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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Alvan Graham Clark</span></h1>
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<p><b>Alvan Graham Clark</b> (* <a href="10._Juli" title="10. Juli">10. Juli</a> <a href="1832" title="1832">1832</a> in <a href="Fall_River_(Massachusetts)" title="Fall River (Massachusetts)">Fall River</a>, <a href="Massachusetts" title="Massachusetts">Massachusetts</a>; † <a href="9._Juni" title="9. Juni">9. Juni</a> <a href="1897" title="1897">1897</a> in <a href="Cambridge_(Massachusetts)" title="Cambridge (Massachusetts)">Cambridge</a>, Massachusetts) war ein <a href="Vereinigte_Staaten" title="Vereinigte Staaten">US-amerikanischer</a> <a href="Astronom" title="Astronom">Astronom</a> und Teleskopbauer.
</p><p>Er war der Sohn des Teleskopbauers <a href="Alvan_Clark_(Astronom)" title="Alvan Clark (Astronom)">Alvan Clark</a>. Am 31. Januar 1862 entdeckte er <a href="Sirius_B_(Stern)" class="mw-redirect" title="Sirius B (Stern)">Sirius B</a>, den Begleiter des <a href="Sirius" title="Sirius">Sirius</a>. Dies war der erste entdeckte <a href="Wei%C3%9Fer_Zwerg" title="Weißer Zwerg">Weiße Zwerg</a>.
</p><p>1881 wurde Clark zum Mitglied der <a href="American_Academy_of_Arts_and_Sciences" title="American Academy of Arts and Sciences">American Academy of Arts and Sciences</a> in Cambridge, Massachusetts gewählt.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p><p>Der <a href="Mondkrater" title="Mondkrater">Mondkrater</a> Clark ist nach ihm und seinem Vater benannt.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
<ul><li>O. C. Wendell, G. E. Hale: <a rel="nofollow" class="external text" href="https://articles.adsabs.harvard.edu/full/1897ApJ.....6..136W"><i>Alvan Graham Clark.</i></a> In: <i><a href="Astrophysical_Journal" class="mw-redirect" title="Astrophysical Journal">Astrophysical Journal</a></i>, vol. 6 (1897), S. 136–138. (Nachrufe, englisch)</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
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<li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.amacad.org/multimedia/pdfs/publications/bookofmembers/electionIndex1850-1899.pdf"><i>Members of the American Academy. Listed by election year, 1850–1899.</i></a> (PDF, 50 kB) bei der <a href="American_Academy_of_Arts_and_Sciences" title="American Academy of Arts and Sciences">American Academy of Arts and Sciences</a> (amacad.org).</span>
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<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://planetarynames.wr.usgs.gov/Feature/1232">Clark (Mondkrater)</a> im <i>Gazetteer of Planetary Nomenclature</i> der <a href="Internationale_Astronomische_Union" title="Internationale Astronomische Union">IAU</a> (WGPSN) / <a href="United_States_Geological_Survey" title="United States Geological Survey">USGS</a></span>
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Normdaten (Person): <a href="Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a>: <span class="-print"><a rel="nofollow" class="external text" href="https://d-nb.info/gnd/116525363">116525363</a></span> | <a href="Virtual_International_Authority_File" title="Virtual International Authority File">VIAF</a>: <span class="-print"><a rel="nofollow" class="external text" href="https://viaf.org/viaf/52443910/">52443910</a></span> | </div>
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