<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>