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<title>NGC 1818</title>
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<wx:section level="1" title="NGC 1818" id="wxsec1"><h1 class="pagetitle" id="wx1">NGC 1818</h1>

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<th style="background-color: #FFFF77;" colspan="2" id="wx7">
<p id="wx8"><b id="wx9">NGC 2808</b></p>
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<td colspan="2" align="center" id="wx11"><a href="/wit/Immagine:Ngc1818a.jpg" title="" wx:linktype="image" wx:pagename="Immagine:Ngc1818a.jpg" id="wx12"><img src="/wit/Immagine:Ngc1818a.jpg" alt="" width="280" id="wx13"/></a> </td>
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<p id="wx16">Scoperta</p>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx18"><b id="wx19">Scopritore</b> </th>
<td id="wx20">
<p id="wx21">James Dunlop</p>
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<tr id="wx22">
<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx23"><b id="wx24">Anno</b> </th>
<td id="wx25"><a href="/wit/1826" title="1826" wx:linktype="known" wx:pagename="1826" wx:page_id="5355" id="wx26">1826</a> </td>
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<th colspan="2" style="background-color: #FFFF77;" id="wx28">
<p id="wx29">Dati osservativi<br id="wx30"/>
<small id="wx31">(<a href="/wit/Epoca_%28astronomia%29" title="Epoca (astronomia)" wx:linktype="known" wx:pagename="Epoca_(astronomia)" wx:page_id="17183" id="wx32">Epoca</a>)</small></p>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx34"><b id="wx35"><a href="/wit/Costellazione" title="Costellazione" wx:linktype="known" wx:pagename="Costellazione" wx:page_id="9574" id="wx36">Costellazione</a></b> </th>
<td id="wx37"><a href="/wit/Dorado_%28costellazione%29" title="Dorado (costellazione)" wx:linktype="known" wx:pagename="Dorado_(costellazione)" wx:page_id="10851" id="wx38">Dorado</a> </td>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx40"><b id="wx41">Tipo di oggetto</b> </th>
<td id="wx42"><a href="/wit/Ammasso_globulare" title="Ammasso globulare" wx:linktype="known" wx:pagename="Ammasso_globulare" wx:page_id="8636" id="wx43">Ammasso globulare</a> </td>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx45"><b id="wx46">Classe</b> </th>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx49"><b id="wx50"><a href="/wit/Ascensione_retta" title="Ascensione retta" wx:linktype="known" wx:pagename="Ascensione_retta" wx:page_id="10973" id="wx51">Ascensione retta</a></b> </th>
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<p id="wx53">05<sup id="wx54">h</sup> 04,2<sup id="wx55">m</sup></p>
</td>
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<tr id="wx56">
<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx57"><b id="wx58"><a href="/wit/Declinazione_%28astronomia%29" title="Declinazione (astronomia)" wx:linktype="known" wx:pagename="Declinazione_(astronomia)" wx:page_id="10971" id="wx59">Declinazione</a></b> </th>
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<p id="wx61">−66° 26′</p>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx63"><b id="wx64">Distanza</b> </th>
<td id="wx65">
<p id="wx66">164.000 <a href="/wit/Anno-luce" title="Anno-luce" wx:linktype="known" wx:pagename="Anno-luce" wx:page_id="1094047" id="wx67">al</a></p>
</td>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx69"><b id="wx70"><a href="/wit/Magnitudine_apparente" title="Magnitudine apparente" wx:linktype="known" wx:pagename="Magnitudine_apparente" wx:page_id="2941" id="wx71">Magnitudine apparente</a> <small id="wx72">(V)</small></b> </th>
<td id="wx73">
<p id="wx74">9,7</p>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx76"><b id="wx77"><a href="/wit/Dimensione_apparente" title="Dimensione apparente" wx:linktype="known" wx:pagename="Dimensione_apparente" wx:page_id="503783" id="wx78">Dimensioni apparenti</a> <small id="wx79">(V)</small></b> </th>
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<p id="wx81">3'</p>
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<tr id="wx82">
<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx83"><b id="wx84"><a href="/wit/Dimensione_apparente" title="Dimensione apparente" wx:linktype="known" wx:pagename="Dimensione_apparente" wx:page_id="503783" id="wx85">Dimensioni apparenti</a> <small id="wx86">(V)</small></b> </th>
<td id="wx87">
<p id="wx88">3'</p>
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<tr id="wx89">
<th width="50%" style="text-align:left;background-color: #FFFF77;" colspan="2" id="wx90">
<p id="wx91">Caratteristiche fisiche</p>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx93"><b id="wx94">Raggio</b> </th>
<td id="wx95"/>
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<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx97"><b id="wx98">Età stimata</b> </th>
<td id="wx99">
<p id="wx100">40 milioni di anni</p>
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<tr id="wx101">
<th width="50%" style="text-align:left;background:#FFFFD0;" id="wx102"><b id="wx103">Caratteristiche notevoli</b> </th>
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<p id="wx105">Molto giovane</p>
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<th colspan="2" style="background-color: #FFFF77;" id="wx107"><b id="wx108">Altre designazioni</b> </th>
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<td colspan="2" style="text-align:center;" id="wx110">
<p id="wx111">ESO 85-SC40</p>
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<p id="wx112"><b id="wx113"><a href="/wit/New_General_Catalogue" title="New General Catalogue" wx:linktype="known" wx:pagename="New_General_Catalogue" wx:page_id="3086" id="wx114">NGC</a> 1818</b> è un <a href="/wit/Ammasso_globulare" title="Ammasso globulare" wx:linktype="known" wx:pagename="Ammasso_globulare" wx:page_id="8636" id="wx115">ammasso globulare</a> nella <a href="/wit/Costellazione" title="Costellazione" wx:linktype="known" wx:pagename="Costellazione" wx:page_id="9574" id="wx116">costellazione</a> australe del <a href="/wit/Dorado_%28costellazione%29" title="Dorado (costellazione)" wx:linktype="known" wx:pagename="Dorado_(costellazione)" wx:page_id="10851" id="wx117">Dorado</a>.</p>

<p id="wx118">È individuabile nei pressi della <a href="/wit/Grande_Nube_di_Magellano" title="Grande Nube di Magellano" wx:linktype="known" wx:pagename="Grande_Nube_di_Magellano" wx:page_id="2190" id="wx119">Grande Nube di Magellano</a>; si rivela solo in strumenti molto potenti e in notti limpide. Si tratta di uno degli ammassi globulari più giovani che si conoscano, con un'età stimata su appena 40 milioni di anni; la sua distanza, paragonabile a quella della Grande Nube, è stimata sui 164.000 <a href="/wit/Anni_luce" title="Anni luce" wx:linktype="known" wx:pagename="Anni_luce" wx:page_id="259292" id="wx120">anni luce</a>.</p>

<a id="Bibliografia" name="Bibliografia"/>
<wx:section level="2" title="Bibliografia" id="wxsec2"><h2 id="wx121">Bibliografia</h2>

<ul id="wx122">
<li id="wx123"><a href="http://www.ngcic.org/pubdb.htm" class="external text" wx:linktype="external" rel="nofollow" id="wx124">Catalogo NGC/IC online</a></li>

<li id="wx125">
<p id="wx126">Tirion, Rappaport, Lovi, Uranometria 2000.0, William-Bell inc. <a href="/wit/index.php?title=Speciale:Booksources&amp;isbn=094339614X" class="internal" id="wx127">ISBN 0-943396-14-X</a></p>
</li>
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<a id="Voci_correlate" name="Voci_correlate"/>
</wx:section><wx:section level="2" title="Voci correlate" id="wxsec3"><h2 id="wx128">Voci correlate</h2>

<ul id="wx129">
<li id="wx130"><a href="/wit/Oggetti_non_stellari_nella_costellazione_del_Tucano" title="Oggetti non stellari nella costellazione del Tucano" wx:linktype="known" wx:pagename="Oggetti_non_stellari_nella_costellazione_del_Tucano" wx:page_id="1792347" id="wx131">Oggetti non stellari nella costellazione del Tucano</a></li>
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</wx:section><wx:section level="2" title="Collegamenti esterni" id="wxsec4"><h2 id="wx132">Collegamenti esterni</h2>

<ul id="wx133">
<li id="wx134"><a href="http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+1818&amp;extend=no&amp;out_csys=Equatorial&amp;out_equinox=J2000.0&amp;obj_sort=RA+or+Longitude&amp;of=pre_text&amp;zv_breaker=30000.0&amp;list_limit=5&amp;img_stamp=YES" class="external text" wx:linktype="external" rel="nofollow" id="wx135">NGC 1818</a>
<p id="wx136">(<a href="/wit/NASA" title="NASA" wx:linktype="known" wx:pagename="NASA" wx:page_id="11228" id="wx137">NASA</a> Extragalactic Database)</p>
</li>

<li id="wx138"><a href="http://www.seds.org/~spider/ngc/ngc.cgi?1818" class="external text" wx:linktype="external" rel="nofollow" id="wx139">Catalogo SEDS</a></li>
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<a href="/wit/index.php?title=Speciale:Categories&amp;article=NGC_1818" title="Speciale:Categories" wx:linktype="known" wx:pagename="Speciale:Categories" id="wx140">Categorie</a>: <span dir="ltr" id="wx141"><a href="/wit/Categoria:Ammassi_globulari" title="Categoria:Ammassi globulari" wx:linktype="known" wx:pagename="Categoria:Ammassi_globulari" wx:page_id="53977" id="wx142">Ammassi globulari</a></span> | <span dir="ltr" id="wx143"><a href="/wit/Categoria:Oggetti_del_catalogo_NGC" title="Categoria:Oggetti del catalogo NGC" wx:linktype="known" wx:pagename="Categoria:Oggetti_del_catalogo_NGC" wx:page_id="1216416" id="wx144">Oggetti del catalogo NGC</a></span> | <span dir="ltr" id="wx145"><a href="/wit/Categoria:Grande_Nube_di_Magellano" title="Categoria:Grande Nube di Magellano" wx:linktype="known" wx:pagename="Categoria:Grande_Nube_di_Magellano" wx:page_id="1533344" id="wx146">Grande Nube di Magellano</a></span></div>
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Altre lingue: <a href="http://de.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="de:NGC_1818" id="wx147">Deutsch</a> | <a href="http://en.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="en:NGC_1818" id="wx148">English</a> | <a href="http://eo.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="eo:NGC_1818" id="wx149">Esperanto</a> | <a href="http://es.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="es:NGC_1818" id="wx150">Español</a> | <a href="http://lb.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="lb:NGC_1818" id="wx151">Lëtzebuergesch</a> | <a href="http://pl.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="pl:NGC_1818" id="wx152">Polski</a> | <a href="http://ru.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="ru:NGC_1818" id="wx153">Русский</a> | <a href="http://sk.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="sk:NGC_1818" id="wx154">Slovenčina</a> | <a href="http://sv.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="sv:NGC_1818" id="wx155">Svenska</a> | <a href="http://uk.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="uk:NGC_1818" id="wx156">Українська</a> | <a href="http://zh.wikipedia.org/wiki/NGC_1818" class="external" wx:linktype="interwiki" wx:pagename="zh:NGC_1818" id="wx157">中文</a></div>
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<a href="/wit/Immagine:Ngc1818a.jpg" title="" wx:linktype="image" wx:pagename="Immagine:Ngc1818a.jpg" id="wx158"><img src="/wit/Immagine:Ngc1818a.jpg" alt="" width="280" id="wx159"/></a>
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<p id="wx160">NGC 2808</p>
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<p id="wx161">James Dunlop</p>
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<a href="/wit/1826" title="1826" wx:linktype="known" wx:pagename="1826" wx:page_id="5355" id="wx162">1826</a>
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<a href="/wit/Dorado_%28costellazione%29" title="Dorado (costellazione)" wx:linktype="known" wx:pagename="Dorado_(costellazione)" wx:page_id="10851" id="wx163">Dorado</a>
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<a href="/wit/Ammasso_globulare" title="Ammasso globulare" wx:linktype="known" wx:pagename="Ammasso_globulare" wx:page_id="8636" id="wx164">Ammasso globulare</a>
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<p id="wx165">05<sup id="wx166">h</sup> 04,2<sup id="wx167">m</sup></p>
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<p id="wx168">−66° 26′</p>
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<p id="wx169">164.000 <a href="/wit/Anno-luce" title="Anno-luce" wx:linktype="known" wx:pagename="Anno-luce" wx:page_id="1094047" id="wx170">al</a></p>
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<p id="wx171">9,7</p>
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<p id="wx173">40 milioni di anni</p>
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<p id="wx174">Molto giovane</p>
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<p id="wx175">ESO 85-SC40</p>
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