CINXE.COM
Help
<!DOCTYPE html> <html lang="fr"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Help</title> <meta name="keywords" content="CDS, astronomy data center, centre de donnees astronomiques, astronomy, astronomie, Strasbourg" /> <meta name="cds:date" content="2025-03-16T05:04:14+0100" data-pagefind-meta="date[content]" data-pagefind-sort="desc" /><meta name="cds:section" content="help" data-pagefind-filter="section[content]" data-pagefind-meta="section[content]" /> <link rel="canonical" href="https://cds.unistra.fr/fr/help/" /> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:image" content="https://cds.unistra.fr/img/misc/cds.png"> <meta name="twitter:title" content="Help"> <meta name="twitter:description" content="Le Centre de Donn茅es astronomiques de Strasbourg (CDS) est un centre de donn茅es d茅di茅 脿 la collecte et distribution mondiale de donn茅es astronomiques et de leurs informations associ茅es. Il se situe 脿 l'Observatoire Astronomique de Strasbourg en France."> <link rel="alternate" hreflang="fr" href="https://cds.unistra.fr/fr/help/" /> <link rel="alternate" hreflang="en" href="https://cds.unistra.fr/help/" /> <link rel="alternate" hreflang="x-default" href="https://cds.unistra.fr/help/" /> <link rel="alternate" type="application/rss+xml" href="https://cds.unistra.fr/fr/help/index.xml" title="RSS for Help"> <!-- Include the CSS stylesheet for the CDS navbar and footer: --> <link href="/cds-navbar-resources/css/cdsnavbar.min.css" rel="stylesheet"> <!-- Include OpenSearch engines for CDS services: --> <link title="SIMBAD" rel="search" type="application/opensearchdescription+xml" href="/cds-navbar-resources/opensearch/simbad.xml"> <link title="VizieR" rel="search" type="application/opensearchdescription+xml" href="/cds-navbar-resources/opensearch/vizier.xml"> <link title="Aladin" rel="search" type="application/opensearchdescription+xml" href="/cds-navbar-resources/opensearch/aladin.xml"> <link title="XMatch" rel="search" type="application/opensearchdescription+xml" href="/cds-navbar-resources/opensearch/xmatch.xml"> <link rel="stylesheet" href="https://cds.unistra.fr/css/cds.min.css"> <link rel="preload" fetchpriority="high" as="image" href="https://cds.unistra.fr/img/title/fond_HD74319.webp" type="image/webp"> <link rel="apple-touch-icon" sizes="180x180" href="https://cds.unistra.fr/favicon/apple-touch-icon.png?v=2022"> <link rel="icon" type="image/png" sizes="32x32" href="https://cds.unistra.fr/favicon/favicon-32x32.png?v=2022"> <link rel="icon" type="image/png" sizes="16x16" href="https://cds.unistra.fr/favicon/favicon-16x16.png?v=2022"> <link rel="manifest" href="https://cds.unistra.fr/favicon/site.webmanifest?v=2022"> <link rel="mask-icon" href="https://cds.unistra.fr/favicon/safari-pinned-tab.svg?v=2022" color="#2d89ef"> <link rel="shortcut icon" href="https://cds.unistra.fr/favicon.ico?v=2022"> <meta name="apple-mobile-web-app-title" content="CDS Website"> <meta name="application-name" content="CDS Website"> <meta name="msapplication-TileColor" content="#2d89ef"> <meta name="theme-color" content="#ffffff"> </head> <body data-pagefind-ignore> <div class="void-wrapper for-menu" data-pagefind-ignore> <!-- -- ####################################################################### -- # # -- # CDS TOP NAVIGATION BAR # -- # # -- ####################################################################### --> <nav class="cds-menu for-cds" role="menubar" aria-label="CDS services navigation" data-pagefind-ignore> <!-- HEADER: CDS WEBSITE LINK --> <header><a href="https://cds.unistra.fr" role="menuitem" aria-label="CDS website"></a></header> <!-- MENU CONTENT --> <ul role="menu" aria-label="CDS services"> <!-- List of all services (collapsed on very small screens) --> <li class="is-collapsed-when-very-small" role="none"> <!-- Trigger for showing the menu on very small screens --> <span class="menu-trigger for-all-services" tabindex="0" onclick="void(0)" role="menuitem" aria-label="List CDS services and more" aria-haspopup="true" aria-expanded="false"><span>Services</span></span> <!-- CDS main services --> <ul role="menu" aria-label="CDS main services"> <li role="none"><a class="portal" href="http://cdsportal.u-strasbg.fr" role="menuitem" aria-label="CDS Portal"><span></span></a></li> <li role="none"><a class="simbad" href="http://simbad.cds.unistra.fr/simbad" role="menuitem" aria-label="Simbad"><span></span></a></li> <li role="none"><a class="vizier" href="https://vizier.cds.unistra.fr/viz-bin/VizieR" role="menuitem" aria-label="VizieR"><span></span></a></li> <li role="none"><a class="aladin" href="http://aladin.cds.unistra.fr/aladin.gml" role="menuitem" aria-label="Aladin"><span></span></a></li> <li role="none"><a class="xmatch" href="http://cdsxmatch.u-strasbg.fr" role="menuitem" aria-label="X-Match"><span></span></a></li> <!-- SUB-MENU: Other CDS services --> <li role="none"> <!-- Trigger for showing the sub-menu --> <a class="menu-trigger for-other-services" tabindex="0" onclick="void(0)" role="menuitem" aria-label="Other resources" aria-haspopup="true">Others</a> <!-- Sub-menu itself --> <ul role="menu" aria-label="Other resources"> <li role="none"><a href="https://cds.unistra.fr/cgi-bin/Sesame" role="menuitem" aria-label="Sesame name resolver">Sesame name resolver</a></li> <li role="none"><a href="https://cds.unistra.fr/cgi-bin/Dic-Simbad" role="menuitem" aria-label="Dictionary of nomenclature">Dictionary of nomenclature</a></li> <li role="separator" class="divider" aria-hidden="true"></li> <!-- Link: email CDS-Question--> <li role="none"><a href="mailto:cds-question@unistra.fr" tabindex="0" role="menuitem" aria-label="Contact us">Contact us</a></li> </ul> </li> </ul> </li> <!-- Link: CDS help resources --> <li role="none"><a class="help" href="https://cds.unistra.fr/help" role="menuitem" aria-label="Help resources"><span>Help</span></a></li> </ul> </nav> <div class="cdsPageTitle"><h1></h1></div> </div> <header> <input type="checkbox" id="mainMenuOpener"> <label for="mainMenuOpener"><span></span></label> <nav class="sitenavbar" aria-label="CDS Website navigation" data-pagefind-ignore> <ul> <li class="home-shortcut" title="Page principale"><a href="https://cds.unistra.fr/fr/"></a></li> <li class="parent"> <a href="https://cds.unistra.fr/fr/about">脌 propos</a> <ul> <li><a href="https://cds.unistra.fr/fr/about/cds">CDS</a></li> <li><a href="https://cds.unistra.fr/fr/about/cts">CoreTrustSeal</a></li> <li><a href="https://cds.unistra.fr/fr/about/partners">Partenaires</a></li> <li><a href="https://cds.unistra.fr/fr/about/projects">Projets</a></li> <li><a href="https://cds.unistra.fr/fr/about/staff">Personnel</a></li> <li><a href="https://cds.unistra.fr/fr/about/contact">Contact</a></li> </ul> </li> <li> <a href="https://cds.unistra.fr/fr/data-publication">Publication de donn茅es</a> </li> <li class="parent"> <a href="https://cds.unistra.fr/fr/data-access">Acc猫s aux donn茅es</a> <ul> <li><a href="https://cds.unistra.fr/fr/data-access/services">Services</a></li> <li><a href="https://cds.unistra.fr/fr/data-access/tools">Outils</a></li> </ul> </li> <li class="parent"> <a href="https://cds.unistra.fr/fr/news">Actualit茅s</a> <ul> <li><a href="https://cds.unistra.fr/fr/news">Actualit茅s</a></li> <li><a href="https://cds.unistra.fr/fr/blog">Blog</a></li> <li><a href="https://cds.unistra.fr/fr/events">脡v茅nements</a></li> </ul> </li> <li class="parent"> <a class="active" href="https://cds.unistra.fr/fr/help">Aide</a> <ul> <li><a href="https://cds.unistra.fr/fr/help/acknowledgement">Citation</a></li> <li><a href="https://cds.unistra.fr/fr/help/documentation">Documentation des services</a></li> <li><a href="https://cds.unistra.fr/fr/help/tutorials">Tutoriels</a></li> <li><a href="https://cds.unistra.fr/fr/help/faq">FAQ</a></li> <li><a href="https://cds.unistra.fr/fr/help/communication">Communication</a></li> <li><a class="internal" href="http://cloud-wiki.u-strasbg.fr/twiki/bin/view/">Wiki (interne)</a></li> </ul> </li> <li class="search-trigger" title="Rechercher dans les pages du CDS"></li> </ul> </nav> <div class="translations" role="menu" aria-label="Language selector" data-pagefind-ignore> <span class="active" tabindex="0" role="menuitem" aria-label="Current language isFran莽ais" aria-haspopup="true">Fran莽ais</span> <ul role="menu"> <li aria-hidden="true"><a href="https://cds.unistra.fr/help/" role="menuitem" aria-label="Switch toEnglish">English</a></li> </ul> </div> <h1 aria-label="Page title"> Help </h1> </header> <div class="search-container" data-pagefind-ignore> <div class="modal-background"></div> <div class="search-form"> <input type="text" placeholder="Mots 脿 chercher..." /> </div> <div class="search-result hidden"> <div class="message">D茅sol茅 ! Aucune page trouv茅e avec les mots <code class="terms"></code></div> <div class="filters"></div> <ul class="results"></ul> </div> </div> <div class="main-wrapper"> <main> <meta name="cds:title" content="Help" data-pagefind-meta="title[content]" /> <ul class="centered-column pages" data-pagefind-ignore> <li><a href="https://cds.unistra.fr/fr/help/tutorials/"> <div class="title">Tutorials </div> <div class="description">All tutorials written and published by the CDS.</div> </a></li> <li><a href="https://cds.unistra.fr/fr/help/acknowledgement/"> <div class="title">Citation </div> <div class="description">Comment citer les services du CDS ?</div> </a></li> <li><a href="https://cds.unistra.fr/fr/help/documentation/"> <div class="title">Documentation des services </div> <div class="description">Documentations des principaux services d'acc猫s aux donn茅es du CDS.</div> </a></li> <li><a href="https://cds.unistra.fr/fr/help/faq/"> <div class="title">FAQ </div> </a></li> <li><a href="https://cds.unistra.fr/fr/help/communication/"> <div class="title">Mat茅riels de communication </div> <div class="description">Logos, QR codes, d茅pliants, marques page, ...</div> </a></li> <li><a href="https://cds.unistra.fr/fr/help/tutorials-more/"> <div class="title">Tutoriels suppl茅mentaires </div> </a></li> </ul> </main> </div> <div class="void-wrapper for-footer" data-pagefind-ignore> <!-- -- ####################################################################### -- # # -- # CDS FOOTER # -- # # -- ####################################################################### --> <footer class="cds-footer for-cds" data-pagefind-ignore> <div class="cds"> <!-- CDS Logo and link --> <a class="cds logo" href="https://cds.unistra.fr" title="CDS - Centre de Donn茅es astronomiques de Strasbourg" target="_blank"></a> <!-- Social networks links --> <div class="socials"> <a class="email" title="Send an email to the CDS team." href="mailto:cds-question@unistra.fr?Subject=CDS"></a> <a class="rss" title="RSS Feed of the CDS news" href="https://cds.unistra.fr/news/rss.php" target="_blank" rel="noopener noreferrer"></a> <a class="facebook" title="CDS' Facebook page." href="https://www.facebook.com/CDSportal/" target="_blank" rel="noopener noreferrer"></a> <a class="youtube" title="CDS' Youtube channel." href="https://www.youtube.com/@CDSportal" target="_blank" rel="noopener noreferrer"></a> <a class="github" title="CDS' GitHub page." href="https://github.com/cds-astro" target="_blank" rel="noopener noreferrer"></a> </div> </div> <div class="service"> <div class="content"> <a class="logo affiliation cnrs" href="https://www.cnrs.fr/en" title="CNRS - Centre National de la Recherche Scientifique" target="_blank"></a><a class="logo affiliation unistra" href="https://www.unistra.fr/" title="Unistra - Universit茅 de Strasbourg" target="_blank"></a><a class="logo affiliation obas" href="https://astro.unistra.fr" title="Observatoire astronomique de Strasbourg" target="_blank"></a> </div> </div> <div class="legal-links"> <a href="https://cds.unistra.fr/about/contact/">Contact</a> - <a href="https://cds.unistra.fr/legals/">Legals</a> </div> </footer> </div> <script type="text/javascript" src="https://cds.unistra.fr/js/cds-general.min.js"></script> </body> </html>