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.

SpiceyPy: a Pythonic Wrapper for the SPICE Toolkit.

The astrology software "Astrolog", version 7.80

寿星天文历(万年历)5.10 原版来自农历论坛：http://bbs.nongli.net/dispbbs_2_14995.html

Swiss Ephemeris binding for node.js

ANISE provides a toolkit and files for Attitude, Navigation, Instrument, Spacecraft, and Ephemeris data. It's a modern replacement of the NAIF SPICE toolkit.

A Modern Fortran Library for Astrodynamics 🚀

The definitive Swiss Ephemeris bindings for Node.js

Pure javascript implementation of ephemeris calculations for sun, planets, comets, asteroids and stars.

Astro: Go Astronomy Algorithms Library - Chinese Lunar Calendar, Solar/Lunar Eclipses, Sun/Moon/Planet Positions, Rise/Set, Planet Events, Stars, Coordinates, Orbits, Sundials and Lightweight Ephemerides (天文算法 Go 库：农历、日月食、日月行星位置、升落、行星天象、恒星、坐标、轨道、日晷与轻量星历)

🌏 📡 🌏 📡 LEOGPS - Satellite Navigation with GPS on Python!

Simulation of the full GPS stack, from satellites' transmission to position calculation at receivers

A program to calculate your ephemerides.

Displays time and astrological data (moon phases, positions of planets & celestial points in zodiac)

ES6 "re-implementation" of ephemeris calculations for sun, planets, comets, asteroids and stars.

The Swiss Ephemeris available through Swift Package Manager

A command-line tool for producing tables of the positions of solar system objects over time.

RINEX File Reader - Supports v2.x (GPS) and v3.x (GPS, GLONASS, GALILEO)

Sample code for astrological calculation written by JavaScript

Golang interface binding to the Swiss Ephemeris C library.