Stacking program, astrometric (plate) solver, fits file viewer
A planetarium software that shows a 3D simulation of the night sky
Data Analysis, Simulations and Visualization on the Sphere
Hallo Northern Sky planetarium program
Astronomy CCD capture software
Routines for wavefront propagation in IDL, Matlab, and Python
All-in-one Astrophotography Software Works on multi-OperatingSystem
Satellite tracking software
Navigational Algorithms - Marine navigation
Night Vision is a "planetarium" program written in Java
A collection of java astronomy tools
Build your own GPS unit
DIY project to build a cover, flat panel or combo flip-flat panel
General data-reduction tool for fiber-fed integral-field spectrographs
Earth orbits and satellite coverage display in 3D on your laptop.
Command-line tools for astronomy and astrophysics
automation tool to analyze Foucault test results of parabolic mirrors
Fortran library to compute positions of celestial bodies