A professional astronomy software and astro editing app

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

This is the official GitHub repository for OpenSpace: an open source astrovisualization project. For instructions on how to build and run OpenSpace, see the Getting Started Guides on the wiki page at http://docs.openspaceproject.com.

High-precision Chinese lunar calendar tool based on JPL DE ephemeris.高精度天文农历引擎 (JPL DE440/442)。支持计算节气、月相、公农历转换；支持 JSON/CSV/ICS 格式输出；内置交互模式与命令行工具；跨平台 C++/C 接口。

This is the c/c++ library of Jared Males. It contains code I have developed for data analysis and other tasks, primarily related to astronomy. The documentation is located here: https://jaredmales.github.io/mxlib/ See the User's Guide for installation instructions.

Real-time 3D visualization of space.

make time table of sunrise, sunset, moonrise, moonset and culmination.

GDL - GNU Data Language

DuckDB extension for astronomical calculations — 57 SQL functions for coordinates, photometry, cosmology, orbital mechanics, and celestial body models.

A C++ static library for astronomic calculation and modding SpaceEngine

Universe simulator reachable on your Windows PC.

nFITSview - A user-friendly FITS image viewer for astronomers

Geo-Astronomical library for artist

Highly experimental code for planetary image stacking with OpenCV

C++ library for ODE integration via Taylor's method and LLVM

Fast radial basis function interpolation and kriging for large scale data

Scalable 1D Gaussian Processes in C++, Python, and Julia

lunalign: Stacking for Lunar and Planetary Imaging

LePHARE is a code for calculating photometric redshifts.

3D Monte Carlo radiative transfer code