A simple command to convert calendar dates to julian dates. Quite useful in timing situations where you need elapsed time between dates. Also useful for astronomy applications.
PODWG is a Wallpaper Generator from various "Picture Of the Day" sources such as NASA's "Astronomy Picture Of the Day".
PulsarHunter is a java based package for pulsar searching. It operates on a number of standard data formats. This package also includes the JReaper graphical candidate selection tool.