AudeLA is a TCL extension aimed at providing amateur astronomers with image processing, telescope controling, ccd camera driving, and various astronomical algorithms.
A planetarium software that shows a 3D simulation of the night sky
Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.
Real time satellite tracking and orbit prediction
Gpredict is a real-time satellite tracking and orbit prediction application. Gpredict can track an unlimited number of satellites and display the data in tables and various graphical view.
Jewish prayer times
Android application that displays list of halachic/halakhic times for Jewish prayers (zmanim and zmanei tefillot).
Small Qt/Qwt program to display an analemma diagram of the sun. This is the curve representing the sun's angular height above the horizon. The program shows one curve per full hour (the real analemma) and one for every first day of a month.
Java based astronomical logging software which stores it's data in a free and open XML based format (OpenAstronomyLog).
Java version of Stellarium.