1 <sect1 id="tool-calculator">
2 <title>The Astrocalculator</title>
3 <indexterm><primary>Tools</primary>
4 <secondary>Astrocalculator</secondary>
8 The &kstars; Astrocalculator provides several modules that
9 give you direct access to algorithms used by the program.
10 The modules are organized by subject:
12 <itemizedlist><title>Coordinate Converters</title>
13 <listitem><para><link linkend="calc-angdist">Angular Distance</link></para></listitem>
14 <listitem><para><link linkend="calc-apcoords">Apparent Coordinates</link></para></listitem>
15 <listitem><para><link linkend="calc-ecliptic">Ecliptic Coordinates</link></para></listitem>
16 <listitem><para><link linkend="calc-eqgal">Equatorial/Galactic Coordinates</link></para></listitem>
17 <listitem><para><link linkend="calc-horiz">Horizontal Coordinates</link></para></listitem>
18 <listitem><para><link linkend="calc-precess">Precession</link></para></listitem>
20 <itemizedlist><title>Earth Coordinates</title>
21 <listitem><para><link linkend="calc-geodetic">Geodetic Coordinates</link></para></listitem>
23 <itemizedlist><title>Solar System</title>
24 <listitem><para><link linkend="calc-planetcoords">Planets Coordinates</link></para></listitem>
26 <itemizedlist><title>Time Calculators</title>
27 <listitem><para><link linkend="calc-dayduration">Day Duration</link></para></listitem>
28 <listitem><para><link linkend="calc-equinox">Equinoxes and Solstices</link></para></listitem>
29 <listitem><para><link linkend="calc-julian">Julian Day</link></para></listitem>
30 <listitem><para><link linkend="calc-sidereal">Sidereal Time</link></para></listitem>