<term><menuchoice><shortcut> <keycombo action="simul">&Ctrl;<keycap>E</keycap></keycombo> </shortcut> <guimenu>Time</guimenu> <guimenuitem>Set Time to Now</guimenuitem> </menuchoice></term>
<listitem><para>Sync time to system clock</para></listitem>
<listitem><para>Toggle between the <link linkend="horizontal">Horizontal</link> and <link linkend="equatorial">Equatorial</link> <link linkend="ai-skycoords">Coordinate Systems</link></para></listitem>
<listitem><para>Opens the <guilabel>Telescope Wizard</guilabel>, which provides a step-by-step guide to help you connect to your telescope and control it with &kstars;.</para></listitem>
<para>Opens the <link linkend="tool-calculator">AstroCalculator</link> Tool, which provides full access to many of the mathematical functions used by &kstars;. </para>
<para>Opens the <link linkend="tool-aavso">AAVSO Light Curve Generator</link> Tool, which allows you to download a light curve for any variable star from the American Association of Variable Star Observers. </para>
<para>Opens the <link linkend="tool-altvstime">Altitude vs. Time</link> Tool, which can plot curves representing the altitude of any object as a function of time. This is useful for planning observing sessions. </para>
<para>Opens the <link linkend="tool-whatsup">What's Up Tonight</link> Tool, which presents a summary of the objects which are observable from your location on a given date. </para>
<para>Opens the <link linkend="tool-scriptbuilder">Script Builder</link> Tool, which provides a GUI interface for building &kstars; DCOP scripts. </para>
<para>Opens the <link linkend="tool-solarsys">Solar System Viewer</link>, which displays an overhead view of the solar system on the current simulation date. </para>
<para>Opens the <link linkend="tool-jmoons">Jupiter Moons Tool</link>, which displays the positions of Jupiter's four brightest moons as a function of time. </para>
<listitem><para>This submenu contains all of the defined colour schemes, including your custom schemes. Select any item to set that colour scheme. </para></listitem>
<listitem><para>This submenu lists the available field-of-view (FOV) Symbols. The FOV Symbol is drawn at the centre of the display. You may choose from the list of predefined symbols (No symbol, 7x35 Binoculars, One degree, or HST WFPC2), or you may define your own symbols (or modify existing symbols) using the <guimenuitem>Edit FOV symbols...</guimenuitem> item. </para></listitem>
<para>The <mousebutton>right</mousebutton> click popup menu is context-sensitive, meaning its content varies depending on what kind of object you click on. We list all possible popup menu items here, with the relevant object type [in brackets].</para>
<listitem><para>Identification and type: The top one to three lines are devoted to the name(s) of the object and its type. For stars, the Spectral Type is also shown here. </para></listitem>
</varlistentry>
<varlistentry>
<term>[All]</term>
<listitem><para>Rise, Transit and Set times for the object on the current simulation date are shown on the next three lines. </para></listitem>
</varlistentry>
<varlistentry>
<term>[All]</term>
<listitem><para><guimenuitem>Centre and Track</guimenuitem>: Centre the display on this location, and engage tracking. Equivalent to double-clicking. </para></listitem>
</varlistentry>
<varlistentry>
<term>[All]</term>
<listitem><para><guimenuitem>Angular Distance To...</guimenuitem>: Enter "angular distance mode". In this mode, a dotted line is drawn from the first target object to the current mouse position. When you invoke the popup menu of a second object, this item will read <guilabel>Compute Angular Distance</guilabel>. Selecting this item will display the angular distance between the two objects in the statusbar. You can press the <keycap>Esc</keycap> key to exit angular distance mode without measuring an angle. </para></listitem>
</varlistentry>
<varlistentry>
<term>[All]</term>
<listitem><para><guimenuitem>Details</guimenuitem>: Open the <link linkend="tool-details">Object Details window</link> for this object. </para></listitem>
</varlistentry>
<varlistentry>
<term>[All]</term>
<listitem><para><guimenuitem>Attach Label</guimenuitem>: Attach a permanent name label to the object. If the object already has a label attached, this item will read <guilabel>Remove Label</guilabel>. </para></listitem>
</varlistentry>
<varlistentry>
<term>[All]</term>
<listitem><para><guimenuitem>Show ... Image</guimenuitem>: download an image of the object from the internet, and display it in the Image Viewer tool. The "..." text is replaced by a short description of the image's source. An object may have multiple image links available in its popup menu. </para></listitem>
</varlistentry>
<varlistentry>
<term>[All]</term>
<listitem><para><guimenuitem>... Page</guimenuitem>: Display a webpage about the object in your default web browser. The "..." text is replaced by a short description of the page. An object may have multiple web links available in its popup menu. </para></listitem>
</varlistentry>
<varlistentry>
<term>[All Named Objects]</term>
<listitem><para>
<indexterm><primary>Objects in the Sky</primary>
<secondary>Internet Links</secondary>
<tertiary>Customising</tertiary></indexterm>
<guimenuitem>Add Link...</guimenuitem>: This allows you to add your own custom links to the popup menu of any object. It opens a small window in which you enter the &URL; of the link, and the text you want to appear in the popup menu. There is also a pair of radio buttons which allow you to specify whether the &URL; is an image or an <acronym>HTML</acronym> document, so &kstars; knows whether to launch the web browser or the image viewer. You can use this to add links to files on your local disk, so this feature could be used to attach observing logs or other custom information to objects in &kstars;. Your custom links are automatically loaded whenever &kstars; starts up, and they are stored in the folder <filename class="directory">~/.trinity/share/apps/kstars/</filename>, in files <filename>myimage_url.dat</filename> and <filename>myinfo_url.dat</filename>. If you build an extensive list of custom links, consider submitting them to us, we would like to include them in the next version of &kstars;! </para>
<listitem><para>Toggle between the <link linkend="horizontal">Horizontal</link> and <link linkend="equatorial">Equatorial</link> <link linkend="ai-skycoords">Coordinate Systems</link> </para></listitem></varlistentry>
<varlistentry>
<term><keycap>F1</keycap></term>
<listitem><para>Open the &kstars; Handbook</para></listitem>
Centre and track on the location or object nearest the mouse click. Double-clicking on an Info Box will <quote>shade</quote> it to show/hide extra information. </para></listitem>
<secondary>Invoking Popup Menu for</secondary></indexterm>
Open the <link linkend="popup-menu">popup menu</link> for the location or object nearest the mouse cursor. </para></listitem>
</varlistentry>
<varlistentry><term>Scrolling the mouse wheel</term>
<listitem><para>Zoom the display in or out. If you do not have a mouse wheel, you can hold the middle mouse button and drag vertically. </para></listitem>
<listitem><para>Pan the display, following the drag motion. </para></listitem></varlistentry>
<varlistentry><term>&Ctrl;+dragging the sky map</term>
<listitem><para>Define a rectangle in the map. When the mouse button is released, the display is zoomed in to match the field-of-view to the bounds of the rectangle. </para></listitem></varlistentry>
<varlistentry><term>Dragging an Info Box</term>
<listitem><para>The Info Box is repositioned in the map. Info Boxes will <quote>stick</quote> to window edges, so that they remain on the edge when the window is resized. </para></listitem></varlistentry>
