Astronomy GitHub Repositories (2026) · Open Source Tools

Free macOS menu-bar app for astrophotography: finds tonight's clear window, ranks your targets, tells you when it's worth setting up.

Astronomy and astrophysics core library

Software to manage a Linux-based All Sky Camera.

Record a sky camera around the clock, keep the footage on your own disk, and find what flew past.

Wolfram Language / Mathematica reimplementation in Rust (Wolfram oxidized)

N.I.N.A. (Nighttime Imaging 'N' Astronomy) - Advanced astrophotography sequencing software for Windows, supporting full automation of imaging sessions.

Universe simulator reachable on your Android device.

Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows, macOS and Haiku. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.

An open source Python package for plasma research and education

Sound generates the terrain, tilt shapes the world, real-world time and weather shape the sky — a tiny living world for M5Stack Cardputer ADV.

Real-time 3D visualization of space.

Astropy package for source detection and photometry. Maintainer: @larrybradley

Astra: an open-source observatory control software.

Galactic and gravitational dynamics in Python

Astronomy and astrometry Ruby library for astronomical data and events

Java sun position code (topocentric coordinates, sunrise/sunset/twilight) based on the NREL SPA and ENEA/Grena algorithms.

ds9 region parser for python

Astronomical library for JavaScript

A pythonic interface for radio astronomy interferometry data (uvfits, measurement sets, uvh5, others)

Calibration software for the Murchison Widefield Array (MWA) radio telescope