Picture of the Week 2012

<!DOCTYPE html> <html lang="en"> <head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb#"><script type="text/javascript" src="https://web-static.archive.org/_static/js/bundle-playback.js?v=7YQSqjSh" charset="utf-8"></script> <script type="text/javascript" src="https://web-static.archive.org/_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="https://web-static.archive.org/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://www.eso.org/public/images/potw/archive/year/2012/","20220401084453","https://web.archive.org/","web","https://web-static.archive.org/_static/", "1648802693"); </script> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/banner-styles.css?v=p7PEIJWi" /> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/iconochive.css?v=3PDvdIFv" />  <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="description" content="Picture of the Week 2012"/> <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"/> <meta name="statvooVerification" content="f546f5bccd3fb7f8c5d8e97c6beab814"/> <link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2012/" hreflang="x-default"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/australia/images/potw/archive/year/2012/" hreflang="en-au"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/unitedkingdom/images/potw/archive/year/2012/" hreflang="en-gb"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/ireland/images/potw/archive/year/2012/" hreflang="en-ie"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/usa/images/potw/archive/year/2012/" hreflang="en-us"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/albania/images/potw/archive/year/2012/" hreflang="sq"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/czechrepublic/images/potw/archive/year/2012/" hreflang="cs"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/denmark/images/potw/archive/year/2012/" hreflang="da"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/netherlands/images/potw/archive/year/2012/" hreflang="nl"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/belgium-nl/images/potw/archive/year/2012/" hreflang="nl-be"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/finland/images/potw/archive/year/2012/" hreflang="fi"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/france/images/potw/archive/year/2012/" hreflang="fr"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/belgium-fr/images/potw/archive/year/2012/" hreflang="fr-be"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/switzerland-fr/images/potw/archive/year/2012/" hreflang="fr-ch"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/germany/images/potw/archive/year/2012/" hreflang="de"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/austria/images/potw/archive/year/2012/" hreflang="de-at"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/belgium-de/images/potw/archive/year/2012/" hreflang="de-be"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/switzerland-de/images/potw/archive/year/2012/" hreflang="de-ch"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/greece/images/potw/archive/year/2012/" hreflang="el"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/hungary/images/potw/archive/year/2012/" hreflang="hu"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/iceland/images/potw/archive/year/2012/" hreflang="is"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/italy/images/potw/archive/year/2012/" hreflang="it"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/switzerland-it/images/potw/archive/year/2012/" hreflang="it-ch"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/norway/images/potw/archive/year/2012/" hreflang="nb"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/poland/images/potw/archive/year/2012/" hreflang="pl"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/brazil/images/potw/archive/year/2012/" hreflang="pt-br"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/portugal/images/potw/archive/year/2012/" hreflang="pt"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/russia/images/potw/archive/year/2012/" hreflang="ru"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/spain/images/potw/archive/year/2012/" hreflang="es"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/chile/images/potw/archive/year/2012/" hreflang="es-cl"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/serbia/images/potw/archive/year/2012/" hreflang="sr-latn"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/sweden/images/potw/archive/year/2012/" hreflang="sv"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/turkey/images/potw/archive/year/2012/" hreflang="tr"/><link rel="alternate" href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/ukraine/images/potw/archive/year/2012/" hreflang="uk"/> <link rel="shortcut icon" href="https://web.archive.org/web/20220401084453im_/https://www.eso.org/public/archives/favicon.ico"/> <title>Picture of the Week 2012 | ESO</title>  <style type="text/css"> @import url("https://web.archive.org/web/20220401084453cs_/https://fast.fonts.net/t/1.css?apiType=css&projectid=03892b9b-79f6-4f01-9746-af912ebf5e47"); </style> <link href="/web/20220401084453cs_/https://www.eso.org/public/archives/djp/css/main.36985f868815.css" rel="stylesheet" type="text/css"/> <link href="https://web.archive.org/web/20220401084453/http://feeds.feedburner.com/EsoTopNews" rel="alternate" type="application/rss+xml" title="ESO Top News"/> <link href="https://web.archive.org/web/20220401084453/http://feeds.feedburner.com/EsoAnnouncements" rel="alternate" type="application/rss+xml" title="ESO Announcements"/> <link href="https://web.archive.org/web/20220401084453/http://feeds.feedburner.com/ESOcast" rel="alternate" type="application/rss+xml" title="ESOCast"/> <link href="https://web.archive.org/web/20220401084453/https://recruitment.eso.org/jobs.rss" rel="alternate" type="application/rss+xml" title="Jobs@ESO"/> <link href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/blog/feed/" rel="alternate" type="application/rss+xml" title="ESOblog"/>  <meta name="twitter:card" content="summary"/> <meta name="twitter:site" content="@ESO"/> <meta name="twitter:creator" content="@ESO"/>  <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>  <meta property="og:title" content="Picture of the Week 2012"/> </head> <body> <input type="hidden" name="csrfmiddlewaretoken" value="xU5jzoDuNCnOA7K9tME8Zm2dUlKJ2OznMLPPUGrJSxo9cjtD8wr51VdsAbv7Tvt4"/> <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/20220401084453/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/20220401084453/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"> </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/20220401084453/https://www.eso.org/public/images/potw/archive/year/2012/?lang"><div title="International English" class="flag sprites-flag_en"> </div>International English</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/denmark/images/potw/archive/year/2012/?lang"><div title="Dansk" class="flag sprites-flag_da"> </div>Dansk</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/germany/images/potw/archive/year/2012/?lang"><div title="Deutsch" class="flag sprites-flag_de"> </div>Deutsch</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/belgium-de/images/potw/archive/year/2012/?lang"><div title="Deutsch (Belgien)" class="flag sprites-flag_be"> </div>Deutsch (Belgien)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/switzerland-de/images/potw/archive/year/2012/?lang"><div title="Deutsch (Schweiz)" class="flag sprites-flag_ch"> </div>Deutsch (Schweiz)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/austria/images/potw/archive/year/2012/?lang"><div title="Deutsch (Österreich)" class="flag sprites-flag_at"> </div>Deutsch (Österreich)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/australia/images/potw/archive/year/2012/?lang"><div title="English (Australia)" class="flag sprites-flag_au"> </div>English (Australia)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/ireland/images/potw/archive/year/2012/?lang"><div title="English (Ireland)" class="flag sprites-flag_ie"> </div>English (Ireland)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/unitedkingdom/images/potw/archive/year/2012/?lang"><div title="English (UK)" class="flag sprites-flag_gb"> </div>English (UK)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/usa/images/potw/archive/year/2012/?lang"><div title="English (USA)" class="flag sprites-flag_us"> </div>English (USA)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/spain/images/potw/archive/year/2012/?lang"><div title="Español" class="flag sprites-flag_es"> </div>Español</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/chile/images/potw/archive/year/2012/?lang"><div title="Español (Chile)" class="flag sprites-flag_cl"> </div>Español (Chile)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/france/images/potw/archive/year/2012/?lang"><div title="Français" class="flag sprites-flag_fr"> </div>Français</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/belgium-fr/images/potw/archive/year/2012/?lang"><div title="Français (Belgique)" class="flag sprites-flag_be"> </div>Français (Belgique)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/switzerland-fr/images/potw/archive/year/2012/?lang"><div title="Français (Suisse)" class="flag sprites-flag_ch"> </div>Français (Suisse)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/italy/images/potw/archive/year/2012/?lang"><div title="Italiano" class="flag sprites-flag_it"> </div>Italiano</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/switzerland-it/images/potw/archive/year/2012/?lang"><div title="Italiano (Svizzera)" class="flag sprites-flag_ch"> </div>Italiano (Svizzera)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/hungary/images/potw/archive/year/2012/?lang"><div title="Magyarország" class="flag sprites-flag_hu"> </div>Magyarország</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/netherlands/images/potw/archive/year/2012/?lang"><div title="Nederlands" class="flag sprites-flag_nl"> </div>Nederlands</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/belgium-nl/images/potw/archive/year/2012/?lang"><div title="Nederlands (België)" class="flag sprites-flag_be"> </div>Nederlands (België)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/norway/images/potw/archive/year/2012/?lang"><div title="Norsk" class="flag sprites-flag_nb"> </div>Norsk</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/poland/images/potw/archive/year/2012/?lang"><div title="Polski" class="flag sprites-flag_pl"> </div>Polski</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/portugal/images/potw/archive/year/2012/?lang"><div title="Português" class="flag sprites-flag_pt"> </div>Português</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/brazil/images/potw/archive/year/2012/?lang"><div title="Português (Brasil)" class="flag sprites-flag_br"> </div>Português (Brasil)</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/albania/images/potw/archive/year/2012/?lang"><div title="Shqip" class="flag sprites-flag_sq"> </div>Shqip</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/serbia/images/potw/archive/year/2012/?lang"><div title="Srpski" class="flag sprites-flag_sr-latn"> </div>Srpski</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/finland/images/potw/archive/year/2012/?lang"><div title="Suomi" class="flag sprites-flag_fi"> </div>Suomi</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/sweden/images/potw/archive/year/2012/?lang"><div title="Svenska" class="flag sprites-flag_sv"> </div>Svenska</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/turkey/images/potw/archive/year/2012/?lang"><div title="Türkçe" class="flag sprites-flag_tr"> </div>Türkçe</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/iceland/images/potw/archive/year/2012/?lang"><div title="Íslenska" class="flag sprites-flag_is"> </div>Íslenska</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/czechrepublic/images/potw/archive/year/2012/?lang"><div title="Česky" class="flag sprites-flag_cs"> </div>Česky</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/russia/images/potw/archive/year/2012/?lang"><div title="Русский" class="flag sprites-flag_ru"> </div>Русский</a></li> <li class="language"><a role="menuitem" href="/web/20220401084453/https://www.eso.org/public/ukraine/images/potw/archive/year/2012/?lang"><div title="українська" class="flag sprites-flag_uk"> </div>українська</a></li> </ul> </div> </div> <div class="sections"> <a href="https://web.archive.org/web/20220401084453/https://www.eso.org/sci.html">Science</a> <a href="/web/20220401084453/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/20220401084453/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>   </div> </form> </div> </div> <div class="links"> <a href="/web/20220401084453/https://www.eso.org/public/outreach/newsletters/esonews/">Subscribe</a> <a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/">Contact</a> <a href="/web/20220401084453/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/20220401084453/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/20220401084453/https://www.eso.org/public/about-eso/esoglance/"> ESO, the European Southern Observatory </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/organisation/"> Organisation </a></li><li class="submenu"><a href="/web/20220401084453/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/20220401084453/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/20220401084453/https://www.eso.org/public/about-eso/dg-office/xbarcons/"> Prof. Xavier Barcons </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/dg-office/tdezeeuw/"> Prof. T. de Zeeuw </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/dg-office/ccesarsk/"> Dr. C. Cesarsky </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/dg-office/rgiacconi/"> Prof. R. Giacconi </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/dg-office/hvanderlaan/"> Prof. H. van der Laan </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/dg-office/lwoltjer/"> Prof. L. Woltjer </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/dg-office/ablaauw/"> Prof. A. Blaauw </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/https://www.eso.org/public/about-eso/committees.html"> ESO's Governing Bodies </a></li><li class="submenu"><a href="/web/20220401084453/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/20220401084453/https://www.eso.org/public/about-eso/memberstates/austrianinvolvement/"> Austria </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/belgianinvolvement/"> Belgium </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/czechinvolvement/"> Czech Republic </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/danishinvolvement/"> Denmark </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/finnishinvolvement/"> Finland </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/frenchinvolvement/"> France </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/germaninvolvement/"> Germany </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/irishinvolvement/"> Ireland </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/italianinvolvement/"> Italy </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/dutchinvolvement/"> Netherlands </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/polishinvolvement/"> Poland </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/portugueseinvolvement/"> Portugal </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/spanishinvolvement/"> Spain </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/swedishinvolvement/"> Sweden </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/swissinvolvement/"> Switzerland </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/memberstates/britishinvolvement/"> United Kingdom </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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/20220401084453/https://www.eso.org/public/about-eso/travel/garching/"> Travel to ESO Headquarters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/vitacura/"> Travel to Vitacura Office </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/guesthouse/"> Travel to Guesthouse </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/lasilla/"> Travel to La Silla </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/laserena/"> Travel to La Serena </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/paranal/"> Travel to Paranal </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/antofagasta/"> Travel to Antofagasta </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/apexsequitor/"> Travel to APEX/Sequitor </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/chajnantor/"> Travel to Chajnantor </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/travel/elt/"> Travel to ELT Armazones </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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/20220401084453/https://www.eso.org/public/about-eso/visitors/paranal/"> Weekend visits to Paranal </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/visitors/lasilla/"> Weekend Visits to La Silla </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/visitors/alma/"> Public Visits to the ALMA OSF </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/pressmedia/mediavisits/"> Media Visits </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/societal-benefits/"> ESO and Society </a></li><li class="submenu"><a href="/web/20220401084453/https://www.eso.org/public/about-eso/eso-and-chile/"> ESO & 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-50" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/eso-and-chile/representation-office-chile/"> ESO Representation Office in Chile </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/architecture/"> Architecture at ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/collaborations/"> Collaborations with ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/acronyms/"> ESO Acronyms </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/timeline/"> Timeline </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/green/"> Environmental sustainability at ESO </a></li><li class="submenu"><a href="/web/20220401084453/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-57" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/faq/faq-eso/"> ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/faq/faq-vlt-paranal/"> VLT/Paranal </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/faq/faq-apex-alma/"> APEX/ALMA </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/faq/faq-survey-telescopes/"> Survey Telescopes </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/https://elt.eso.org/about/faq/"> ELT </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/faq/privileges_and_immunities/"> Privileges and Immunities </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/faq/faq-eso-australia/"> ESO & Australia </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/dark-skies-preservation/"> Dark skies preservation </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/about-eso/privacy/"> Terms and Conditions </a></li> </ul> </div> </div> </li> <li class="current"><a href="/web/20220401084453/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 current"> <ul id="submenu-aim-67" class="submenu-aim selected current"> <li class=""><a href="/web/20220401084453/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-69" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/360pano/ "> 360 Panorama </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/alma/"> ALMA </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/apex/"> APEX </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/chile/"> Chile </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/cosmology/"> Cosmology </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/elt/"> ELT </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/eso-supernova/"> ESO Supernova </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/fulldome/"> Fulldome </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/galaxies/"> Galaxies </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/galaxyclusters/"> Galaxy Clusters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/illustrations/"> Illustrations </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/lasilla/"> La Silla </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/nebulae/"> Nebulae </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/paranal/"> Paranal </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/peopleandevents/"> People and Events </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/premises/"> Premises </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/blackholes/"> Quasars and Black Holes </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/solarsystem/"> Solar System </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/starclusters/"> Star Clusters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/stars/"> Stars </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/category/surveytelescopes/"> Survey Telescopes </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/comparisons/"> Image Comparisons </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/imageformats/"> Image Formats </a></li><li class="submenu current"><a href="/web/20220401084453/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-94" class="submenu-aim sublevel selected current current-leaf"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2022/"> 2022 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2021/"> 2021 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2020/"> 2020 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2019/"> 2019 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2018/"> 2018 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2017/"> 2017 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2016/"> 2016 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2015/"> 2015 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2014/"> 2014 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2013/"> 2013 </a></li><li class=" current current-leaf"><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2012/"> 2012 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2011/"> 2011 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2010/"> 2010 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2009/"> 2009 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2008/"> 2008 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2007/"> 2007 </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-111" class="submenu-aim sublevel"><li class=""><a href="https://web.archive.org/web/20220401084453/https://cdn.eso.org/images/top100-large.zip"> Large JPG Zip File (3.5 GB) </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/https://cdn.eso.org/images/top100-original.zip"> Original TIF Zip File (50 GB) </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/copyright/"> Usage of ESO Images and Videos </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/wallpapers/"> Wallpapers </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/images/archive/zoomable/"> Zoomable </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/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-117" class="submenu-aim"> <li class=""><a href="/web/20220401084453/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-119" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/abouteso/"> About ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/alma/"> ALMA </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/apex/"> APEX </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/compilations/"> Compilations </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/cosmology/"> Cosmology </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/elt/"> ELT </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/esocast/"> ESOcast </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/events/"> Events </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/featuremovies/"> Feature Movies </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/fulldome/"> Fulldome </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/galaxies/"> Galaxies </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/galaxyclusters/"> Galaxy Clusters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/lasilla/"> La Silla </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/nebulae/"> Nebulae </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/paranal/"> Paranal </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/premises/"> Premises </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/blackholes/"> Quasars and Black Holes </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/solarsystem/"> Solar System </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/starclusters/"> Star Clusters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/stars/"> Stars </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videos/archive/category/vnr/"> Video News Releases </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/copyright/"> Usage of ESO Videos and Images </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/videoformats/"> Video Formats </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/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-144" class="submenu-aim"> <li class="submenu"><a href="/web/20220401084453/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-145" 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-146" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2022/"> 2022 </a></li><li class=""><a href="/web/20220401084453/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-149" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2020/"> 2020 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2019/"> 2019 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2018/"> 2018 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2017/"> 2017 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2016/"> 2016 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2015/"> 2015 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2014/"> 2014 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2013/"> 2013 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2012/"> 2012 </a></li><li class=""><a href="/web/20220401084453/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-160" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2010/"> 2010 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2009/"> 2009 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2008/"> 2008 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2007/"> 2007 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2006/"> 2006 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2005/"> 2005 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2004/"> 2004 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2003/"> 2003 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2002/"> 2002 </a></li><li class=""><a href="/web/20220401084453/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-171" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/2000/"> 2000 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1999/"> 1999 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1998/"> 1998 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1997/"> 1997 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1996/"> 1996 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1995/"> 1995 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1994/"> 1994 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1993/"> 1993 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1992/"> 1992 </a></li><li class=""><a href="/web/20220401084453/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-182" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1990/"> 1990 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1989/"> 1989 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1988/"> 1988 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1987/"> 1987 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1986/"> 1986 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/archive/year/1985/"> 1985 </a></li></ul></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-189" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2022/"> 2022 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2021/"> 2021 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2020/"> 2020 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2019/"> 2019 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2018/"> 2018 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2017/"> 2017 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2016/"> 2016 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2015/"> 2015 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2014/"> 2014 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2013/"> 2013 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2012/"> 2012 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2011/"> 2011 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2010/"> 2010 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/archive/year/2009/"> 2009 </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/news/starsateso/"> Stars@ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/webupdates/"> New on eso.org </a></li><li class="submenu"><a href="/web/20220401084453/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-206" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/broadcast/"> Broadcast Services </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/pressmedia/mediavisits/"> Media Visits </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/copyright/"> Copyright Notice </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-210" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/newsletters/esonews/"> ESO News </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/newsletters/outreach/"> ESO Outreach Community Newsletter </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/sci/publications/newsletter/"> ESO Science Newsletter </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/newsletters/#2"> ESO Media Newsletter </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/presscoverage/"> Press Coverage </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/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-216" class="submenu-aim"> <li class="submenu"><a href="/web/20220401084453/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-217" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/annualreport/"> Annual Reports </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/apparel/"> Apparel </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/book/"> Books </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/brochure/"> Brochures </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/calendar/"> Calendars </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/capjournal/"> CAPjournals </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/conferenceitem/"> Conferences </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/donation/"> Donations </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/media/"> DVDs/Bluray/CDs </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/educationalmaterial/"> Educational Material </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/supernovaactivity/"> ESO Supernova Activities </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/flyer/"> Flyers </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/handout/"> Handouts </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/map/"> Maps </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/merchandise/"> Merchandise </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/messenger/"> Messengers </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/mountedimage/"> Mounted Images </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/postcard/"> Postcards </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/printedposter/"> Posters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/technicaldocument/"> Reports </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/category/sticker/"> Stickers </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/cart/"> View shopping cart </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/checkout/"> Checkout </a></li><li class="submenu"><a href="/web/20220401084453/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-241" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shopinfo/bulk_orders/"> Bulk Orders </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shopinfo/"> Purchasing Steps </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shopinfo/payment/"> Payment </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shopinfo/shipping/"> Shipping </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shopinfo/shopstaff/"> Staff Shopping </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shopinfo/terms/"> Terms & Conditions </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/freeorder/"> Free Orders for Educators and Media </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/">Telescopes & 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"> <ul id="submenu-aim-249" class="submenu-aim"> <li class="submenu"><a href="/web/20220401084453/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-250" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20220401084453/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-251" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20220401084453/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-252" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/4lgsf/"> 4LGSF </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/crires/"> CRIRES </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/crires+/"> CRIRES+ </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/espresso/"> ESPRESSO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/eris/"> ERIS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/flames/"> FLAMES </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/fors/"> FORS1 and FORS2 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/hawk-i/"> HAWK-I </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/isaac/"> ISAAC </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/kmos/"> KMOS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/mad/"> MAD </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/moons/"> MOONS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/"> MUSE </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naco/"> NACO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sinfoni/"> SINFONI </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sphere/"> SPHERE </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/uves/"> UVES </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vimos/"> VIMOS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/visir/"> VISIR </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/x-shooter/"> X-shooter </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vtl-test-cameras/"> VLT Test Cameras </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-274" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/antu/"> Antu </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/kueyen/"> Kueyen </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/melipal/"> Melipal </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/yepun/"> Yepun </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlti/"> VLT Interferometer <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-279" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/gravity/"> GRAVITY </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/matisse/"> MATISSE </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naomi/"> NAOMI </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/pionier/"> PIONIER </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/amber/"> AMBER </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/midi/"> MIDI </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vinci/"> VINCI </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/auxiliarytelescopes/"> Auxiliary Telescopes </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-288" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20220401084453/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-289" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/mirror/"> The VISTA mirror </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/camera/"> VIRCAM </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/4most/"> 4MOST </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/surveys/"> The VISTA surveys </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/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-295" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/mirror/"> The VST mirrors </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/camera/"> OmegaCAM </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/speculoos/"> SPECULOOS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/ngts/"> NGTS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/paranal-observatory/cta/"> Cherenkov Telescope Array </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-302" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20220401084453/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-303" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/swedish/simba/"> SIMBA </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-305" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/ntt/efosc2/"> EFOSC2 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/ntt/emmi/"> EMMI </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/ntt/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/ntt/sofi/"> SOFI </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/ntt/soxs/"> SOXS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/ntt/susi2/"> SUSI and SUSI2 </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-312" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/adonis/"> ADONIS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/caspec/"> CASPEC </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/harps/"> HARPS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/mefos/"> MEFOS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/nirps/"> NIRPS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/optopus/"> OPTOPUS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/timmi2/"> TIMMI/2 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/36-infrared-photometer-spectrophotometer/"> Infrared Photometer/Spectrophotometer </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/36-standard-photometer/"> Standard Photometer </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/infrared-specklegraph/"> Infrared Specklegraph </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/infrared-speckle-interferometer/"> Infrared Speckle Interferometer </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/36/efosc/"> EFOSC </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-326" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/mpg22/feros/"> FEROS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/mpg22/grond/"> GROND </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/mpg22/irac2/"> IRAC & IRAC2 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/mpg22/pisco/"> PISCO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/mpg22/wfi/"> WFI </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/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-333" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/swiss/coralie/"> CORALIE </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/rem/"> Rapid Eye Mount telescope </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/trappist/"> TRAnsiting Planets and PlanetesImals Small Telescope–South </a></li><li class="submenu"><a href="/web/20220401084453/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-337" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/danish154/coravel/"> CORAVEL </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/danish154/dfosc/"> DFOSC </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/danish154/ccd/"> CCD camera </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/danish154/hb-photometer/"> Hβ Photometer </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/danish154/two-channel-photometer/"> Two-Channel Photometer </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/danish154/four-channel-photometer/"> Four-Channel Photometer </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/https://www.eso.org/public/teles-instr/lasilla/tarot/"> Télescope à Action Rapide pour les Objets Transitoires </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/1mschmidt/"> ESO 1-metre Schmidt telescope </a></li><li class="submenu"><a href="/web/20220401084453/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-347" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/152metre/bandc/"> Boller and Chivens Spectrograph </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/152metre/coude/"> Coudé Spectrograph </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/152metre/echelec/"> ECHELEC </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/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-352" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/1metre/fideos/"> FIDEOS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/1metre/infrared-photometer/"> Infrared Photometer </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/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-356" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/05metre/single-channel-photometer/"> Single-Channel Photometer </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/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-359" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/coude/ces/"> CES </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/marly/"> MarLy 1-metre telescope </a></li><li class="submenu"><a href="/web/20220401084453/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-362" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/09metre/walraven/"> Walraven Photometer </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/t70/"> Swiss T70 telescope </a></li><li class="submenu"><a href="/web/20220401084453/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-365" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-scanner/"> Bochum Scanner </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-photometer/"> Bochum Photometer </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-368" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/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/20220401084453/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/20220401084453/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/20220401084453/https://www.eso.org/public/teles-instr/lasilla/gpo/"> Grand Prisme Objectif telescope </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/swiss04/"> Swiss 0.4-metre telescope </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/marseille/"> Marseille 0.36-metre telescope </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/grb/"> GRB Monitoring System </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/mascara/"> MASCARA </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/blackgem/"> BlackGEM </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/extra/"> ExTrA </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/lasilla/test-bed/"> Test-Bed Telescope </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-380" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/apex-2a/"> APEX–2A </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/artemis/"> ArTéMiS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/aszca/"> ASZCa </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/champ-plus/"> CHAMP+ </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/concerto/"> CONCERTO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/flash/"> FLASH </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/flash-plus/"> FLASH+ </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/laboca/"> LABOCA </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/mpi_11thz/"> MPI_1.1THz </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/p-artemis/"> P-ArTéMiS </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/pi230/"> PI230 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/polka/"> PolKa </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/saboca/"> SABOCA </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/sepia/"> SEPIA </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/apex/shefi/"> SHeFI </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-396" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/alma/antennas/"> Antennas </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/alma/transporters/"> Transporters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/alma/interferometry/"> Interferometry </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/alma/receiver-bands/"> Receiver Bands </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/alma/residencia/"> ALMA Residencia </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/elt/"> ELT </a></li><li class="submenu"><a href="/web/20220401084453/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-403" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/technology/active_optics/"> Active Optics </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/technology/adaptive_optics/"> Adaptive Optics </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/technology/ifu/"> Integral Field Units </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/technology/interferometry/"> Interferometry </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/technology/spectroscopy/"> Spectroscopy </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/technology/polarimetry/"> Polarimetry </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/teles-instr/instruments/"> Instruments </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/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-411" class="submenu-aim"> <li class=""><a href="/web/20220401084453/https://www.eso.org/public/science/top10/"> ESO Top 10 Astronomical Discoveries </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/science/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/science/gravitationalwaves/"> Gravitational Wave Sources </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/science/gc/"> Black Hole at the Centre of our Galaxy </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/science/grb/"> Gamma-Ray Bursts </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/science/archive/"> Science Archive </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/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-418" class="submenu-aim"> <li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/press-evt/"> Press Events </a></li><li class="submenu"><a href="/web/20220401084453/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-420" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/ann18065/"> Open House Day 2018 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/openhouse17/"> Open House Day 2017 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/ann16071/"> Open House Day 2016 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/announcements/?search=%23MeetESO"> #MeetESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/openhouse15/"> Long Night of Science 2015 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2014/"> ASTRONET 2014 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/openhouse14/"> Open House Day 2014 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/eeltblast/"> ELT Groundbreaking </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/cafe-and-kosmos/"> Café & Kosmos in Munich </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/openhouse13/"> Open House Day 2013 </a></li><li class="submenu"><a href="/web/20220401084453/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-431" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/dates/"> Important Dates </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/registration/"> Registration, Fees and Payment </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/abstracts/"> Abstract Submission </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/venue/"> Workshop Venue </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/practical_information/"> Practical Information </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/accommodation/"> Accommodation </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/organisers_partners/"> Organisers & Partners </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/contact/"> Contact </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/schedule/"> Schedule </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/astronet2013/participants/"> Participants </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-442" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/message/"> Message from the DG </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/50highlights50years/"> Fifty Highlights </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/competitions/"> Competitions </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/twitter/"> Twitter Feed </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/webcast/"> Webcast </a></li><li class="submenu"><a href="/web/20220401084453/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-448" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/europetothestars/news/"> News </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/europetothestars/movie/"> Movie </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/europetothestars/book/"> Book </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/europetothestars/reviews/"> Reviews </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/europetothestars/bios/"> Bios </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/europetothestars/offers/"> Purchase Offers </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/europetothestars/press/"> For the Press </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/50years/europetothestars/contact/"> Contact Us </a></li></ul></li></ul></li><li class=""><a href="/web/20220401084453/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/20220401084453/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-458" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/awesome-universe/venues/"> List of venues </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/awesome-universe/organisers/"> For Exhibitors </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/100ha/"> 100 Hours of Astronomy </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/theeye/"> The Eye 3D </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/imax-hidden-universe/"> IMAX® 3D Film Hidden Universe </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/openhouse11/"> Open House Day 2011 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/openhouse09/"> Open House Day 2009 (German) </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/bond/"> Bond at Paranal </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/openhouse/"> Open House Day 2006 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/special-evt/eso40years/"> ESO 40 Years (1962 - 2002) </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-469" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/exhibitions/perma_exhibitions/"> ESO Permanent Exhibitions </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://www.esof.eu/"> EuroScience Open Forum (ESOF) </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://eas.unige.ch/EWASS2016/"> EWASS 2016 </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/https://aas.org/meetings/aas227"> AAS Winter 2016 </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-474" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/solareclipse2019/"> Total Solar Eclipse 2019 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/mcnaught2007/"> The Comet McNaught 2007 </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/http://www.vt-2004.org/"> The Venus Transit - 08.11.2004 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/leonids99/"> The Leonids - 17.11.1999 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/eclipse99/"> Solar Eclipse at ESO HQ - 11.08.1999 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/leonids98/"> The Leonids - 11.1998 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/pathfinder/"> Mars Pathfinder - 1997 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/hyakutake/"> Comet Hyakutake - 1997 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/sl9/"> SL-9 and Jupiter - 1994 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/astro-evt/hale-bopp/"> Comet Hale Bopp - 1994 </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/events/seminars/"> Astronomy Communication Seminars </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/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-487" class="submenu-aim"> <li class="submenu"><a href="/web/20220401084453/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-488" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/education/"> Educational Material </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://www.scienceinschool.org/" target="_blank"> Science in School </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/eduoff/teacherschools/"> Teacher Schools </a></li><li class="submenu"><a href="/web/20220401084453/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-492" class="submenu-aim sublevel"><li class=""><a href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/outreach/eduoff/prev-programmes/catch-a-star/"> Catch a Star </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/eduoff/liu/"> Life in the Universe </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/eduoff/pos/"> Physics On Stage </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/eduoff/seaspace/docs/"> Sea & Space </a></li></ul></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://kids.alma.cl/?lang=en"> ALMA Kids </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-498" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/partnerships/translators/"> Volunteer Translators </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/partnerships/eson/"> ESO Science Outreach Network </a></li><li class="submenu"><a href="/web/20220401084453/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-501" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/partnerships/chile/2010/"> 2010 </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/partnerships/chile/2009/"> 2009 </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/partnerships/eso-ambassadors/"> ESO Outreach Ambassadors </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/partnerships/organisations/"> ESO Outreach Partner Organisations </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/partnerships/educators/"> Informal Educators </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://eso.us2.list-manage1.com/subscribe?u=c35dd77ef962de779092c970b&id=bd58d6ae8d"> Outreach Newsletter Form </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/partnerships/photo-ambassadors/"> ESO Photo Ambassadors </a></li><li class=""><a href="/web/20220401084453/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/20220401084453/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/20220401084453/https://www.eso.org/public/outreach/communication-resources/"> Astronomy Communication Resources </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/gems/"> Cosmic Gems </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/social/"> Social Media </a></li><li class="submenu"><a href="/web/20220401084453/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-514" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/ultra-high-definition/team/"> Meet our Heroes </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/ultra-high-definition/journey/"> Journey Schedule </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/ultra-high-definition/equipment/"> Equipment </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/ultra-high-definition/technology-partners/"> Technology Partners </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/ultra-high-definition/blog/"> Blog </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/for_planetariums/"> For Planetariums </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://www.eso.org/public/outreach/webcams/"> Webcams </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/your_eso_pictures/"> Your ESO Pictures </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/astroprize/"> European Astronomy Journalism Prize </a></li><li class="submenu"><a href="/web/20220401084453/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-524" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/hiddentreasures/rules/"> Hidden Treasures Rules </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/hiddentreasures/instructions/"> Hidden Treasures Instructions </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/hiddentreasures/science_archive/"> Hidden Treasures Form </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://www.flickr.com/groups/esohiddentreasures/"> Flickr Upload </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-529" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/department/students/"> Students and Visitors </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://supernova.eso.org/join-us/"> Join us </a></li></ul></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://supernova.eso.org/"> ESO Supernova </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/art/"> Art at ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/outreach/data2dome/"> Data2Dome </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/blog/"> ESOblog </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/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-536" 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-537" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/models3d/"> 3D models </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/applications/"> Apps </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/media/"> DVDs and CDs </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/imaxfilms/"> IMAX movies </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/minisites/"> Mini-sites </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/music/"> Music </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/planetariumshows/"> Planetarium shows </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/presentations/"> Presentations </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/products/virtualbackgrounds/"> Virtual Backgrounds </a></li><li class=""><a href="/web/20220401084453/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-548" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/messengers/"> Messenger </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/capjournals/"> CAPjournal </a></li><li class=""><a href="/web/20220401084453/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-552" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/annualreports/"> Annual Reports </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/books/"> Books </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/brochures/"> Brochures </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/bulletins/"> Bulletins </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/calendars/"> Calendars </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/conf_posters/"> Conference posters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/flyers/"> Flyers </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/handouts/"> Handouts </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/maps/"> Maps </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/presskits/"> Press kits </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/reports/"> Reports </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/postcards/"> Postcards </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/stickers/"> Stickers </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/print_posters/"> Printed posters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/papermodels/"> Paper models </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-568" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/merchandise/"> Merchandise </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/apparel/"> Apparel </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/mountedimages/"> Mounted images </a></li><li class=""><a href="/web/20220401084453/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-573" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/electroniccards/"> Electronic cards </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/elec_posters/"> Electronic posters </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/epublications/"> ePublications </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/products/virtualbackgrounds/"> Virtual Backgrounds </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/education/"> Educational material </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/exhibitions/"> Exhibition material </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/products/logos/"> Logos </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/shop/"> Order in ESOshop </a></li> </ul> </div> </div> </li> <li><a href="/web/20220401084453/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-582" class="submenu-aim"> <li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/cp.html"> Procurement at ESO </a></li><li class=""><a href="https://web.archive.org/web/20220401084453/http://www.eso.org/public/industry/events/"> Industry Events </a></li><li class="submenu"><a href="/web/20220401084453/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-585" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/techtrans/technology-developed-by-industry-or-institutes/"> Technology Developed by Industries </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/techtrans/develeso/"> Novel technologies by ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/techtrans/developments/"> ESO know-how </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-589" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/projects/elt/"> Working with the ELT </a></li></ul></li><li class="submenu"><a href="/web/20220401084453/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-591" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/safety/emergency.html"> Emergency & Evacuation </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/safety/traffic.html"> Traffic & Parking at ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/safety/contractors.html"> Contractors at ESO </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/industry/contact/"> Contact Information </a></li> </ul> </div> </div> </li> <li><a href="https://web.archive.org/web/20220401084453/https://recruitment.eso.org/">Career Opportunities<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-596" class="submenu-aim"> <li class=""><a href="https://web.archive.org/web/20220401084453/https://recruitment.eso.org/"> Recruitment </a></li><li class="submenu"><a href="/web/20220401084453/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-598" class="submenu-aim sublevel"><li class=""><a href="/web/20220401084453/https://www.eso.org/public/jobs/conditions/intstaff/"> International Staff Members </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/jobs/conditions/localstaff/"> Local Staff Members (Spanish / English) </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/jobs/conditions/fellows/"> Fellows </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/jobs/conditions/students/"> Students </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/jobs/conditions/paidassoc/"> Paid Associates </a></li></ul></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/jobs/working-at-eso/"> Working at ESO </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/jobs/other-information/"> Other Information </a></li><li class=""><a href="/web/20220401084453/https://www.eso.org/public/jobs/how_to_use/"> How to use this site </a></li> </ul> </div> </div> </li> </ul> </div> </nav> <div id="content" class=""> <div id="eso-side-logo"> <a href="/web/20220401084453/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 class="archive-search outside"><form class="form-inline" role="form" action="/web/20220401084453/https://www.eso.org/public/images/potw/" method="GET"><div class="form-group"><div class="input-group"><input id="id_archivesearch" type="text" value="" placeholder="Search Picture of the Week 2012..." name="search" class="form-control input-sm"/><span class="input-group-btn"><button class="btn btn-default btn-sm" type="submit"><span class="fa fa-search"></span></button></span></div></div></form></div> </div> </div> <div class="row no-page"> <div class="col-md-12"> <h1>Picture of the Week 2012 <a href="https://web.archive.org/web/20220401084453/http://feeds.feedburner.com/eso_potw" class="listviewrsslink"><span class="fa fa-rss"></span></a></h1> </div> </div> <div class="row no-page"> <div class="col-md-12"> <a href="https://web.archive.org/web/20220401084453/https://www.eso.org/public/outreach/newsletters/esonews.html" class="esonews_link">Subscribe to receive news from ESO in your language!</a> <div class="row news-list"> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1253a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1253a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1253 — Picture of the Week</div> <div class="news-title">Whirling southern star trails over ALMA</div> <div class="news-teaser"><strong>31 December 2012</strong>: Babak Tafreshi, one of the ESO Photo Ambassadors, has captured the antennas of the Atacama Large Millimeter/submillimeter Array (ALMA) under the southern sky in another breathtaking image. The dramatic whorls of stars in the sky are reminiscent of van Gogh’s Starry Night, or — for science fiction fans — perhaps the view from a spacecraft about to enter hyperspace. In reality, though, they show the rotation of the Earth, revealed by the photograph’s long exposure. In the southern hemisphere, as the Earth turns, the stars appear to move in circles around the south celestial pole, which lies in the dim constellation of Octans (The Octant), between the more famous Southern Cross and the Magellanic Clouds. With a long enough exposure, the stars mark out circular trails as they move. The photograph was taken on the Chajnantor Plateau, at an altitude of 5000 metres in the Chilean Andes. This is the ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1252a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1252a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1252 — Picture of the Week</div> <div class="news-title">ALMA’s solitude</div> <div class="news-teaser"><strong>24 December 2012</strong>: This panoramic view of the Chajnantor Plateau shows the site of the Atacama Large Millimeter/submillimeter Array (ALMA), taken from near the peak of Cerro Chico. Babak Tafreshi, an ESO Photo Ambassador, has succeeded in capturing the feeling of solitude experienced at the ALMA site, 5000 metres above sea level in the Chilean Andes. Light and shadow paint the landscape, enhancing the otherworldly appearance of the terrain. In the foreground of the image, clustered ALMA antennas look like a crowd of strange, robotic visitors to the plateau. When the telescope is completed in 2013, there will be a total of 66 such antennas in the array, operating together. ALMA is already revolutionising how astronomers study the Universe at millimetre and submillimetre wavelengths. Even with a partial array of antennas, ALMA is more powerful than any previous telescope at these wavelengths, giving astronomers an unprecedented capability to study the cool Universe — ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1251a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1251a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1251 — Picture of the Week</div> <div class="news-title">Paranal and the shadow of the Earth</div> <div class="news-teaser"><strong>17 December 2012</strong>: ESO Photo Ambassador, Babak Tafreshi has taken another outstanding panoramic photograph of ESO’s Paranal Observatory. In the foreground is the dramatic, mountainous landscape of the Atacama Desert. On the left, on the highest peak, is the ESO Very Large Telescope (VLT), and in front of it, on a slightly lower peak, is the VISTA telescope (Visible and Infrared Survey Telescope for Astronomy). In the background, the sunrise colours Paranal’s sky with a beautiful pastel palette. Extending beyond the horizon, the sea of clouds over the Pacific Ocean — which lies only 12 kilometres from Paranal — is visible. Above the horizon, where the sea of clouds meets the sky, a dark band can be seen. This dark band is the Earth’s shadow, cast by the planet onto its atmosphere. This phenomenon can sometimes be seen around the times of sunset and sunrise, if the sky is clear and the horizon ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1250a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1250a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1250 — Picture of the Week</div> <div class="news-title">The stars streak overhead</div> <div class="news-teaser"><strong>10 December 2012</strong>: Although this image might at first look like abstract modern art, it is in fact the result of a long camera exposure of the night sky over the Chajnantor Plateau in the Chilean Andes. As the Earth rotates towards another day, the stars of the Milky Way above the desert stretch into colourful streaks. The high-tech telescope in the foreground, meanwhile, takes on a dreamlike quality. This mesmerising photo was taken 5000 metres above sea level on the Chajnantor Plateau, home of the Atacama Pathfinder Experiment (APEX) telescope, which is seen here. APEX is a 12-metre-diameter telescope which collects light with wavelengths in the millimetre and submillimetre range. Astronomers use APEX to study objects ranging from the cold clouds of gas and cosmic dust where new stars are being born, to some of the earliest and most distant galaxies in the Universe. APEX is a pathfinder for the Atacama Large ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> </div> <div class="row news-list"> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/comparisons/potw1249a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="/web/20220401084453im_/https://www.eso.org/public/archives/imagecomparisons/thumb350x/potw1249a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1249 — Picture of the Week</div> <div class="news-title">From Antu to Yepun — The Construction of the VLT</div> <div class="news-teaser"><strong>3 December 2012</strong>: ESO turns fifty this year, and to celebrate this important anniversary, we are showing you glimpses into our history. Once a month during 2012, a special Then and Now comparison Picture of the Week shows how things have changed over the decades at the La Silla and Paranal Observatory sites, the ESO facilities in Santiago de Chile, and the Headquarters in Garching bei München, Germany.The Very Large Telescope (VLT), ESO’s flagship facility on Cerro Paranal in Chile, is made up of four giant Unit Telescopes (UTs), each sporting a mirror of 8.2-metre diameter, and four movable 1.8-metre Auxiliary Telescopes. Our pair of photographs this month shows a Unit Telescope under construction, and one in the present day.Early work on the first Unit Telescope (UT1) enclosure can be seen in the historical image, taken in late October 1995. The concrete foundations were complete and the lower, stationary part of the enclosure’s ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1248a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1248a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1248 — Picture of the Week</div> <div class="news-title">Two planet-hunters snapped at La Silla</div> <div class="news-teaser"><strong>26 November 2012</strong>: For centuries, philosophers and scientists have wondered about the possibility of habitable planets outside the Solar System. Today, this idea is more than speculation: many hundreds of exoplanets have been discovered over the last couple of decades, by astronomers all over the world. Various different techniques are used in this search for new worlds. In this unusual photograph, telescopes using two of these methods, the ESO 3.6-metre telescope with the HARPS spectrograph, and the space telescope CoRoT, have been captured in the same shot. The photograph was taken by Alexandre Santerne, an astronomer who studies exoplanets himself. The High Accuracy Radial velocity Planetary Search (HARPS) spectrograph, the world’s foremost exoplanet hunter, is an instrument on ESO’s 3.6-metre telescope. The open dome of this telescope can be seen on the left of this image, behind the angular enclosure of the New Technology Telescope. HARPS finds exoplanets by detecting small changes in ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1247a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1247a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1247 — Picture of the Week</div> <div class="news-title">APEX's icy companions</div> <div class="news-teaser"><strong>19 November 2012</strong>: The Atacama Pathfinder Experiment (APEX) telescope — captured in this dramatic image taken by ESO Photo Ambassador Babak Tafreshi — is one of the tools used by ESO to peer beyond the realm of visible light. It is located on the Chajnantor Plateau at an altitude of 5000 metres. Clusters of white penitentes can be seen in the foreground of the photograph. The penitentes (Spanish for penitents) are a curious natural phenomenon found in high altitude regions, typically more than 4000 metres above sea level. They are thin spikes of hardened snow or ice, with their blades pointing towards the Sun, attaining heights from a few centimetres up to several metres. APEX is a 12-metre-diameter telescope that observes light at millimetre and submillimetre wavelengths. Astronomers observing with APEX can see phenomena which would be invisible at shorter wavelengths. The telescope enables them to study molecular clouds — the dense regions ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1246a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1246a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1246 — Picture of the Week</div> <div class="news-title">One picture, many stories</div> <div class="news-teaser"><strong>12 November 2012</strong>: ESO Photo Ambassador, Babak Tafreshi has captured an outstanding image of the sky over ESO’s Paranal Observatory, with a treasury of deep-sky objects. The most obvious of these is the Carina Nebula, glowing intensely red in the middle of the image. The Carina Nebula lies in the constellation of Carina (The Keel), about 7500 light-years from Earth. This cloud of glowing gas and dust is the brightest nebula in the sky and contains several of the brightest and most massive stars known in the Milky Way, such as Eta Carinae. The Carina Nebula is a perfect test-bed for astronomers to unveil the mysteries of the violent birth and death of massive stars. For some beautiful recent images of the Carina Nebula from ESO, see eso1208, eso1145, and eso1031. Below the Carina Nebula, we see the Wishing Well Cluster (NGC 3532). This open cluster of young stars was named because, through ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> </div> <div class="row news-list"> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/comparisons/potw1245a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="/web/20220401084453im_/https://www.eso.org/public/archives/imagecomparisons/thumb350x/potw1245a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1245 — Picture of the Week</div> <div class="news-title">Building the Paranal Residencia — From Turbulence to Tranquility</div> <div class="news-teaser"><strong>5 November 2012</strong>: ESO turns fifty this year, and to celebrate this important anniversary, we are showing you glimpses into our history. Once a month during 2012, a special Then and Now comparison Picture of the Week shows how things have changed over the decades at the La Silla and Paranal Observatory sites, the ESO facilities in Santiago de Chile, and the Headquarters in Garching bei München, Germany. In this month’s pair of photographs, taken at ESO’s Paranal Observatory in Chile’s Atacama Desert, we compare a bustling construction site, as seen in November 1999, with the end result in the present day: the observatory’s accommodation building, known as the Paranal Residencia. Imagine the change from then to now: the clanging of hammers and drills, and the noise of tractors and cranes, have given way to the peaceful calm of a desert building that complements its surroundings. Built using natural materials and colours, and ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1244a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1244a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1244 — Picture of the Week</div> <div class="news-title">A place to unveil the mysteries of the cold universe</div> <div class="news-teaser"><strong>29 October 2012</strong>: This beautiful panoramic picture taken by Babak Tafreshi, an ESO Photo Ambassador, shows the last rays of sunlight bathing the Chajnantor Plateau in Chile’s Atacama region. The plateau is the home of the Atacama Pathfinder Experiment (APEX) telescope, which can be seen on the left of the panorama. From this remote place on Earth, 5000 metres above sea level, APEX studies the “cold Universe”. APEX is a 12-metre-diameter telescope that observes light at millimetre and submillimetre wavelengths. Astronomers observing with APEX can see phenomena which would be invisible at shorter wavelengths. The telescope enables them to study molecular clouds — the dense regions of gas and cosmic dust where new stars are being born — which are dark and obscured by dust in visible or infrared light, but which glow brightly at these relatively longer wavelengths. Astronomers use this light to study the chemical and physical conditions in the clouds. ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/comparisons/potw1243a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="/web/20220401084453im_/https://www.eso.org/public/archives/imagecomparisons/thumb350x/potw1243a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1243 — Picture of the Week</div> <div class="news-title">Building VISTA, the World’s Largest Survey Telescope</div> <div class="news-teaser"><strong>22 October 2012</strong>: ESO turns fifty this year, and to celebrate this important anniversary, we are showing you glimpses into our history. Once a month during 2012, a special Then and Now comparison Picture of the Week shows how things have changed over the decades at the La Silla and Paranal Observatory sites, the ESO facilities in Santiago de Chile, and the Headquarters in Garching bei München, Germany. Since December 2009 the Visible and Infrared Survey Telescope for Astronomy (VISTA) has been mapping the southern sky from ESO’s Paranal Observatory in Chile. Our pair of photographs this month shows the VISTA telescope, during construction and in the present day. The historical image, taken in mid-to-late 2004, shows the telescope’s building under construction. The skeleton of the telescope enclosure is visible on its circular base, surrounded by a temporary cage of scaffolding. VISTA sits on a peak about 1500 metres northeast of Cerro Paranal, ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1242a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1242a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1242 — Picture of the Week</div> <div class="news-title">From Cosmic Spare Tyre to Ethereal Blossom</div> <div class="news-teaser"><strong>15 October 2012</strong>: IC 5148 is a beautiful planetary nebula located some 3000 light-years away in the constellation of Grus (The Crane). The nebula has a diameter of a couple of light-years, and it is still growing at over 50 kilometres per second — one of the fastest expanding planetary nebulae known. The term “planetary nebula” arose in the 19th century, when the first observations of such objects — through the small telescopes available at the time — looked somewhat like giant planets. However, the true nature of planetary nebulae is quite different. When a star with a mass similar to or a few times more than that of our Sun approaches the end of its life, its outer layers are thrown off into space. The expanding gas is illuminated by the hot remaining core of the star at the centre, forming the planetary nebula, which often takes on a beautiful, glowing shape. ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> </div> <div class="row news-list"> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1241a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1241a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1241 — Picture of the Week</div> <div class="news-title">A VISTA before sunset</div> <div class="news-teaser"><strong>8 October 2012</strong>: ESO’s Paranal Observatory — located in Chile’s Atacama region — is most well known for the Very Large Telescope (VLT), ESO’s flagship telescope facility. However, over the last few years, the site has also become home to two state-of-the-art survey telescopes. These new members of the Paranal family are designed to image large areas of the sky quickly and deeply. One of them, the 4.1-metre Visible and Infrared Survey Telescope for Astronomy (VISTA), is located on a neighbouring peak not far from the Paranal summit. It is shown in this beautiful photograph taken from Paranal by ESO Photo Ambassador, Babak Tafreshi. VISTA is the world’s largest survey telescope, and has been operating since December 2009. At the lower right corner of the image, VISTA’s enclosure appears in front of a seemingly endless mountain range, which stretches to the horizon. As sunset approaches, the mountains cast longer shadows, which slowly cover ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1240a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1240a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1240 — Picture of the Week</div> <div class="news-title">Iconic, conical Licancabur watches over Chajnantor</div> <div class="news-teaser"><strong>1 October 2012</strong>: This impressive panoramic image depicts the Chajnantor Plateau — home of the Atacama Large Millimeter/submillimeter Array (ALMA) — with the majestic Licancabur volcano in the background. Watched over by Licancabur, a icy forest of penitentes (Spanish for “penitents”) cluster in the foreground. The penitentes are a curious natural phenomenon found in high-altitude regions. They are thin spikes of hardened snow or ice, with sharp edges pointing towards the Sun, reaching heights from a few centimetres up to several metres. You can read more about penitentes in a previous Picture of the Week (potw1221). The Licancabur volcano, with an altitude of 5920 metres, is the most iconic volcano in the area of San Pedro de Atacama, Chile. Its conical shape makes it easily recognisable even from very far away. It is located on the southernmost part of the border between Chile and Bolivia. The volcano contains one of the world’s highest ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1239a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1239a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1239 — Picture of the Week</div> <div class="news-title">A hard day's night ahead</div> <div class="news-teaser"><strong>24 September 2012</strong>: Sunset is typically a sign that another working day is over. City lights are slowly switched on as people return home eager to enjoy the evening and a good night’s sleep. However, this does not apply to astronomers working at an observatory such as ESO’s Paranal Observatory in Chile. Observing starts as soon as the Sun has disappeared below the horizon. Everything needs to be ready before dusk. This panoramic photograph captures the ESO Very Large Telescope (VLT) against a beautiful twilight on Cerro Paranal. The enclosures of the VLT stand out in the picture as the telescopes in them are readied for a night of studying the Universe. The VLT is the world’s most powerful advanced optical telescope, consisting of four Unit Telescopes with primary mirrors 8.2 metres in diameter and four movable 1.8-metre Auxiliary Telescopes (ATs), which can be seen in the left corner of the image. The ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1238a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1238a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1238 — Picture of the Week</div> <div class="news-title">ALMA and a starry night — a joy to behold</div> <div class="news-teaser"><strong>17 September 2012</strong>: A crystal-clear sky on any night is always a joy to behold. But if you are on the Chajnantor Plateau, at 5000 metres altitude in the Chilean Andes and one of the best places in the world for astronomical observations, it could be an experience that you’ll remember for your whole life. This panoramic view of Chajnantor shows the antennas of the Atacama Large Millimeter/submillimeter Array (ALMA) against a breathtaking starry night sky. In the foreground, we can see some of ALMA’s antennas, working together. The plateau appears curved, because of the effect of the wide-angle lens used. ALMA is the world’s most powerful telescope for studying the Universe at submillimetre and millimetre wavelengths. Construction work for ALMA will be completed in 2013, and a total of 66 of these high-precision antennas will be operating on the site. At the moment, the telescope is in its initial phase of Early ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> </div> <div class="row news-list"> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/comparisons/potw1237a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="/web/20220401084453im_/https://www.eso.org/public/archives/imagecomparisons/thumb350x/potw1237a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1237 — Picture of the Week</div> <div class="news-title">A Timeless Sanctuary in Santiago — The ESO Guesthouse, Then and Now</div> <div class="news-teaser"><strong>10 September 2012</strong>: ESO turns fifty this year, and to celebrate this important anniversary, we are showing you glimpses into our history. Once a month during 2012, a special Then and Now comparison Picture of the Week shows how things have changed over the decades at the La Silla and Paranal Observatory sites, the ESO facilities in Santiago de Chile, and the Headquarters in Garching bei München, Germany. This month, we are showing a part of ESO that feels almost timeless. After a long intercontinental flight to Santiago, or the night-shifts of an observing run at the telescopes, what could be better than a comfortable staging post at which to recover and rest before the next part of the journey? From the organisation’s earliest years, ESO’s Guesthouse in Santiago has provided just this for visitors to the observatory’s sites in Chile. Our Then and Now photographs this month show the guesthouse lounge, in ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1236a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1236a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1236 — Picture of the Week</div> <div class="news-title">A surprising superbubble</div> <div class="news-teaser"><strong>3 September 2012</strong>: This colourful new view shows the star-forming region LHA 120-N44 [1] in the Large Magellanic Cloud, a small satellite galaxy of the Milky Way. This picture combines the view in visible light from the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile with images in infrared light and X-rays from orbiting satellite observatories. At the centre of this very rich region of gas, dust and young stars lies the star cluster NGC 1929. Its massive stars produce intense radiation, expel matter at high speeds as stellar winds, and race through their short but brilliant lives to explode as supernovae. The winds and supernova shock waves have carved out a huge cavity, called a superbubble, in the surrounding gas. Observations with NASA's Chandra X-ray Observatory (shown here in blue) reveal hot regions created by these winds and shocks, while infrared data from NASA's Spitzer Space Telescope (shown in red) ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1235a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1235a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1235 — Picture of the Week</div> <div class="news-title">Night comes to Paranal</div> <div class="news-teaser"><strong>27 August 2012</strong>: Imagine that you have just watched a beautiful sunset from the top of Cerro Paranal. As the Atacama Desert silently fades into the night, ESO’s Very Large Telescope (VLT) opens its powerful eyes on the Universe. With this spectacular 360-degree panorama, you can imagine the view that you would have if you were standing there, near the southern edge of the VLT’s platform. In the foreground, the fourth of the VLT’s Auxiliary Telescopes (AT4) is opening. To its left, the Sun has already set over the Pacific Ocean — covered by clouds below the altitude of Paranal, as usual. Across the rest of the platform, the other three Auxiliary Telescopes are seen in front of the large buildings of the four 8.2-metre Unit Telescopes. Finally, the Residencia and other basecamp facilities are also visible a little distance away, near the right-hand edge of the picture. As the night begins, imagine ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> <div class="col-md-3 col-sm-6 col-xs-12"> <a href="/web/20220401084453/https://www.eso.org/public/images/potw1234a/"> <div class="news-wrapper"> <div class="news-image"> <img class="img-responsive" src="https://web.archive.org/web/20220401084453im_/https://cdn.eso.org/images/thumb350x/potw1234a.jpg"> </div> <div class="news-description"> <div class="news-id">potw1234 — Picture of the Week</div> <div class="news-title">Laser Guide Star sweeps across a starry sky</div> <div class="news-teaser"><strong>20 August 2012</strong>: A powerful laser beam from ESO’s Very Large Telescope (VLT) paints the night sky over the Chilean Atacama Desert in this stunning image taken by Julien Girard. The Earth’s rotation during the 30-minute exposure — and the movement of the laser as it compensated for this — is why the beam appears to fan out. This is also why the stars are stretched into curved trails, revealing subtle differences in their colours. The laser is used to create a point of light — an artificial star — by making sodium atoms 90 kilometres up in the Earth’s atmosphere glow. Measurements of this so-called guide star are used to correct for the blurring effect of the atmosphere in astronomical observations — a technique known as adaptive optics. While sufficiently bright natural stars are also used for adaptive optics, a laser guide star can be positioned wherever it is needed, meaning that ...</div> </div> <div class="news-readmore">Read more</div> </div>  </a> </div> </div> <div class="row statusbar"><div class="col-md-3"> Showing 1 to 20 of 53 </div><div class="col-md-6"><div class="text-center"><ul class="pagination"><li class="active"><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2012/list/1/">1</a></li><li><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2012/list/2/">2</a></li><li><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2012/list/3/">3</a></li></ul></div></div><div class="col-md-3 prev-next"><a href="/web/20220401084453/https://www.eso.org/public/images/potw/archive/year/2012/list/2/">Next</a></div></div><div class="row"><div class="col-md-12"></div></div> <div class="copyright"> <a href="/web/20220401084453/https://www.eso.org/public/outreach/copyright/">Usage of ESO Images, Videos, Web texts and Music</a><br/> </div> </div> </div> </div> </div> </div>  <div class="row footernote"> <div class="col-xs-12 col-md-3"> <a href="https://web.archive.org/web/20220401084453/mailto:information@eso.org">Send us your comments!</a> </div> <div class="col-xs-12 col-md-3"> <a href="/web/20220401084453/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/20220401084453/https://www.cdn77.com/">Accelerated by CDN77</a> </div> <div class="col-xs-12 col-md-3"> <a href="/web/20220401084453/https://www.eso.org/public/about-eso/privacy/">Terms & Conditions</a> </div> </div> <link href="/web/20220401084453cs_/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/20220401084453js_/https://www.eso.org/public/archives/djp/js/main.6ae27c5f7b90.js" charset="utf-8"></script> </div>  <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/20220401084453/https://www.facebook.com/sharer/sharer.php?u=https://www.eso.org/public/images/potw/archive/year/2012/" 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/20220401084453/http://twitter.com/intent/tweet?url=https://www.eso.org/public/images/potw/archive/year/2012/&text=&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/20220401084453/http://pinterest.com/pin/create/button/?url=https://www.eso.org/public/images/potw/archive/year/2012/&media=&description=" 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/20220401084453/mailto:%20?subject=ESO — Picture of the Week 2012&body=https://www.eso.org/public/images/potw/archive/year/2012/" 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="xU5jzoDuNCnOA7K9tME8Zm2dUlKJ2OznMLPPUGrJSxo9cjtD8wr51VdsAbv7Tvt4"/> </body> </html>

CINXE.COM

Picture of the Week 2012 | ESO