XEPHEM27, MOTIF TOYS, An interactive astronomical ephemeris for X WINDOW


			Welcome to xephem v2.7.1

Xephem is an interactive astronomical ephemeris program for X Windows
systems. It ...

    computes heliocentric, geocentric and topocentric information for fixed
    celestial objects and objects in heliocentric and geocentric orbits;

    has built-in support for all planet positions; the moons of Jupiter, Saturn
    and Earth; Mars' and Jupiter's central meridian longitude; Saturn's rings;
    and Jupiter's Great Red Spot

    supports user-defined objects;

    comes with sample databases of over 20,000 objects in the release kit;

    can access the Hubble Guide Star Catalog from CD-ROM using gscdbd;

    can quickly locate all pairs of objects which are closer than a specified
    maximum;

    displays data in configurable tabular forms and in several detailed
    graphical formats; 

    can plot and list all data fields to disk files;

    can be programmed to search for arbitrary circumstances;