<sect1 id="tool-calculator">
<title>The Astrocalculator</title>
<indexterm><primary>Tools</primary>
<secondary>Astrocalculator</secondary>
</indexterm>

<para>The &kstars; Astrocalculator provides several modules that give you direct access to algorithms used by the program. The modules are organised by subject: <itemizedlist><title>Coordinate Converters</title>
<listitem><para><link linkend="calc-angdist">Angular Distance</link></para></listitem>
<listitem><para><link linkend="calc-apcoords">Apparent Coordinates</link></para></listitem>
<listitem><para><link linkend="calc-ecliptic">Ecliptic Coordinates</link></para></listitem>
<listitem><para><link linkend="calc-eqgal">Equatorial/Galactic Coordinates</link></para></listitem>
<listitem><para><link linkend="calc-horiz">Horizontal Coordinates</link></para></listitem>
<listitem><para><link linkend="calc-precess">Precession</link></para></listitem>
</itemizedlist>
<itemizedlist><title>Earth Coordinates</title>
<listitem><para><link linkend="calc-geodetic">Geodetic Coordinates</link></para></listitem>
</itemizedlist>
<itemizedlist><title>Solar System</title>
<listitem><para><link linkend="calc-planetcoords">Planets Coordinates</link></para></listitem>
</itemizedlist>
<itemizedlist><title>Time Calculators</title>
<listitem><para><link linkend="calc-dayduration">Day Duration</link></para></listitem>
<listitem><para><link linkend="calc-equinox">Equinoxes and Solstices</link></para></listitem>
<listitem><para><link linkend="calc-julian">Julian Day</link></para></listitem>
<listitem><para><link linkend="calc-sidereal">Sidereal Time</link></para></listitem>
</itemizedlist>
</para>
&calc-angdist; &calc-apcoords; &calc-ecliptic; &calc-eqgal; &calc-horiz; &calc-precess; &calc-geodetic; &calc-planetcoords; &calc-dayduration; &calc-equinox; &calc-julian; &calc-sidereal; </sect1>

