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<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>
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