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59 lines
2.2 KiB
59 lines
2.2 KiB
15 years ago
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<sect1 id="tool-whatsup">
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<title>What's Up Tonight? Tool</title>
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<indexterm><primary>Tools</primary>
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<secondary>What's Up Tonight? Tool</secondary>
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</indexterm>
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<screenshot>
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<screeninfo>
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The What's Up Tonight Tool
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</screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="wut.png" format="PNG"/>
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</imageobject>
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<textobject>
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<phrase>What's Up Tonight?</phrase>
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</textobject>
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</mediaobject>
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</screenshot>
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<para>
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The <quote>What's Up Tonight?</quote> (WUT) tool displays a list of
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objects that will be visible at night from any location, on any date.
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By default, the Date and Location are taken from the current settings
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in the main window, but you can change either value using the
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<guibutton>Change Date</guibutton> and <guibutton>Change
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Location</guibutton> buttons at the top of the WUT window.
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</para>
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<para>
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The WUT tool also displays a short almanac of data for the selected
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date: the rise and set times for the Sun and moon, the duration of
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the night, and the Moon's illumination fraction.
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</para>
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<para>
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Below the almanac is where the object information is displayed. The
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objects are organized into type categories. Select an object type
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in the box labeled <guilabel>Choose a Category</guilabel>, and all
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objects of that type which are above the horizon on the selected
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night will be displayed in the box labeled <guilabel>Matching
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Objects</guilabel>. For example, in the screenshot, the
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<guilabel>Planets</guilabel> category has been selected, and four
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planets which are up on the selected night are displayed (Mars,
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Neptune, Pluto, and Uranus). When an object in the list is selected,
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its rise, set and transit times are displayed in the lower-right
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panel. In addition, you can press the <guibutton>Object
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Details...</guibutton> button to open the <link
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linkend="tool-details">Object Details window</link> for that
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object.
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</para>
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<para>
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By default, the WUT will display objects which are above the horizon
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between sunset and midnight (i.e., <quote>in the evening</quote>).
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You can choose to show objects which are up between midnight and dawn
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(<quote>in the morning</quote>), or between dusk and dawn (<quote>any
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time tonight</quote>) using the combobox near the top of the window.
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</para>
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</sect1>
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