kstars/doc/calc-horizontal.docbook

0001 <sect2 id="calc-horiz">
0002 <title>Horizontal Coordinates module</title>
0003 <indexterm><primary>Tools</primary>
0004 <secondary>Astrocalculator</secondary>
0005 <tertiary>Horizontal Coordinates module</tertiary>
0006 </indexterm>
0007
0008 <screenshot>
0009 <screeninfo>
0010 The Horizontal Coordinates calculator module
0011 </screeninfo>
0012 <mediaobject>
0013   <imageobject>
0014     <imagedata fileref="calc-horizontal.png" format="PNG"/>
0015   </imageobject>
0016   <textobject>
0017     <phrase>Horizontal Coordinates</phrase>
0018   </textobject>
0019 </mediaobject>
0020 </screenshot>
0021
0022 <para>
0023 This module converts from <link linkend="equatorial">Equatorial
0024 coordinates</link> to <link linkend="horizontal">Horizontal
0025 coordinates</link>.  First, select the date, time, and
0026 geographic coordinates for the calculation.  Then, fill in the
0027 equatorial coordinates to be converted or use the <guilabel>Find Object</guilabel> dialog
0028 in the <guilabel>Equatorial Coordinates (J2000)</guilabel> section.
0029 The corresponding Horizontal coordinates will be presented in
0030 the <guilabel>Horizontal Coordinates</guilabel> section.
0031 </para>
0032 </sect2>
0033