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
Satellite tracking software
Astronomy CCD capture software
Hallo Northern Sky planetarium program
Routines for wavefront propagation in IDL, Matlab, and Python
All-in-one Astrophotography Software Works on multi-OperatingSystem
Navigational Algorithms - Marine navigation
DIY project to build a cover, flat panel or combo flip-flat panel
Night Vision is a "planetarium" program written in Java
automation tool to analyze Foucault test results of parabolic mirrors
Fortran library to compute positions of celestial bodies
A collection of java astronomy tools
General data-reduction tool for fiber-fed integral-field spectrographs
Virtual Planetarium and other Astronomical Calculation Routines
ProStack - a platform for image processing and analysis
Build your own GPS unit