift

The science fiction calculation spreadsheet

astronomy excel libreoffice spreadsheet google-sheets asteroids calculations science-fiction scifi worldbuilding stars calculators planets office-365 astronomical-algorithms libreoffice-calc astronomy-astrophysics collabora-office black-holes moons

• Updated Jan 17, 2025

X-PSI: X-ray Pulse Simulation and Inference

astronomy modeling astrophysics sampling parameter-estimation astronomical-algorithms likelihood-functions statistics-modeling x-ray-astronomy astrophysical-simulation posterior-sampling

• Updated Nov 11, 2026
• Python

GUI application for calculating human-visible colors of celestial bodies from their photometric data

python spectrum color astronomy space planet colors image-processing data-visualization astro photometry redshift spectra planets spectral-analysis astronomical-algorithms planetary-science gamma-correction blackbody blackbody-radiation

• Updated Nov 12, 2026
• Python

Astrarium — open-source planetarium software for Windows

csharp astronomy astronomical-algorithms planetarium astronomy-library astronomy-api astronomy-software planetarium-software

• Updated Oct 25, 2026
• C#

The Astrobook source files

astronomy astrodynamics orbital-mechanics astronomical-algorithms orbital-dynamics

• Updated Feb 19, 2021
• Asymptote

NASA/JPL SPICE Toolkit for C – patched for cross-platform compatibility

windows macos linux cross-platform astronomy nasa webassembly wasm astronomical-algorithms cspice celestial-mechanics ephemeris-calculations jpl-spice-toolkit naif-spice-toolkit naif-cspice

• Updated May 10, 2022
• C

GPU Framework for Radio Astronomical Image Synthesis

gpu cuda astrophysics gpu-acceleration gpu-computing radioastronomy optimization-methods complex-systems astronomical-images multi-gpu alma ska vla astronomical-algorithms maximum-entropy image-synthesis radio-interferometry radio-imaging

• Updated May 19, 2026
• Cuda

Containerized radio interferometry scripting framework -- NB: Classic version is no longer in active development, use stimela 2! See README for details.

pipelines workflow-management astronomical-algorithms

• Updated Oct 30, 2026
• Python

arduino library to calculate moon day and sunrise and sunset times

arduino-ide moon sun astronomical-algorithms

• Updated Apr 28, 2022
• C++

Parallelized rotation and flipping INvariant Kohonen maps

machine-learning som kohonen-map self-organizing-map astronomical-algorithms som-training

• Updated Aug 9, 2023
• Jupyter Notebook

Chinese Calendar in calendar(1) for BSD, Linux & macOS

reminder unix calendar bsd chinese astronomical-algorithms calendrical-calculations

• Updated Nov 6, 2024
• C

A Python package for working with pipeline-produced spectra from IGRINS, HPF, and Keck NIRSPEC

python data-science astronomy exoplanets data-analysis stars spectroscopy infrared astronomical-algorithms stellar-atmospheres echelle

• Updated Nov 10, 2026
• TeX