<sect2 id="calc-ecliptic"> <title >Ecliptic Coordinates module</title> <indexterm ><primary >Tools</primary> <secondary >Astrocalculator</secondary> <tertiary >Ecliptic Coordinates module</tertiary> </indexterm> <screenshot> <screeninfo >The Ecliptic Coordinates calculator module </screeninfo> <mediaobject> <imageobject> <imagedata fileref="calc-ecliptic.png" format="PNG"/> </imageobject> <textobject> <phrase >Ecliptic Coordinates</phrase> </textobject> </mediaobject> </screenshot> <para >This module converts between <link linkend="equatorial" >Equatorial coordinates</link > and <link linkend="ecliptic" >Ecliptic coordinates</link >. First, select which coordinates should be taken as input values in the <guilabel >Choose Input Coordinates</guilabel > section. Then, fill in the corresponding coordinate values in either the <guilabel >Ecliptic coordinates</guilabel > or <guilabel >Equatorial coordinates</guilabel > section. Finally, press the <guibutton >Compute</guibutton > button, and the complementary coordinates will be filled in. </para> <para >The module contains a batch mode for converting several coordinate pairs at once. You must construct an input file in which each line contains two values: the input coordinate pairs (either Equatorial or Ecliptic). Then specify which coordinates you are using as input, and identify the input and output filenames. Finally, press the <guibutton >Run</guibutton > button to generate the output file, which will contain the converted coordinates (Equatorial or Ecliptic; the complement of what you chose as the input values). </para> </sect2>