INDIGO is a system of standards and frameworks for multiplatform and distributed astronomy software development designed to scale with your needs.

A useful set of tools for Adaptive Optics in Python

This repo provides material for recreating the famous paper by Jean-Pierre Luminet (1979), simulating the first image of a Schwarzschild black hole.

Astronomy Library for C++

VSOP87 in multiple programming languages

The Aegean source finding program and associated tools

The most comprehensive collection of accurate astronomical algorithms in JavaScript (TypeScript).

giza - a scientific plotting library for C/Fortran

Astronomical library for JavaScript

Galaxy Line Emission & Absorption Modeling

Astrarium — open-source planetarium software for Windows

Astronomy. VSOP2013 planetary positions. PlanetFun App: Solar system model in 3D. LeapFrog Gravity Integration. Stars, Moon and planets. The discovery of Neptune

The Naval Observatory NOVAS C astrometry library, made better

Javascript library for positional astronomy

rustronomy-fits: a rust library for reading and writing fits files

Advanced Computing for Astronomy Library

Gas and Dust Python Calculator

C# Astronomy Library

a free pascal astronomical library

Library of astronomical calculations, based on "Astronomy On The Personal Computer" by O.Montenbruck and T.Phleger .