CINXE.COM

MUSE | ESO

<!DOCTYPE html> <html lang="en"> <head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb#"><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/","20210127071201","https://web.archive.org/","web","/_static/", "1611731521"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" /> <!-- End Wayback Rewrite JS Include --> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <base target="_top"/> <meta name="robots" content="index,follow"/> <meta name="author" content="information@eso.org"/> <meta name="description" content="ESO, European Organisation for Astronomical Research in the Southern Hemisphere"/> <meta name="keywords" content="ESO, eso.org, Astronomy, Astrophysics, Astronomie, Suedsternwarte, telescopes, detectors, comets, planets, stars, galaxies, nebulae, universe, NTT, VLT, VLTI, ALMA, ELT, La Silla, Paranal, Garching, Chile"/> <link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="x-default"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/australia/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="en-au"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/unitedkingdom/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="en-gb"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/ireland/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="en-ie"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/usa/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="en-us"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/albania/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="sq"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/czechrepublic/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="cs"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/denmark/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="da"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/netherlands/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="nl"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/belgium-nl/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="nl-be"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/finland/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="fi"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/france/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="fr"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/belgium-fr/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="fr-be"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/switzerland-fr/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="fr-ch"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/germany/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="de"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/austria/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="de-at"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/belgium-de/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="de-be"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/switzerland-de/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="de-ch"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/greece/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="el"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/hungary/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="hu"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/iceland/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="is"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/italy/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="it"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/switzerland-it/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="it-ch"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/norway/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="nb"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/poland/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="pl"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/brazil/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="pt-br"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/portugal/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="pt"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/russia/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="ru"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/spain/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="es"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/chile/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="es-cl"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/serbia/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="sr-latn"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/sweden/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="sv"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/turkey/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="tr"/><link rel="alternate" href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/ukraine/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" hreflang="uk"/> <link rel="shortcut icon" href="https://web.archive.org/web/20210127071201im_/https://www.eso.org/public/archives/favicon.ico"/> <title>MUSE | ESO</title> <link href="/web/20210127071201cs_/https://www.eso.org/public/archives/djp/css/main.309790640f56.css" rel="stylesheet" type="text/css"/> <link href="https://web.archive.org/web/20210127071201/http://feeds.feedburner.com/EsoTopNews" rel="alternate" type="application/rss+xml" title="ESO Top News"/> <link href="https://web.archive.org/web/20210127071201/http://feeds.feedburner.com/EsoAnnouncements" rel="alternate" type="application/rss+xml" title="ESO Announcements"/> <link href="https://web.archive.org/web/20210127071201/http://feeds.feedburner.com/ESOcast" rel="alternate" type="application/rss+xml" title="ESOCast"/> <link href="https://web.archive.org/web/20210127071201/https://recruitment.eso.org/jobs.rss" rel="alternate" type="application/rss+xml" title="Jobs@ESO"/> <link href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/blog/feed/" rel="alternate" type="application/rss+xml" title="ESOblog"/> <!--[if lte IE 9]> <script type="text/javascript" src="/public/archives/djp/js/ie8compat.979c5ee2de33.js" charset="utf-8"></script> <script src="//oss.maxcdn.com/respond/1.4.2/respond.min.js"></SCRIpt> <script src="//oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script> <![endif]--> <meta name="twitter:card" content="summary"/> <meta name="twitter:site" content="@ESO"/> <meta name="twitter:creator" content="@ESO"/> <!-- Matomo --> <script type="text/javascript"> var _paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function() { var u="/mtmo/"; _paq.push(['setTrackerUrl', u+'matomo.php']); _paq.push(['setSiteId', '1']); var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); })(); </script> <!-- End Matomo Code --> <meta property="og:title" content="MUSE"/> <meta property="og:description" content="MUSE, an instrument mounted on the Very Large Telescope, is an integral field spectrograph, that allows to observe the entirety of an astronomical object in one go."/> <meta name="description" content="MUSE, an instrument mounted on the Very Large Telescope, is an integral field spectrograph, that allows to observe the entirety of an astronomical object in one go."/> </head> <body> <input type="hidden" name="csrfmiddlewaretoken" value="BIS5MICGPMYAwID6RSVUSgyxs2PSNzZ63HEolvgyCvGskAeWXWUzY7HOqbjEVJmZ"/> <div id="privacy-notice" style="display: none"> <p> By continuing to use this website, you are giving consent to our use of cookies.<br> For more information on how ESO uses data and how you can disable cookies, please view <a href="/web/20210127071201/https://www.eso.org/public/about-eso/privacy/"> our privacy policy</a>. </p> <button type="button" class="btn btn-primary" onclick="accept_privacy_notice()"> Accept </button> <script> // Display the privacy cookie if the cookie is not set if (!has_privacy_cookie()) { document.getElementById('privacy-notice').style.display = 'block' } function has_privacy_cookie() { return document.cookie.split(';').filter(function(item) { return item.indexOf('privacy_notice_accepted=True') >= 0 }).length > 0 } function accept_privacy_notice() { let data = { LANGUAGE_CODE: 'en' } let csrftoken = getCookie('csrftoken'); let headers = new Headers(); headers.append('Content-Type', 'application/json; charset=utf-8'); headers.append('X-CSRFToken', csrftoken); fetch('/public/accept-privacy-notice/', { method: 'post', headers: headers, credentials: 'include', body: JSON.stringify(data) }).then( document.getElementById('privacy-notice').style.display = 'none' ) } function getCookie(name) { var cookieValue = null; if (document.cookie && document.cookie !== '') { var cookies = document.cookie.split(';'); for (var i = 0; i < cookies.length; i++) { var cookie = jQuery.trim(cookies[i]); // Does this cookie string begin with the name we want? if (cookie.substring(0, name.length + 1) == (name + '=')) { cookieValue = decodeURIComponent(cookie.substring(name.length + 1)); break; } } } return cookieValue; } </script> </div> <nav class="navbar-general-wrapper" role="navigation"> <div class="navbar-general"> <div class="minilogo"> <a href="/web/20210127071201/https://www.eso.org/public/"> <div class="sprites-esologo-23-30" title="European Organisation for Astronomical Research in the Southern Hemisphere"></div> </a> </div> <div id="select-language"> <div class="flags"> <div title="Austria" class="sprites-flag_at"></div> <div title="Belgium" class="sprites-flag_be"></div> <div title="Czech Republic" class="sprites-flag_cz"></div> <div title="Denmark" class="sprites-flag_da"></div> <div title="Finland" class="sprites-flag_fi"></div> <div title="France" class="sprites-flag_fr"></div> <div title="Germany" class="sprites-flag_de"></div> <div title="Ireland" class="sprites-flag_ie"></div> <div title="Italy" class="sprites-flag_it"></div> <div title="Netherlands" class="sprites-flag_nl"></div> <div title="Poland" class="sprites-flag_pl"></div> <div title="Portugal" class="sprites-flag_pt"></div> <div title="Spain" class="sprites-flag_es"></div> <div title="Sweden" class="sprites-flag_sv"></div> <div title="Switzerland" class="sprites-flag_ch"></div> <div title="UK" class="sprites-flag_gb"></div> <div style="margin-left: 8px" title="Chile" class="sprites-flag_cl"></div> </div> <div class="languages"> <div class="language-button"> <span class="language-text">Select Language (en)</span> <div class="language-flag"><div title="en" class="flag sprites-flag_gb">&nbsp;</div><span> (en)</span></div> <span class="caret"></span> </div> <ul class="languages-dropdown" role="menu"> <li class="language selected"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="International English" class="flag sprites-flag_en">&nbsp;</div>International English</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/denmark/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Dansk" class="flag sprites-flag_da">&nbsp;</div>Dansk</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/germany/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Deutsch" class="flag sprites-flag_de">&nbsp;</div>Deutsch</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/belgium-de/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Deutsch (Belgien)" class="flag sprites-flag_be">&nbsp;</div>Deutsch (Belgien)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/switzerland-de/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Deutsch (Schweiz)" class="flag sprites-flag_ch">&nbsp;</div>Deutsch (Schweiz)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/austria/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Deutsch (Österreich)" class="flag sprites-flag_at">&nbsp;</div>Deutsch (Österreich)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/australia/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="English (Australia)" class="flag sprites-flag_au">&nbsp;</div>English (Australia)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/ireland/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="English (Ireland)" class="flag sprites-flag_ie">&nbsp;</div>English (Ireland)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/unitedkingdom/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="English (UK)" class="flag sprites-flag_gb">&nbsp;</div>English (UK)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/usa/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="English (USA)" class="flag sprites-flag_us">&nbsp;</div>English (USA)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/spain/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Español" class="flag sprites-flag_es">&nbsp;</div>Español</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/chile/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Español (Chile)" class="flag sprites-flag_cl">&nbsp;</div>Español (Chile)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/france/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Français" class="flag sprites-flag_fr">&nbsp;</div>Français</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/belgium-fr/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Français (Belgique)" class="flag sprites-flag_be">&nbsp;</div>Français (Belgique)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/switzerland-fr/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Français (Suisse)" class="flag sprites-flag_ch">&nbsp;</div>Français (Suisse)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/italy/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Italiano" class="flag sprites-flag_it">&nbsp;</div>Italiano</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/switzerland-it/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Italiano (Svizzera)" class="flag sprites-flag_ch">&nbsp;</div>Italiano (Svizzera)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/hungary/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Magyarország" class="flag sprites-flag_hu">&nbsp;</div>Magyarország</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/netherlands/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Nederlands" class="flag sprites-flag_nl">&nbsp;</div>Nederlands</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/belgium-nl/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Nederlands (België)" class="flag sprites-flag_be">&nbsp;</div>Nederlands (België)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/norway/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Norsk" class="flag sprites-flag_nb">&nbsp;</div>Norsk</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/poland/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Polski" class="flag sprites-flag_pl">&nbsp;</div>Polski</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/portugal/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Português" class="flag sprites-flag_pt">&nbsp;</div>Português</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/brazil/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Português (Brasil)" class="flag sprites-flag_br">&nbsp;</div>Português (Brasil)</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/albania/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Shqip" class="flag sprites-flag_sq">&nbsp;</div>Shqip</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/serbia/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Srpski" class="flag sprites-flag_sr-latn">&nbsp;</div>Srpski</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/finland/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Suomi" class="flag sprites-flag_fi">&nbsp;</div>Suomi</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/sweden/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Svenska" class="flag sprites-flag_sv">&nbsp;</div>Svenska</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/turkey/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Türkçe" class="flag sprites-flag_tr">&nbsp;</div>Türkçe</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/iceland/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Íslenska" class="flag sprites-flag_is">&nbsp;</div>Íslenska</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/czechrepublic/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Česky" class="flag sprites-flag_cs">&nbsp;</div>Česky</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/russia/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="Русский" class="flag sprites-flag_ru">&nbsp;</div>Русский</a></li> <li class="language"><a role="menuitem" href="/web/20210127071201/https://www.eso.org/public/ukraine/teles-instr/paranal-observatory/vlt/vlt-instr/muse/?lang"><div title="українська" class="flag sprites-flag_uk">&nbsp;</div>українська</a></li> </ul> </div> </div> <div class="sections"> <a href="https://web.archive.org/web/20210127071201/https://www.eso.org/sci.html">Science</a> <a href="/web/20210127071201/https://www.eso.org/UserPortal/">User Portal</a> </div> <div class="searchbox"> <button type="button" class="btn btn-default" id="searchbox-button"> <span class="fa fa-search"></span> </button> <div id="searchbox-dropdown"> <form action="/web/20210127071201/https://www.eso.org/public/search/" method="get" class="form-inline" role="search"> <div class="form-group"> <div class="input-group"> <input type="text" value="" placeholder="Search..." name="q" class="form-control"> <span class="input-group-btn"> <button class="btn btn-default" type="submit"><span class="fa fa-search"></span></button> </span> </div> <!-- </span> --> <!-- </div> --> </div> </form> </div> </div> <div class="links"> <a href="/web/20210127071201/https://www.eso.org/public/outreach/newsletters/esonews/">Subscribe</a> <a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/">Contact</a> <a href="/web/20210127071201/https://www.eso.org/public/sitemap/">Site Map</a> </div> </div> </nav> <nav class="main-menu-wrapper" role="navigation"> <div class="main-menu"> <div class="mobile-menu clearfix"> <button class="menu-trigger"><span class="fa fa-navicon"></span> Open Menu</button> </div> <ul class="level0 mainmenu-aim"> <li><a href="/web/20210127071201/https://www.eso.org/public/about-eso/">About<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-2" class="submenu-aim"> <li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/esoglance/"> ESO, the European Southern Observatory </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/organisation/"> Organisation </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/"> Director General <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-5" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/previous-dg/"> List of Directors General <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-6" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/xbarcons/"> Prof. Xavier Barcons </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/tdezeeuw/"> Prof. T. de Zeeuw </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/ccesarsk/"> Dr. C. Cesarsky </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/rgiacconi/"> Prof. R. Giacconi </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/hvanderlaan/"> Prof. H. van der Laan </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/lwoltjer/"> Prof. L. Woltjer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/ablaauw/"> Prof. A. Blaauw </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dg-office/otto-heckmann/"> Prof. O. Heckmann </a></li></ul></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/committees.html"> ESO's Governing Bodies </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/"> Member States <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-16" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/austrianinvolvement/"> Austria </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/belgianinvolvement/"> Belgium </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/czechinvolvement/"> Czech Republic </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/danishinvolvement/"> Denmark </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/finnishinvolvement/"> Finland </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/frenchinvolvement/"> France </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/germaninvolvement/"> Germany </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/irishinvolvement/"> Ireland </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/italianinvolvement/"> Italy </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/dutchinvolvement/"> Netherlands </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/polishinvolvement/"> Poland </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/portugueseinvolvement/"> Portugal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/spanishinvolvement/"> Spain </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/swedishinvolvement/"> Sweden </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/swissinvolvement/"> Switzerland </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/memberstates/britishinvolvement/"> United Kingdom </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/"> Travel and Contacts <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-33" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/garching/"> Travel to ESO Headquarters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/vitacura/"> Travel to Vitacura Office </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/guesthouse/"> Travel to Guesthouse </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/lasilla/"> Travel to La Silla </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/laserena/"> Travel to La Serena </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/paranal/"> Travel to Paranal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/antofagasta/"> Travel to Antofagasta </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/apexsequitor/"> Travel to APEX/Sequitor </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/chajnantor/"> Travel to Chajnantor </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/travel/elt/"> Travel to ELT Armazones </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/about-eso/visitors/"> Visits to ESO Sites <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-44" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/visitors/paranal/"> Weekend visits to Paranal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/visitors/lasilla/"> Weekend Visits to La Silla </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/visitors/alma/"> Public Visits to the ALMA OSF </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/pressmedia/mediavisits/"> Media Visits </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/architecture/"> Architecture at ESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/collaborations/"> Collaborations with ESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/acronyms/"> ESO Acronyms </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/timeline/"> Timeline </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/green/"> Green ESO </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/about-eso/faq/"> Frequently Asked Questions <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-54" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/faq/faq-eso/"> ESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/faq/faq-vlt-paranal/"> VLT/Paranal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/faq/faq-apex-alma/"> APEX/ALMA </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/faq/faq-survey-telescopes/"> Survey Telescopes </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/faq/faq-elt/"> ELT </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/faq/privileges_and_immunities/"> Privileges and Immunities </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/faq/faq-eso-australia/"> ESO &amp; Australia </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/eso-and-chile/"> ESO &amp; Chile </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/dark-skies-preservation/"> Dark skies preservation </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/about-eso/privacy/"> Terms and Conditions </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/images/">Images<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-65" class="submenu-aim"> <li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/search/"> Advanced Search </a></li><li class="submenu"><a class="no-link children" href="#"> Categories <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-67" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/360pano/ "> 360 Panorama </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/alma/"> ALMA </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/apex/"> APEX </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/chile/"> Chile </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/cosmology/"> Cosmology </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/elt/"> ELT </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/eso-supernova/"> ESO Supernova </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/fulldome/"> Fulldome </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/galaxies/"> Galaxies </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/galaxyclusters/"> Galaxy Clusters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/illustrations/"> Illustrations </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/lasilla/"> La Silla </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/nebulae/"> Nebulae </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/paranal/"> Paranal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/peopleandevents/"> People and Events </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/premises/"> Premises </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/blackholes/"> Quasars and Black Holes </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/solarsystem/"> Solar System </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/starclusters/"> Star Clusters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/stars/"> Stars </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/category/surveytelescopes/"> Survey Telescopes </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/comparisons/"> Image Comparisons </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/imageformats/"> Image Formats </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/images/potw/"> Picture of the Week <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-92" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2021/"> 2021 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2020/"> 2020 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2019/"> 2019 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2018/"> 2018 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2017/"> 2017 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2016/"> 2016 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2015/"> 2015 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2014/"> 2014 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2013/"> 2013 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2012/"> 2012 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2011/"> 2011 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2010/"> 2010 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2009/"> 2009 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2008/"> 2008 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/potw/archive/year/2007/"> 2007 </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/images/archive/top100/"> Top 100 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-108" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/archives/images/top100-large.zip"> Large JPG Zip File (1.9 GB) </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/archives/images/top100-original.zip"> Original TIF Zip File (32.9 GB) </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/copyright/"> Usage of ESO Images and Videos </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/wallpapers/"> Wallpapers </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/images/archive/zoomable/"> Zoomable </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/videos/">Videos<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-114" class="submenu-aim"> <li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/search/"> Advanced Search </a></li><li class="submenu"><a class="no-link children" href="#"> Categories <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-116" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/abouteso/"> About ESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/alma/"> ALMA </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/apex/"> APEX </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/compilations/"> Compilations </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/cosmology/"> Cosmology </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/elt/"> ELT </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/esocast/"> ESOcast </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/events/"> Events </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/featuremovies/"> Feature Movies </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/fulldome/"> Fulldome </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/galaxies/"> Galaxies </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/galaxyclusters/"> Galaxy Clusters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/lasilla/"> La Silla </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/nebulae/"> Nebulae </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/paranal/"> Paranal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/premises/"> Premises </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/blackholes/"> Quasars and Black Holes </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/solarsystem/"> Solar System </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/starclusters/"> Star Clusters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/stars/"> Stars </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/category/vnr/"> Video News Releases </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/copyright/"> Usage of ESO Videos and Images </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/videoformats/"> Video Formats </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/news/">News<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-141" class="submenu-aim"> <li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/news/"> Press Releases <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-142" class="submenu-aim sublevel"><li class="submenu"><a class="no-link children" href="#"> 2021-2030 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-143" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2021/"> 2021 </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> 2011–2020 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-145" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2020/"> 2020 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2019/"> 2019 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2018/"> 2018 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2017/"> 2017 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2016/"> 2016 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2015/"> 2015 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2014/"> 2014 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2013/"> 2013 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2012/"> 2012 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2011/"> 2011 </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> 2001–2010 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-156" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2010/"> 2010 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2009/"> 2009 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2008/"> 2008 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2007/"> 2007 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2006/"> 2006 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2005/"> 2005 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2004/"> 2004 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2003/"> 2003 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2002/"> 2002 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2001/"> 2001 </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> 1991–2000 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-167" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/2000/"> 2000 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1999/"> 1999 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1998/"> 1998 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1997/"> 1997 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1996/"> 1996 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1995/"> 1995 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1994/"> 1994 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1993/"> 1993 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1992/"> 1992 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1991/"> 1991 </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> 1985–1990 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-178" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1990/"> 1990 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1989/"> 1989 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1988/"> 1988 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1987/"> 1987 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1986/"> 1986 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/archive/year/1985/"> 1985 </a></li></ul></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/announcements/"> Announcements <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-185" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2021/"> 2021 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2020/"> 2020 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2019/"> 2019 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2018/"> 2018 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2017/"> 2017 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2016/"> 2016 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2015/"> 2015 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2014/"> 2014 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2013/"> 2013 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2012/"> 2012 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2011/"> 2011 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2010/"> 2010 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/archive/year/2009/"> 2009 </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/news/starsateso/"> Stars@ESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/webupdates/"> New on eso.org </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/outreach/pressmedia/"> Press Room <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-201" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/broadcast/"> Broadcast Services </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/pressmedia/mediavisits/"> Media Visits </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/copyright/"> Copyright Notice </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/newsletters/"> ESO Newsletters <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-205" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/newsletters/esonews/"> ESO News </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/newsletters/outreach/"> ESO Outreach Community Newsletter </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/sci/publications/newsletter/"> ESO Science Newsletter </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/newsletters/#2"> ESO Media Newsletter </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/presscoverage/"> Press Coverage </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/shop/">ESOshop<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-211" class="submenu-aim"> <li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/shop/category/"> Shop Products <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-212" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/annualreport/"> Annual Reports </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/apparel/"> Apparel </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/book/"> Books </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/brochure/"> Brochures </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/calendar/"> Calendars </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/capjournal/"> CAPjournals </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/conferenceitem/"> Conferences </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/donation/"> Donations </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/media/"> DVDs/Bluray/CDs </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/educationalmaterial/"> Educational Material </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/supernovaactivity/"> ESO Supernova Activities </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/flyer/"> Flyers </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/handout/"> Handouts </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/map/"> Maps </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/merchandise/"> Merchandise </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/messenger/"> Messengers </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/mountedimage/"> Mounted Images </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/postcard/"> Postcards </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/printedposter/"> Posters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/technicaldocument/"> Reports </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/category/sticker/"> Stickers </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/cart/"> View shopping cart </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/checkout/"> Checkout </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/shopinfo/"> Information <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-236" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shopinfo/bulk_orders/"> Bulk Orders </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shopinfo/"> Purchasing Steps </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shopinfo/payment/"> Payment </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shopinfo/shipping/"> Shipping </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shopinfo/shopstaff/"> Staff Shopping </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shopinfo/terms/"> Terms &amp; Conditions </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/freeorder/"> Free Orders for Educators and Media </a></li> </ul> </div> </div> </li> <li class="current"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/">Telescopes &amp; Instruments<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1 current"> <ul id="submenu-aim-244" class="submenu-aim selected current"> <li class="submenu current"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/"> Paranal Observatory <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-245" class="submenu-aim sublevel selected current"><li class="submenu current"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/"> Very Large Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-246" class="submenu-aim sublevel selected current"><li class="submenu current"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/"> VLT Instruments <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-247" class="submenu-aim sublevel selected current current-leaf"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/4lgsf/"> 4LGSF </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/amber/"> AMBER </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/crires/"> CRIRES </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/espresso/"> ESPRESSO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/eris/"> ERIS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/flames/"> FLAMES </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/fors/"> FORS1 and FORS2 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/gravity/"> GRAVITY </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/hawk-i/"> HAWK-I </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/isaac/"> ISAAC </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/kmos/"> KMOS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/mad/"> MAD </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/matisse/"> MATISSE </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/midi/"> MIDI </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/moons/"> MOONS </a></li><li class=" current current-leaf"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/"> MUSE </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naco/"> NACO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naomi/"> NAOMI </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/pionier/"> PIONIER </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sinfoni/"> SINFONI </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sphere/"> SPHERE </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/uves/"> UVES </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vimos/"> VIMOS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/visir/"> VISIR </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/x-shooter/"> X-shooter </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vtl-test-cameras/"> VLT Test Cameras </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vinci/"> VINCI </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/"> VLT Unit Telescopes Names <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-275" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/antu/"> Antu </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/kueyen/"> Kueyen </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/melipal/"> Melipal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/yepun/"> Yepun </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/auxiliarytelescopes/"> Auxiliary Telescopes </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/"> Survey Telescopes <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-281" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/"> VISTA <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-282" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/mirror/"> The VISTA mirror </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/camera/"> VIRCAM </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/4most/"> 4MOST </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/surveys/"> The VISTA surveys </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/consortium/"> The VISTA consortium </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/"> VST <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-288" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/mirror/"> The VST mirrors </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/camera/"> OmegaCAM </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/surveys/"> The VST surveys </a></li></ul></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/speculoos/"> SPECULOOS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/ngts/"> NGTS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal-observatory/cta/"> Cherenkov Telescope Array </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/"> La Silla Observatory <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-295" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/swedish/"> Swedish–ESO Submillimetre Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-296" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/swedish/simba/"> SIMBA </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/ntt/"> New Technology Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-298" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/ntt/efosc2/"> EFOSC2 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/ntt/emmi/"> EMMI </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/ntt/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/ntt/sofi/"> SOFI </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/ntt/soxs/"> SOXS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/ntt/susi2/"> SUSI and SUSI2 </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/"> ESO 3.6-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-305" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/adonis/"> ADONIS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/caspec/"> CASPEC </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/harps/"> HARPS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/mefos/"> MEFOS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/nirps/"> NIRPS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/optopus/"> OPTOPUS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/timmi2/"> TIMMI/2 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/36-infrared-photometer-spectrophotometer/"> Infrared Photometer/Spectrophotometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/36-standard-photometer/"> Standard Photometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/infrared-specklegraph/"> Infrared Specklegraph </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/infrared-speckle-interferometer/"> Infrared Speckle Interferometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/36/efosc/"> EFOSC </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/mpg22/"> MPG/ESO 2.2-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-319" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/mpg22/feros/"> FEROS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/mpg22/grond/"> GROND </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/mpg22/irac2/"> IRAC &amp; IRAC2 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/mpg22/pisco/"> PISCO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/mpg22/wfi/"> WFI </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/mpg22/infrared-photometer-spectrophotometer/"> Infrared Photometer/Spectrophotometer </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/swiss/"> Swiss 1.2-metre Leonhard Euler Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-326" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/swiss/coralie/"> CORALIE </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/rem/"> Rapid Eye Mount telescope </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/trappist/"> TRAnsiting Planets and PlanetesImals Small Telescope–South </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish154/"> Danish 1.54-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-330" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish154/coravel/"> CORAVEL </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish154/dfosc/"> DFOSC </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish154/ccd/"> CCD camera </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish154/hb-photometer/"> Hβ Photometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish154/two-channel-photometer/"> Two-Channel Photometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish154/four-channel-photometer/"> Four-Channel Photometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish154/six-channel-photometer/"> Six-Channel uvby-Hβ Photometer </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/tarot/"> Télescope à Action Rapide pour les Objets Transitoires </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/1mschmidt/"> ESO 1-metre Schmidt telescope </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/152metre/"> ESO 1.52-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-340" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/152metre/bandc/"> Boller and Chivens Spectrograph </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/152metre/coude/"> Coudé Spectrograph </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/152metre/echelec/"> ECHELEC </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/152metre/rv-cass-spectrograph/"> RV Cass Spectrograph </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/1metre/"> ESO 1-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-345" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/1metre/fideos/"> FIDEOS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/1metre/infrared-photometer/"> Infrared Photometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/1metre/single-channel-photometer/"> Single-Channel Photometer </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/05metre/"> ESO 0.5-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-349" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/05metre/single-channel-photometer/"> Single-Channel Photometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/05metre/double-channel-photometer/"> Double-Channel Photometer </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/coude/"> Coudé Auxiliary Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-352" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/coude/ces/"> CES </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/marly/"> MarLy 1-metre telescope </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/09metre/"> Dutch 0.9-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-355" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/09metre/walraven/"> Walraven Photometer </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/t70/"> Swiss T70 telescope </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/bochum/"> Bochum 0.61-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-358" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-scanner/"> Bochum Scanner </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-photometer/"> Bochum Photometer </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish05/"> Danish 0.5-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-361" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish05/danish-two-channel-hb-photometer/"> Two-Channel Hβ Photometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish05/danish-four-channel-uvby-photometer/"> Four-Channel uvby Photometer </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/danish05/danish-six-channel-uvby-hb-photometer/"> Six-Channel uvby–Hβ Photometer </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/gpo/"> Grand Prisme Objectif telescope </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/swiss04/"> Swiss 0.4-metre telescope </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/marseille/"> Marseille 0.36-metre telescope </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/grb/"> GRB Monitoring System </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/mascara/"> MASCARA </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/blackgem/"> BlackGEM </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/extra/"> ExTrA </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/lasilla/test-bed/"> Test-Bed Telescope </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/"> APEX <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-373" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/artemis/"> ArTéMiS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/laboca/"> LABOCA </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/saboca/"> SABOCA </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/sepia/"> SEPIA </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/apex-2a/"> APEX–2A </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/aszca/"> ASZCa </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/champ-plus/"> CHAMP+ </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/flash/"> FLASH </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/flash-plus/"> FLASH+ </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/mpi_11thz/"> MPI_1.1THz </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/p-artemis/"> P-ArTéMiS </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/pi230/"> PI230 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/polka/"> PolKa </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/apex/shefi/"> SHeFI </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/alma/"> ALMA <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-388" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/alma/antennas/"> Antennas </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/alma/transporters/"> Transporters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/alma/interferometry/"> Interferometry </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/alma/receiver-bands/"> Receiver Bands </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/alma/residencia/"> ALMA Residencia </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/elt/"> ELT </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/technology/"> Technology for Telescopes <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-395" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/technology/active_optics/"> Active Optics </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/technology/adaptive_optics/"> Adaptive Optics </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/technology/ifu/"> Integral Field Units </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/technology/interferometry/"> Interferometry </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/technology/spectroscopy/"> Spectroscopy </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/instruments/"> Instruments </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/science/">Discoveries<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-402" class="submenu-aim"> <li class=""><a href="/web/20210127071201/https://www.eso.org/public/science/top10/"> ESO Top 10 Astronomical Discoveries </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/science/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/science/gravitationalwaves/"> Gravitational Wave Sources </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/science/gc/"> Black Hole at the Centre of our Galaxy </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/science/grb/"> Gamma-Ray Bursts </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/science/archive/"> Science Archive </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/events/">Events<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-409" class="submenu-aim"> <li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/press-evt/"> Press Events </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/"> Special Events <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-411" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/ann18065/"> Open House Day 2018 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/asteroid-day/"> Asteroid Day </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse17/"> Open House Day 2017 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/announcements/ann16071/"> Open House Day 2016 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/MeetESO/"> #MeetESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse15/"> Long Night of Science 2015 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2014/"> ASTRONET 2014 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse14/"> Open House Day 2014 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/eeltblast/"> ELT Groundbreaking </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/cafe-and-kosmos/"> Café &amp; Kosmos in Munich </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse13/"> Open House Day 2013 </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/"> ASTRONET 2013 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-423" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/dates/"> Important Dates </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/registration/"> Registration, Fees and Payment </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/abstracts/"> Abstract Submission </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/venue/"> Workshop Venue </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/practical_information/"> Practical Information </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/accommodation/"> Accommodation </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/organisers_partners/"> Organisers &amp; Partners </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/contact/"> Contact </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/schedule/"> Schedule </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/astronet2013/participants/"> Participants </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/"> ESO 50 Years <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-434" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/message/"> Message from the DG </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/50highlights50years/"> Fifty Highlights </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/competitions/"> Competitions </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/twitter/"> Twitter Feed </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/webcast/"> Webcast </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/"> Europe to the Stars <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-440" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/news/"> News </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/movie/"> Movie </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/book/"> Book </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/reviews/"> Reviews </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/bios/"> Bios </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/offers/"> Purchase Offers </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/press/"> For the Press </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years/europetothestars/contact/"> Contact Us </a></li></ul></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/50years-in-chile/"> 50 years of ESO in Chile </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/awesome-universe/"> Awesome Universe <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-450" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/awesome-universe/venues/"> List of venues </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/awesome-universe/organisers/"> For Exhibitors </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/iya2009/"> IYA 2009 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/100ha/"> 100 Hours of Astronomy </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/theeye/"> The Eye 3D </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/imax-hidden-universe/"> IMAX® 3D Film Hidden Universe </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse11/"> Open House Day 2011 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse09/"> Open House Day 2009 (German) </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/bond/"> Bond at Paranal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/lndw-2007eng/"> Long Night of Science 2007 </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse/"> Open House Day 2006 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-461" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse/ohd06-winnerslist/"> List of Prize Winners </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse/tdot06/"> Deutsche Fassung </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/openhouse/tdot06-gewinnerliste/"> Liste der Preisgewinner </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/pt-011203/"> Public Talks 2003 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/special-evt/eso40years/"> ESO 40 Years (1962 - 2002) </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/events/exhibitions/"> Exhibitions <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-467" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/exhibitions/perma_exhibitions/"> ESO Permanent Exhibitions </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.esof.eu/"> EuroScience Open Forum (ESOF) </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://eas.unige.ch/EWASS2016/"> EWASS 2016 </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/https://aas.org/meetings/aas227"> AAS Winter 2016 </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/"> Astronomical Events <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-472" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/solareclipse2019/"> Total Solar Eclipse 2019 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/mcnaught2007/"> The Comet McNaught 2007 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/deepimpact/"> Deep Impact - 04.07.2005 </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.vt-2004.org/"> The Venus Transit - 08.11.2004 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/leonids99/"> The Leonids - 17.11.1999 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/eclipse99/"> Solar Eclipse at ESO HQ - 11.08.1999 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/leonids98/"> The Leonids - 11.1998 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/pathfinder/"> Mars Pathfinder - 1997 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/hyakutake/"> Comet Hyakutake - 1997 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/sl9/"> SL-9 and Jupiter - 1994 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/astro-evt/hale-bopp/"> Comet Hale Bopp - 1994 </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/events/seminars/"> Astronomy Communication Seminars </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/outreach/">Outreach<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-485" class="submenu-aim"> <li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/"> Education <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-486" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/education/"> Educational Material </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.scienceinschool.org/" target="_blank"> Science in School </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.sterrenlab.com/camps/eso-astronomy-camp-2017/"> ESO Astronomy Camp 2017 </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/https://web.archive.org/web/20190722044743/http://www.sterrenlab.com/camps/eso-astronomy-camp-2016/"> ESO Astronomy Camp 2016 </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/https://web.archive.org/web/20190810160701/http://www.sterrenlab.com/camps/eso-astronomy-camp-2015/"> ESO Astronomy Camp 2015 </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/https://web.archive.org/web/20190321214717/http://www.sterrenlab.com/camps/eso-astronomy-camp-2014/"> ESO Astronomy Camp 2014 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/teacherschools/"> Teacher Schools </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/prev-programmes/"> Previous Programmes <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-494" class="submenu-aim sublevel"><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.eaae-astronomy.org/catchastar/cas2013"> Catch a Star 2013 </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.eaae-astronomy.org/catchastar/cas2011"> Catch a Star 2011 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/cas/cas2008/"> Catch a Star 2008 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/cas/cas2007/"> Catch a Star 2007 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/cas/cas2005/"> Catch a Star 2005 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/cas/cas2004/"> Catch a Star 2004 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/cas/cas2003/"> Catch a Star 2003 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/cas/cas2002/"> Catch a Star 2002 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/liu/"> Life in the Universe </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/pos/"> Physics On Stage </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/eduoff/seaspace/docs/"> Sea &amp; Space </a></li></ul></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://kids.alma.cl/?lang=en"> ALMA Kids </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/"> Partnerships <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-507" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/translators/"> Volunteer Translators </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/eson/"> ESO Science Outreach Network </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/chile/"> Collaborations in Chile <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-510" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/chile/2010/"> 2010 </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/chile/2009/"> 2009 </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/eso-ambassadors/"> ESO Outreach Ambassadors </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/organisations/"> ESO Outreach Partner Organisations </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/educators/"> Informal Educators </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://eso.us2.list-manage1.com/subscribe?u=c35dd77ef962de779092c970b&amp;id=bd58d6ae8d"> Outreach Newsletter Form </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/photo-ambassadors/"> ESO Photo Ambassadors </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/partnerships/music-ambassadors/"> ESO Music Ambassadors </a></li></ul></li><li class=""><a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/outreach/first-picture-of-a-black-hole/blog/"> Taking the First Picture of a Black Hole </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/communication-resources/"> Astronomy Communication Resources </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/gems/"> Cosmic Gems </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/social/"> Social Media </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/outreach/ultra-high-definition/"> Ultra HD Expedition <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-523" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/ultra-high-definition/team/"> Meet our Heroes </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/ultra-high-definition/journey/"> Journey Schedule </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/ultra-high-definition/equipment/"> Equipment </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/ultra-high-definition/technology-partners/"> Technology Partners </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/ultra-high-definition/blog/"> Blog </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/for_planetariums/"> For Planetariums </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.eso.org/public/outreach/webcams/"> Webcams </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/your_eso_pictures/"> Your ESO Pictures </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/astroprize/"> European Astronomy Journalism Prize </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/outreach/hiddentreasures/"> Hidden Treasures <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-533" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/hiddentreasures/rules/"> Hidden Treasures Rules </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/hiddentreasures/instructions/"> Hidden Treasures Instructions </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/hiddentreasures/science_archive/"> Hidden Treasures Form </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.flickr.com/groups/esohiddentreasures/"> Flickr Upload </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/outreach/department/"> Our Team <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-538" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/department/students/"> Students and Visitors </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://supernova.eso.org/join-us/"> Join us </a></li></ul></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://supernova.eso.org/"> ESO Supernova </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/art/"> Art at ESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/outreach/data2dome/"> Data2Dome </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/blog/"> ESOblog </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/products/">Products<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-545" class="submenu-aim"> <li class="submenu"><a class="no-link children" href="#"> Audiovisual and multimedia <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-546" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/models3d/"> 3D models </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/applications/"> Apps </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/media/"> DVDs and CDs </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/imaxfilms/"> IMAX movies </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/minisites/"> Mini-sites </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/music/"> Music </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/planetariumshows/"> Planetarium shows </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/presentations/"> Presentations </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/virtualtours/"> Virtual Tours </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> Periodicals <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-556" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/messengers/"> Messenger </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/capjournals/"> CAP Journal </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/schools/"> Science in School </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> Print products <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-560" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/annualreports/"> Annual Reports </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/books/"> Books </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/brochures/"> Brochures </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/bulletins/"> Bulletins </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/calendars/"> Calendars </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/conf_posters/"> Conference posters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/flyers/"> Flyers </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/handouts/"> Handouts </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/maps/"> Maps </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/presskits/"> Press kits </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/reports/"> Reports </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/postcards/"> Postcards </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/stickers/"> Stickers </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/print_posters/"> Printed posters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/papermodels/"> Paper models </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/products/merchandise/"> Merchandise <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-576" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/merchandise/"> Merchandise </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/apparel/"> Apparel </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/mountedimages/"> Mounted images </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/stationery/"> Stationery </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> Electronic products <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-581" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/electroniccards/"> Electronic cards </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/elec_posters/"> Electronic posters </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/epublications/"> ePublications </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/education/"> Educational material </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/exhibitions/"> Exhibition material </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/products/logos/"> Logos </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/shop/"> Order in ESOshop </a></li> </ul> </div> </div> </li> <li><a href="/web/20210127071201/https://www.eso.org/public/industry/">Business@ESO<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-589" class="submenu-aim"> <li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/cp.html"> Procurement at ESO </a></li><li class=""><a href="https://web.archive.org/web/20210127071201/http://www.eso.org/public/industry/events/"> Industry Events </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/industry/techtrans/"> Technology Transfer <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-592" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/techtrans/technology-developed-by-industry-or-institutes/"> Technology Developed by Industries </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/techtrans/develeso/"> Novel technologies by ESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/techtrans/developments/"> ESO know-how </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/industry/projects/"> Future Projects <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-596" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/projects/elt/"> Working with the ELT </a></li></ul></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/industry/safety.html"> Safety <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-598" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/safety/emergency.html"> Emergency &amp; Evacuation </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/safety/traffic.html"> Traffic &amp; Parking at ESO </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/safety/contractors.html"> Contractors at ESO </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/industry/contact/"> Contact Information </a></li> </ul> </div> </div> </li> <li><a href="https://web.archive.org/web/20210127071201/https://recruitment.eso.org/">Jobs<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-603" class="submenu-aim"> <li class=""><a href="https://web.archive.org/web/20210127071201/https://recruitment.eso.org/"> Recruitment </a></li><li class="submenu"><a href="/web/20210127071201/https://www.eso.org/public/jobs/conditions/"> Employment Conditions <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-605" class="submenu-aim sublevel"><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/conditions/intstaff/"> International Staff Members </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/conditions/localstaff/"> Local Staff Members (Spanish / English) </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/conditions/fellows/"> Fellows </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/conditions/students/"> Students </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/conditions/paidassoc/"> Paid Associates </a></li></ul></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/pes/"> Human Resources </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/grants/"> Grants </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/how_to_use/"> How to use this site </a></li><li class=""><a href="/web/20210127071201/https://www.eso.org/public/jobs/terms/"> Site Terms </a></li> </ul> </div> </div> </li> </ul> </div> </nav> <div id="content" class=""> <div id="eso-side-logo"> <a href="/web/20210127071201/https://www.eso.org/public/"> <div data-spy="affix" class="affix"> <div class="sprites-esologo"></div> <span>European<br>Southern<br>Observatory</span> </div> </a> </div> <div class="container " id="body"> <div class="row no-page"> <div class="col-md-12"> </div> </div> <div class="row page"> <div class="col-md-12 one-column"> <div id="edit-info-block"> <div id="page-edit-success" class="alert alert-success alert-dismissible" role="alert" style="display: none"> <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button> Page saved successfully </div> <div id="page-edit-failure" class="alert alert-danger alert-dismissible" role="alert" style="display: none"> <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button> Couldn't save page :( Please try again. </div> </div> <div class="page-content"> <div id="editable-content"> <h1>MUSE</h1> <h2>Multi Unit Spectroscopic Explorer</h2> <p><a href="/web/20210127071201/https://www.eso.org/public/images/muse-designreview-cc/"><img src="/web/20210127071201im_/https://www.eso.org/public/archives/static/teles-instr/vlt/images/muse-designreview-cc_pano.jpg" border="0"></a></p> <div class="row"> <div class="col-md-8"> <p><a href="/web/20210127071201/https://www.eso.org/public/images/eso1437a/"><img style="float: left; padding: 5px 20px 10px 0px;" src="/web/20210127071201im_/https://www.eso.org/public/archives/images/potwmedium/eso1437a.jpg" border="0"></a> Looking like a machine straight out of the movie The Matrix, with its Medusa-like hoses and connections, MUSE is the latest of the second-generation instruments to be installed on <a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal/">Yepun</a> (UT4), the fourth Unit Telescope of the <a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal/">Very Large Telescope</a> at the Paranal Observatory.</p> <p>Like <a href="/web/20210127071201/https://www.eso.org/public/teles-instr/vlt/vlt-instr/sinfoni/ ">SINFONI</a>, MUSE is an integral field spectrograph (IFS). An IFS allows you to observe the entirety of an astronomical object in one go, and for each pixel measures the intensity of the light as a function of its colour, or wavelength. The resulting data is a 3D set where each pixel of the image has a full <a href="https://web.archive.org/web/20210127071201/http://www.eso.org/public/teles-instr/technology/spectroscopy/">spectrum</a> of the light. MUSE splits the field of view into 24 individual image segments or channels which are each split further into 48 slices or “mini slits”, giving a total of 1152 mini slits. Each set of 48 mini slits is injected into a spectrograph, which disperses the light into its constituent colours, and MUSE measures over 4000 of these colours! From this, the 3D image is created.</p> <p><a href="/web/20210127071201/https://www.eso.org/public/images/potw1441a/"><img style="float: right; padding: 7px 0px 0px 20px;" src="/web/20210127071201im_/https://www.eso.org/public/archives/images/potwmedium/potw1441a.jpg" border="0"></a>“<em>MUSE has been built with the intention of studying the content and processes going on in the very early Universe, when the first stars and galaxies were forming,</em>” explains Fernando Selman, Instrument Scientist for MUSE. “<em>Closer in time and space, MUSE will map the <a href="/web/20210127071201/https://www.eso.org/sci/facilities/develop/ao/sys/galacsi.html">dark matter</a> distribution in clusters of galaxies using the <a href="https://web.archive.org/web/20210127071201/http://en.wikipedia.org/wiki/Gravitational_microlensing" target="_blank" rel="noopener">gravitational microlensing</a> effect on background galaxies.</em>” MUSE will also provide detailed information about the internal dynamics of many classes of galaxies with unprecedented detail. “<em>It has already been used to study the <a href="https://web.archive.org/web/20210127071201/http://en.wikipedia.org/wiki/Sombrero_Galaxy" target="_blank" rel="noopener">Sombrero Galaxy</a> in <a href="https://web.archive.org/web/20210127071201/http://en.wikipedia.org/wiki/Virgo_(constellation)" target="_blank" rel="noopener">Virgo</a>, and, in the same cluster, a recently discovered new type of object — a galaxy being destroyed after falling into the cluster and encountering the cluster’s hot gaseous corona,</em>” continues Fernando. An image of this galaxy is shown on this page. The stars themselves found within bigger objects will also be a focus of study — impressive vistas of the <a href="https://web.archive.org/web/20210127071201/https://en.wikipedia.org/wiki/Tarantula_Nebula" target="_blank" rel="noopener">Tarantula Nebula</a> and its huge collection of massive young stars have been obtained during the testing phase, and an enormous mosaic of the <a href="https://web.archive.org/web/20210127071201/http://en.wikipedia.org/wiki/Orion_Nebula" target="_blank" rel="noopener">Orion Nebula</a> has been produced.</p> <p>With nearly 400 million pixels to be processed in real time, MUSE has presented Paranal Observatory with new computation and communication challenges. During the first phase of commissioning alone, nearly half a billion spectra were produced!</p> <h2>MUSE and adaptive optics</h2> <p>MUSE entered a new era in 2017 with the advanced capabilities of the <a href="https://web.archive.org/web/20210127071201/http://www.eso.org/public/news/eso1724/">Adaptive Optics Facility</a> (AOF). The AOF with Artificial laser stars (<a href="https://web.archive.org/web/20210127071201/http://www.eso.org/public/news/eso1613/">4LGSF</a>); deformable active mirrors (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/announcements/ann16078/">ann16078</a>); multiple wavefront sensors <a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/announcements/ann16025/">GALACSI</a> will develop the full potential of MUSE and is comparable to moving the telescope 900 metres above the Paranal summit, a height free of the effects of the most turbulent layers of the atmosphere, giving much clearer images than before.</p> <p>MUSE was will be the first of the VLT’s second generation instruments to taste these new capabilities. The module GALACSI will routinely deliver images to MUSE at optical wavelengths of a quality that was previously possible only on the few clearest nights of the year if at all.</p> <p>“<em>MUSE with the AOF system will allow for the completion of surveys of the remote Universe with unique sensitivity, permitting studies of the earliest galaxies and large scale structures,</em>” says Selman. “<em>During its lifetime we expect many great contributions from this instrument for a wide range of astronomical investigations</em>".</p> <h2>Science highlights with MUSE</h2> <ul> <li>Star found orbiting lonely black hole (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1802/">eso1802</a>)</li> <li>MUSE used to conduct deepest ever spectroscopic survey (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1738/">eso1738</a>)</li> <li>First light observed from gravitational wave source (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1733/">eso1733</a>)</li> <li>MUSE reveals a previously unknown way to fuel supermassive black holes (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1725/">eso1725</a>)</li> <li>New type of star formation observed (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1710/">eso1710</a>)</li> <li>Discovery of&nbsp;glowing gas clouds surrounding distant quasars (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1638/">eso1638</a>)</li> <li>MUSE solves mystery of a rare change in the behaviour of a supermassive black hole at the centre of a distant galaxy (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1631/">eso1631</a>)</li> <li>Possible first signs of self-interacting dark matter (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1514/">eso1514</a>)</li> <li>MUSE gives astronomers the best ever three-dimensional view of the deep Universe (<a href="https://web.archive.org/web/20210127071201/https://www.eso.org/public/news/eso1507/">eso1507</a>)</li> <li>MUSE Reveals True Story Behind Galactic Crash (<a href="/web/20210127071201/https://www.eso.org/public/news/eso1437/">eso1437</a>)</li> </ul> </div> <div class="col-md-4"> <h3>MUSE Movie</h3> <div class="youtube-embed-iframe-wrapper"><iframe src="https://web.archive.org/web/20210127071201if_/https://www.youtube.com/embed/-fh2Y6Zyhwc?rel=0" frameborder="0"></iframe></div> <p><small>Download the MUSE movie in the <a href="/web/20210127071201/https://www.eso.org/public/videos/ann17025a/">video archive</a>.</small></p> <table class="table table-bordered" width="100%"> <tbody> <tr> <td> <h3>MUSE</h3> <p><small> The authoritative technical specifications as offered for astronomical observations are available from the <a href="/web/20210127071201/https://www.eso.org/sci/facilities/paranal/instruments/muse.html">Science Operation page</a>.</small></p> <table class="table"> <tbody> <tr> <td valign="top" width="60"><strong>Name:</strong></td> <td valign="top">Multi Unit Spectroscopic Explorer</td> </tr> <tr> <td valign="top" width="30"><strong>Site:</strong></td> <td valign="top">Paranal</td> </tr> <tr> <td valign="top" width="30"><strong>Telescope:</strong></td> <td valign="top"><a href="/web/20210127071201/https://www.eso.org/public/teles-instr/paranal/">Very Large Telescope</a>, UT4</td> </tr> <tr> <td valign="top"><strong>Focus:</strong></td> <td valign="top">Nasmyth</td> </tr> <tr> <td valign="top"><strong>Type:</strong></td> <td valign="top">Integral field spectrograph, imager</td> </tr> <tr> <td valign="top"><strong>Wavelength coverage:</strong></td> <td valign="top">465–930 nm</td> </tr> <tr> <td valign="top"><strong>Spatial resolution:</strong></td> <td valign="top">Seeing limited, with 0.2-arcsecond pixels.</td> </tr> <tr> <td valign="top"><strong>Spectral resolution:</strong></td> <td valign="top">From 1700 in the blue to 3400 in the red.</td> </tr> <tr> <td valign="top"><strong>First light date:</strong></td> <td valign="top">March 2014 (<a href="/web/20210127071201/https://www.eso.org/public/news/eso1407/">eso1407</a>)</td> </tr> <tr> <td valign="top"><strong>Images taken with the instrument:</strong></td> <td valign="top"><a href="/web/20210127071201/https://www.eso.org/public/images/archive/search/?adv=&amp;instrument=54">Link</a></td> </tr> <tr> <td valign="top"><strong>Images of the instrument:</strong></td> <td valign="top"><a href="/web/20210127071201/https://www.eso.org/public/images/archive/search/?subject_name=MUSE">Link</a></td> </tr> <tr> <td valign="top"> <p><strong>Videos of the instrument:</strong></p> </td> <td valign="top"> <p><a href="/web/20210127071201/https://www.eso.org/public/videos/archive/search/?subject_name=MUSE">Link</a></p> </td> </tr> <tr> <td valign="top"><strong>Press Releases with the instrument:</strong></td> <td valign="top"><a href="/web/20210127071201/https://www.eso.org/public/news/archive/search/?published_until_year=0&amp;published_until_day=0&amp;description=&amp;title=&amp;instruments=54&amp;subject_name=&amp;published_since_day=0&amp;published_since_month=0&amp;published_until_month=0&amp;id=&amp;published_since_year=0">Link</a></td> </tr> <tr> <td valign="top"><strong>Data papers:</strong></td> <td valign="top"> <p><a href="https://web.archive.org/web/20210127071201/http://telbib.eso.org/index.php?&amp;flimiti=off&amp;fq[]=instrument:MUSE">Link</a></p> <p><a href="https://web.archive.org/web/20210127071201/http://www.eso.org/sci/observing/policies/publications.html">ESO data citation policy</a></p> </td> </tr> <tr> <td valign="top"><strong>Science goals:</strong></td> <td valign="top">Galaxy formation, nearby galaxies, stars and resolved stellar populations, Solar System</td> </tr> <tr> <td valign="top"> <p><strong>Consortium</strong>:</p> </td> <td valign="top"> <p><strong>ESO</strong></p> <p><strong>France</strong>: Centre de Recherche Astrophysique de Lyon (<a href="https://web.archive.org/web/20210127071201/http://www-obs.univ-lyon1.fr/" target="_blank" rel="noopener">CRAL</a>); Laboratoire d’Astrophysique de Tarbes-Toulouse (<a href="https://web.archive.org/web/20210127071201/http://www.ast.obs-mip.fr /" target="_blank" rel="noopener">LATT</a>)</p> <p><strong>The Netherlands</strong>: Leiden Observatory (Sterrewacht Leiden)</p> <p><strong>Germany</strong>: Göttingen Astrophysics Institute (<a href="https://web.archive.org/web/20210127071201/https://www.uni-goettingen.de/de/institut/215072.html" target="_blank" rel="noopener">AIG</a>); Potsdam Astrophysikalisches Institut (<a href="https://web.archive.org/web/20210127071201/http://www.uni-sw.gwdg.de/" target="_blank" rel="noopener">AIP</a>)</p> <p><strong>Switzerland</strong>: Astrophysics department of the Zurich Polytechnic Institute of Technology (<a href="https://web.archive.org/web/20210127071201/http://www.ethz.ch/" target="_blank" rel="noopener">ETH</a>)</p> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </div> </div> </div> </div> </div> </div> </div> <!-- #body --> <div class="row footernote"> <div class="col-xs-12 col-md-3"> <a href="https://web.archive.org/web/20210127071201/mailto:information@eso.org">Send us your comments!</a> </div> <div class="col-xs-12 col-md-3"> <a href="/web/20210127071201/https://www.eso.org/public/outreach/newsletters/esonews/">Subscribe to receive news from ESO in your language</a> </div> <div class="col-xs-12 col-md-3"> <a href="https://web.archive.org/web/20210127071201/https://www.cdn77.com/">Accelerated by CDN77</a> </div> <div class="col-xs-12 col-md-3"> <a href="/web/20210127071201/https://www.eso.org/public/about-eso/privacy/">Terms &amp; Conditions</a> </div> </div> <link href="/web/20210127071201cs_/https://www.eso.org/public/archives/djp/css/extras.166b25c68b97.css" rel="stylesheet" type="text/css"/> <script type="text/javascript">var MEDIA_URL = "/public/archives/"</script> <script type="text/javascript" src="/web/20210127071201js_/https://www.eso.org/public/archives/djp/js/main.097c0244ddc7.js" charset="utf-8"></script> </div> <!-- content --> <div id="social-share" class="hidden-print"> <div class="link facebook" data-toggle="tooltip" data-placement="right" title="Share on Facebook"> <a href="https://web.archive.org/web/20210127071201/https://www.facebook.com/sharer/sharer.php?u=https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" target="_blank"><i class="fa fa-facebook" aria-hidden="true"></i></a> </div> <div class="link twitter" data-toggle="tooltip" data-placement="right" title="Share on Twitter"> <a href="https://web.archive.org/web/20210127071201/http://twitter.com/intent/tweet?url=https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/&amp;text=MUSE&amp;via=ESO" target="_blank"><i class="fa fa-twitter" aria-hidden="true"></i></a> </div> <div class="link pinterest" data-toggle="tooltip" data-placement="right" title="Share on Pinterest"> <a href="https://web.archive.org/web/20210127071201/http://pinterest.com/pin/create/button/?url=https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/&amp;media=&amp;description=MUSE" target="_blank"><i class="fa fa-pinterest" aria-hidden="true"></i></a> </div> <div class="link print" data-toggle="tooltip" data-placement="right" title="Print"> <a href="javascript:window.print()" target="_blank"><i class="fa fa-print" aria-hidden="true"></i></a> </div> <div class="link email" data-toggle="tooltip" data-placement="right" title="Share by email"> <a href="https://web.archive.org/web/20210127071201/mailto:%20?subject=ESO — MUSE&amp;body=https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/" target="_blank"><i class="fa fa-envelope-o" aria-hidden="true"></i></a> </div> </div> <script> $('[data-toggle="tooltip"]').tooltip(); </script> <input type="hidden" name="csrfmiddlewaretoken" value="BIS5MICGPMYAwID6RSVUSgyxs2PSNzZ63HEolvgyCvGskAeWXWUzY7HOqbjEVJmZ"/> </body> </html> <!-- FILE ARCHIVED ON 07:12:01 Jan 27, 2021 AND RETRIEVED FROM THE INTERNET ARCHIVE ON 23:38:41 Nov 23, 2024. JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE. ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C. SECTION 108(a)(3)). --> <!-- playback timings (ms): captures_list: 0.937 exclusion.robots: 0.061 exclusion.robots.policy: 0.045 esindex: 0.017 cdx.remote: 19.751 LoadShardBlock: 523.134 (3) PetaboxLoader3.datanode: 520.99 (5) PetaboxLoader3.resolve: 235.41 (3) load_resource: 351.253 loaddict: 51.319 -->

Pages: 1 2 3 4 5 6 7 8 9 10