doc/kstars/calc-horizontal.docbook

   1 <sect2 id="calc-horiz">
   2 <title>Horizontal Coordinates module</title>
   3 <indexterm><primary>Tools</primary>
   4 <secondary>Astrocalculator</secondary>
   5 <tertiary>Horizontal Coordinates module</tertiary>
   6 </indexterm>
   7
   8 <screenshot>
   9 <screeninfo>
  10 The Horizontal Coordinates calculator module
  11 </screeninfo>
  12 <mediaobject>
  13   <imageobject>
  14     <imagedata fileref="calc-horizontal.png" format="PNG"/>
  15   </imageobject>
  16   <textobject>
  17     <phrase>Horizontal Coordinates</phrase>
  18   </textobject>
  19 </mediaobject>
  20 </screenshot>
  21
  22 <para>
  23 This module converts from <link linkend="equatorial">Equatorial
  24 coordinates</link> to <link linkend="horizontal">Horizontal
  25 coordinates</link>.  First, select the date, time, and
  26 geographic coordinates for the calculation in the
  27 <guilabel>Input Data</guilabel> section.  Then, fill in the
  28 equatorial coordinates to be converted and their catalog epoch
  29 in the <guilabel>Equatorial Coordinates</guilabel> section.
  30 When you press the <guibutton>Compute</guibutton> button,
  31 the corresponding Horizontal coordinates will be presented in
  32 the <guilabel>Horizontal Coordinates</guilabel> section.
  33 </para>
  34 </sect2>
  35