<sect2 id="calc-eqgal"> <title>Equatorial/Galactic Coordinates module</title> <indexterm><primary>Tools</primary> <secondary>Astrocalculator</secondary> <tertiary>Equatorial/Galactic Coordinates module</tertiary> </indexterm> <screenshot> <screeninfo>The Equatorial/Galactic Coordinates calculator module </screeninfo> <mediaobject> <imageobject> <imagedata fileref="calc-eqgal.png" format="PNG"/> </imageobject> <textobject> <phrase>Equatorial/Galactic Coordinates</phrase> </textobject> </mediaobject> </screenshot> <para>This module converts from <link linkend="equatorial">Equatorial coordinates</link> to <link linkend="galactic">Galactic coordinates</link>, and vice versa. First, select which coordinates should be taken as input values in the <guilabel>Input Selection</guilabel> section. Then, fill in the corresponding coordinate values in either the <guilabel>Galactic coordinates</guilabel> or <guilabel>Equatorial coordinates</guilabel> section. Finally, press the <guibutton>Compute</guibutton> button, and the complementary coordinates will be filled in. </para> </sect2>