XEphem is an interactive astronomical ephemeris program for X Windows
systems.  For a full tour of features and the latest news, visit the
XEphem home page at:

    http://iraf.noao.edu/~ecdowney/xephem.html

In brief, XEphem can display views of the sky, moon, Earth, solar system,
Jupiter, Saturn, and Mars, and can print any view or save it to a postscript
file.

For a compendium of additional database files for XEphem, see

    http://iraf.noao.edu/~ecdowney/db.html