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Cesarsky </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/dg-office/rgiacconi/"> Prof. R. Giacconi </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/dg-office/hvanderlaan/"> Prof. H. van der Laan </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/dg-office/lwoltjer/"> Prof. L. Woltjer </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/dg-office/ablaauw/"> Prof. A. Blaauw </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/about-eso/committees.html"> ESO's Governing Bodies </a></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/about-eso/memberstates/austrianinvolvement/"> Austria </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/belgianinvolvement/"> Belgium </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/czechinvolvement/"> Czech Republic </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/danishinvolvement/"> Denmark </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/finnishinvolvement/"> Finland </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/frenchinvolvement/"> France </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/germaninvolvement/"> Germany </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/irishinvolvement/"> Ireland </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/italianinvolvement/"> Italy </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/dutchinvolvement/"> Netherlands </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/polishinvolvement/"> Poland </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/portugueseinvolvement/"> Portugal </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/spanishinvolvement/"> Spain </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/swedishinvolvement/"> Sweden </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/swissinvolvement/"> Switzerland </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/memberstates/britishinvolvement/"> United Kingdom </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/about-eso/travel/garching/"> Travel to ESO Headquarters </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/vitacura/"> Travel to Vitacura Office </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/guesthouse/"> Travel to Guesthouse </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/lasilla/"> Travel to La Silla </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/laserena/"> Travel to La Serena </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/paranal/"> Travel to Paranal </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/antofagasta/"> Travel to Antofagasta </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/apexsequitor/"> Travel to APEX/Sequitor </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/chajnantor/"> Travel to Chajnantor </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/travel/elt/"> Travel to ELT Armazones </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/about-eso/visitors/paranal/"> Weekend visits to Paranal </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/visitors/lasilla/"> Weekend Visits to La Silla </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/visitors/alma/"> Public Visits to the ALMA OSF </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/outreach/pressmedia/mediavisits/"> Media Visits </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/societal-benefits/"> ESO and Society </a></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/about-eso/architecture/"> Architecture at ESO </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/collaborations/"> Collaborations with ESO </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/acronyms/"> ESO Acronyms </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/timeline/"> Timeline </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/green/"> Environmental sustainability at ESO </a></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/about-eso/faq/faq-eso/"> ESO </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/faq/faq-vlt-paranal/"> VLT/Paranal </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/faq/faq-apex-alma/"> APEX/ALMA </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/faq/faq-survey-telescopes/"> Survey Telescopes </a></li><li class=""><a href="https://web.archive.org/web/20220310060713/https://elt.eso.org/about/faq/"> ELT </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/faq/privileges_and_immunities/"> Privileges and Immunities </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/faq/faq-eso-australia/"> ESO & Australia </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/dark-skies-preservation/"> Dark skies preservation </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/about-eso/privacy/"> Terms and Conditions </a></li> </ul> </div> </div> </li> <li><a href="/web/20220310060713/https://www.eso.org/public/images/">Images<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-67" class="submenu-aim"> <li class=""><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/images/archive/category/360pano/ "> 360 Panorama </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/alma/"> ALMA </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/apex/"> APEX </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/chile/"> Chile </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/cosmology/"> Cosmology </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/elt/"> ELT </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/eso-supernova/"> ESO Supernova </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/fulldome/"> Fulldome </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/galaxies/"> Galaxies </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/galaxyclusters/"> Galaxy Clusters </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/illustrations/"> Illustrations </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/lasilla/"> La Silla </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/nebulae/"> Nebulae </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/paranal/"> Paranal </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/peopleandevents/"> People and Events </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/premises/"> Premises </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/category/blackholes/"> Quasars and 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href="/web/20220310060713/https://www.eso.org/public/images/potw/archive/year/2007/"> 2007 </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://cdn.eso.org/images/top100-original.zip"> Original TIF Zip File (50 GB) </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/copyright/"> Usage of ESO Images and Videos </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/wallpapers/"> Wallpapers </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/images/archive/zoomable/"> Zoomable </a></li> </ul> </div> </div> </li> <li><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/videos/archive/category/abouteso/"> About ESO </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/alma/"> ALMA </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/apex/"> APEX </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/compilations/"> Compilations </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/cosmology/"> Cosmology </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/elt/"> ELT </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/esocast/"> ESOcast </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/events/"> Events </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/featuremovies/"> Feature Movies </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/fulldome/"> Fulldome </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/galaxies/"> Galaxies </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/galaxyclusters/"> Galaxy Clusters </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/lasilla/"> La Silla </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/nebulae/"> Nebulae </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/paranal/"> Paranal </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/premises/"> Premises </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/blackholes/"> Quasars and Black Holes </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/solarsystem/"> Solar System </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/starclusters/"> Star Clusters </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/stars/"> Stars </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videos/archive/category/vnr/"> Video News Releases </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/copyright/"> Usage of ESO Videos and Images </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/videoformats/"> Video Formats </a></li> </ul> </div> </div> </li> <li><a href="/web/20220310060713/https://www.eso.org/public/news/">News<span class="fa 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href="/web/20220310060713/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/20220310060713/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/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/4lgsf/"> 4LGSF </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/crires/"> CRIRES </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/crires+/"> CRIRES+ </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/espresso/"> ESPRESSO </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/eris/"> ERIS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/flames/"> FLAMES </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/fors/"> FORS1 and FORS2 </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/hawk-i/"> HAWK-I </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/isaac/"> ISAAC </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/kmos/"> KMOS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/mad/"> MAD </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/moons/"> MOONS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/"> MUSE </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naco/"> NACO </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sinfoni/"> SINFONI </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sphere/"> SPHERE </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/uves/"> UVES </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vimos/"> VIMOS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/visir/"> VISIR </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/x-shooter/"> X-shooter </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/antu/"> Antu </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/kueyen/"> Kueyen </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/melipal/"> Melipal </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/yepun/"> Yepun </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/gravity/"> GRAVITY </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/matisse/"> MATISSE </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naomi/"> NAOMI </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/pionier/"> PIONIER </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/amber/"> AMBER </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/midi/"> MIDI </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vinci/"> VINCI </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/auxiliarytelescopes/"> Auxiliary Telescopes </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/mirror/"> The VISTA mirror </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/camera/"> VIRCAM </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/4most/"> 4MOST </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/surveys/"> The VISTA surveys </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/mirror/"> The VST mirrors </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/camera/"> OmegaCAM </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/speculoos/"> SPECULOOS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/ngts/"> NGTS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/paranal-observatory/cta/"> Cherenkov Telescope Array </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/swedish/simba/"> SIMBA </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/ntt/efosc2/"> EFOSC2 </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/ntt/emmi/"> EMMI </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/ntt/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/ntt/sofi/"> SOFI </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/ntt/soxs/"> SOXS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/ntt/susi2/"> SUSI and SUSI2 </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/adonis/"> ADONIS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/caspec/"> CASPEC </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/harps/"> HARPS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/mefos/"> MEFOS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/nirps/"> NIRPS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/optopus/"> OPTOPUS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/timmi2/"> TIMMI/2 </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/36-infrared-photometer-spectrophotometer/"> Infrared Photometer/Spectrophotometer </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/36-standard-photometer/"> Standard Photometer </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/infrared-specklegraph/"> Infrared Specklegraph </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/infrared-speckle-interferometer/"> Infrared Speckle Interferometer </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/36/efosc/"> EFOSC </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/mpg22/feros/"> FEROS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/mpg22/grond/"> GROND </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/mpg22/irac2/"> IRAC & IRAC2 </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/mpg22/pisco/"> PISCO </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/mpg22/wfi/"> WFI </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/swiss/coralie/"> CORALIE </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/rem/"> Rapid Eye Mount telescope </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/trappist/"> TRAnsiting Planets and PlanetesImals Small Telescope–South </a></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/danish154/coravel/"> CORAVEL </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/danish154/dfosc/"> DFOSC </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/danish154/ccd/"> CCD camera </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/danish154/hb-photometer/"> Hβ Photometer </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/danish154/two-channel-photometer/"> Two-Channel Photometer </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/danish154/four-channel-photometer/"> Four-Channel Photometer </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/tarot/"> Télescope à Action Rapide pour les Objets Transitoires </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/1mschmidt/"> ESO 1-metre Schmidt telescope </a></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/152metre/bandc/"> Boller and Chivens Spectrograph </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/152metre/coude/"> Coudé Spectrograph </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/152metre/echelec/"> ECHELEC </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/1metre/fideos/"> FIDEOS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/1metre/infrared-photometer/"> Infrared Photometer </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/05metre/single-channel-photometer/"> Single-Channel Photometer </a></li><li class=""><a href="/web/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/coude/ces/"> CES </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/marly/"> MarLy 1-metre telescope </a></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/09metre/walraven/"> Walraven Photometer </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/t70/"> Swiss T70 telescope </a></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-scanner/"> Bochum Scanner </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-photometer/"> Bochum Photometer </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/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/20220310060713/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/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/lasilla/gpo/"> Grand Prisme Objectif telescope </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/swiss04/"> Swiss 0.4-metre telescope </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/marseille/"> Marseille 0.36-metre telescope </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/grb/"> GRB Monitoring System </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/mascara/"> MASCARA </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/blackgem/"> BlackGEM </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/extra/"> ExTrA </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/lasilla/test-bed/"> Test-Bed Telescope </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/apex/apex-2a/"> APEX–2A </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/artemis/"> ArTéMiS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/aszca/"> ASZCa </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/champ-plus/"> CHAMP+ </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/concerto/"> CONCERTO </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/flash/"> FLASH </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/flash-plus/"> FLASH+ </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/laboca/"> LABOCA </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/mpi_11thz/"> MPI_1.1THz </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/p-artemis/"> P-ArTéMiS </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/pi230/"> PI230 </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/polka/"> PolKa </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/saboca/"> SABOCA </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/sepia/"> SEPIA </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/apex/shefi/"> SHeFI </a></li></ul></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/alma/antennas/"> Antennas </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/alma/transporters/"> Transporters </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/alma/interferometry/"> Interferometry </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/alma/receiver-bands/"> Receiver Bands </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/alma/residencia/"> ALMA Residencia </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/elt/"> ELT </a></li><li class="submenu"><a href="/web/20220310060713/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/20220310060713/https://www.eso.org/public/teles-instr/technology/active_optics/"> Active Optics </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/technology/adaptive_optics/"> Adaptive Optics </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/technology/ifu/"> Integral Field Units </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/technology/interferometry/"> Interferometry </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/technology/spectroscopy/"> Spectroscopy </a></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/technology/polarimetry/"> Polarimetry </a></li></ul></li><li class=""><a href="/web/20220310060713/https://www.eso.org/public/teles-instr/instruments/"> Instruments </a></li> 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