Detailed_Input">Detailed_Input</a></h4>
<PRE>
 
   range      is the distance of the point from the origin.  Output
              units are the same as the units associated with `range.'
 
   ra         is the right ascension of the input point:  the angular
              distance measured toward the east from the prime meridian
              to the meridian containing the input point. The direction
              of increasing right ascension is from the +X axis towards
              the +Y axis.

         