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<div class="section" id="object-coordinates-dialog">
<span id="index-0"></span><span id="id1"></span><h1>Object coordinates (dialog)<a class="headerlink" href="#object-coordinates-dialog" title="Permalink to this headline">¶</a></h1>
<p>The “Object coordinates” dialog is used to specify the celestial position of the observed
object. This information is necessary to compute the heliocentric correction and the air mass
coefficient.</p>
<div class="section" id="sources-of-coordinates">
<h2>Sources of coordinates<a class="headerlink" href="#sources-of-coordinates" title="Permalink to this headline">¶</a></h2>
<p>There are several possibilities how to enter the object celestial position:</p>
<ul class="simple">
<li>To enter equatorial coordinates manually to edit fields in the dialog.</li>
<li>To pick out an item from a table predefined positions. A user can add records to the table and edit them.</li>
<li>To search out the position in a catalog of variable stars. The GCVS, NSV, NSVS and BRKA
catalogs are supported. They are not included in the installation and must be installed and
configured separately.</li>
<li>To get the position from the reference frame, i. e. a source frame or a catalog file that
has been used for the matching.</li>
</ul>
</div>
<div class="section" id="specifying-the-position-manually">
<h2>Specifying the position manually<a class="headerlink" href="#specifying-the-position-manually" title="Permalink to this headline">¶</a></h2>
<div class="figure align-center">
<img alt="Object position (manual entry)" src="_images/objcoords_couts1.png" />
<p class="caption">Specifying the object position manually</p>
</div>
<p>Select the source of coordinates (1).</p>
<p>(2) Enter object designation here. Although this field is not required, it is recommended
to fill in a meaningful object identification.</p>
<p>Enter object right ascension to the text box (3) in hours. Use the hexagesimal format, separate
the fields by a space character.</p>
<p>Enter object declination to the text box (4) in degrees. Use the hexagesimal format, separate
the fields by a space character.</p>
<p>(5) Source and Remarks are optional fields. You can enter any information that you find useful.
There are no formatting rules for these fields.</p>
<p>Click on the “Add” button (6) to add an object into the table of predefined objects (7).</p>
<p>Click the “OK” button (8) to save the coordinates.</p>
</div>
<div class="section" id="using-the-table-of-predefined-position">
<h2>Using the table of predefined position<a class="headerlink" href="#using-the-table-of-predefined-position" title="Permalink to this headline">¶</a></h2>
<div class="figure align-center">
<img alt="Table of predefined objects' positions" src="_images/objcoords_couts2.png" />
<p class="caption">Getting the object coordinates from the table of predefined positions</p>
</div>
<p>Select the source of coordinates (10).</p>
<p>The table of predefined positions is displayed in the table (11).
Right-clicking a table opens a context menu.</p>
<p>Select an item in the table with a single left click to recall the data.
The data are shown in the text boxes above the table (12).</p>
<p>Click the “Add” button (13) to make a new item to the table with data
filled in the text boxes. Click the “Save” (14) button to update selected record.
Click the “Remove” button (15) to remove the selected record from the table.</p>
<p>Click the “OK” button (16) to confirm the dialog.</p>
</div>
<div class="section" id="searching-in-a-catalog-of-variable-stars">
<h2>Searching in a catalog of variable stars<a class="headerlink" href="#searching-in-a-catalog-of-variable-stars" title="Permalink to this headline">¶</a></h2>
<p>The catalog files are not included in the program’s installation package.
You have to download and install them separately.</p>
<div class="figure align-center">
<img alt="Catalogs of variable stars" src="_images/objcoords_couts3.png" />
<p class="caption">Searching the variable star catalogs</p>
</div>
<p>Select the source of coordinates (20).</p>
<p>Enter the variable star designation into the text box (21). The search is
not case sensitive.</p>
<p>Click the “Search” button (22) to start the search. The records that match
are displayed in the table below (23).</p>
<p>Select an item in the table with a single left click. Right-clicking a table
opens a context menu.</p>
<p>Click the “OK” button (24) to save the coordinates.</p>
</div>
<div class="section" id="using-position-from-the-reference-frame">
<h2>Using position from the reference frame<a class="headerlink" href="#using-position-from-the-reference-frame" title="Permalink to this headline">¶</a></h2>
<p>This option is available only when the reference frame includes the information
about the position of the object.</p>
<div class="figure align-center">
<img alt="Using the position from the reference frame" src="_images/objcoords_couts4.png" />
<p class="caption">Object coordinates from the reference frame</p>
</div>
<p>Select the source of coordinates (30).</p>
<p>(31) The equatorial coordinates of the object is displayed in the text boxes.</p>
<p>Click the “OK” button (32) to save the coordinates.</p>
<div class="admonition-see-also admonition seealso">
<p class="first admonition-title">See also</p>
<p class="last"><a class="reference internal" href="match_stars_dialog.html#match-stars-dialog"><em>Match stars (dialog)</em></a>, <a class="reference internal" href="make_catalog_file_dialog.html#make-catalog-file-dialog"><em>Make catalog file (dialog)</em></a></p>
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<h3><a href="index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Object coordinates (dialog)</a><ul>
<li><a class="reference internal" href="#sources-of-coordinates">Sources of coordinates</a></li>
<li><a class="reference internal" href="#specifying-the-position-manually">Specifying the position manually</a></li>
<li><a class="reference internal" href="#using-the-table-of-predefined-position">Using the table of predefined position</a></li>
<li><a class="reference internal" href="#searching-in-a-catalog-of-variable-stars">Searching in a catalog of variable stars</a></li>
<li><a class="reference internal" href="#using-position-from-the-reference-frame">Using position from the reference frame</a></li>
</ul>
</li>
</ul>
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