Ephemeris Python Packages

spiceypy

SpiceyPy: a Pythonic Wrapper for the SPICE Toolkit.

kerykeion

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.

anise

A thread-safe alternative to NASA SPICE toolkit, computing spacecraft, planetary, coordinate frame, instrument transformations, ground station visibility, and orbital elements. Engineered for high-throughput Python concurrent execution and flight software, with proven lunar flight heritage.

moira-astro

Astronomy-first pure-Python ephemeris and astrology computation engine with transparent, auditable calculations.

py-ephemeris-bazi

Python bindings for Taiyin Ephemeris

py-ephemeris

Python bindings for Taiyin Ephemeris

py-ephemeris-ziwei

Python bindings for Taiyin Ephemeris

libephemeris

High-precision Python ephemeris — NASA JPL DE440/DE441 via Skyfield, Swiss-Ephemeris independent, compatible API.

astroceleste-engine

Astrological chart calculation on JPL ephemerides in pure Rust, with Python and WebAssembly bindings.

linecast

Weather, tides, the sun, the moon, maps, and a planetarium, in your terminal. The Old Farmer's Almanac meets Minitel.

calcchinesecalendar

High-precision Chinese lunar calendar tool based on JPL DE ephemeris.

vedaksha

Vedaksha — clean-room Vedic astrology & astronomical ephemeris engine (kundali, panchanga, dashas, nakshatras, vargas) with sub-arcsecond precision. Rust, Python, WebAssembly, and an MCP server for AI agents.

bazaar-of-fates

🔮 Eleven traditional divination systems (Western astrology · BaZi · 紫微斗數 · I Ching · Jyotiṣa …) as deterministic Python engines with bilingual AI readings — real-astronomy charts, transits, progressions, synastry, group & multi-year forecasts.

kerykeion-cli

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.

almanac-compute

Deterministic, verifiable ephemeris + geomagnetic computation — the physical numbers LLMs hallucinate, computed correctly and checked against NOAA & JPL.

astromansion

Official Python client for the AstroMansion astrology API

planetmapper

PlanetMapper: An open source Python package for visualising, navigating and mapping Solar System observations

stellium

A modern Python library for astrological chart calculation, visualization, reporting and data analysis. Built on the Swiss Ephemeris for astronomical accuracy.

spacetracktool

A Python class for making requests to space-track.org

kosmorrolib

Kosmorrolib, a library to calculate ephemerides.

astronomia

Python package to calculate ephemeris of Sun, Moon, and planets.

gmat-run

Run GMAT mission scripts from Python and get results as pandas DataFrames.

azely

:zap: Azimuth/elevation calculator for astronomical objects

thirdtrail

Python client for the thirdtrail APIs — elevation-corrected sun, moon, solar irradiance and tide data for any point on Earth.