VII.1. Basic concepts

This part of the package is intended for drawing picture of the apparent motion of minor or major planets in the sky with respect to fixed stars. The picture is traced using astrometric geocentric positions of planet referred to the equator and equinox J2000.0 without regard for perturbations.

It is possible to trace the tracks of up to three objects simultaneously on one screen. User should specify object(s) and the initial and final moments of time interval.