UVES | ESO

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class="level1 current"> <ul id="submenu-aim-244" class="submenu-aim selected current"> <li class="submenu current"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/"> Paranal Observatory <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-245" class="submenu-aim sublevel selected current"><li class="submenu current"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/"> Very Large Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-246" class="submenu-aim sublevel selected current"><li class="submenu current"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/"> VLT Instruments <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-247" class="submenu-aim sublevel selected current current-leaf"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/4lgsf/"> 4LGSF </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/amber/"> AMBER </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/crires/"> CRIRES </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/espresso/"> ESPRESSO </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/eris/"> ERIS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/flames/"> FLAMES </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/fors/"> FORS1 and FORS2 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/gravity/"> GRAVITY </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/hawk-i/"> HAWK-I </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/isaac/"> ISAAC </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/kmos/"> KMOS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/mad/"> MAD </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/matisse/"> MATISSE </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/midi/"> MIDI </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/moons/"> MOONS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/"> MUSE </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naco/"> NACO </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naomi/"> NAOMI </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/pionier/"> PIONIER </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sinfoni/"> SINFONI </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sphere/"> SPHERE </a></li><li class=" current current-leaf"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/uves/"> UVES </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vimos/"> VIMOS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/visir/"> VISIR </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/x-shooter/"> X-shooter </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vtl-test-cameras/"> VLT Test Cameras </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vinci/"> VINCI </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/"> VLT Unit Telescopes Names <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-275" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/antu/"> Antu </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/kueyen/"> Kueyen </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/melipal/"> Melipal </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/yepun/"> Yepun </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/auxiliarytelescopes/"> Auxiliary Telescopes </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/"> Survey Telescopes <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-281" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/"> VISTA <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-282" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/mirror/"> The VISTA mirror </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/camera/"> VIRCAM </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/4most/"> 4MOST </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/surveys/"> The VISTA surveys </a></li><li class=""><a href="/web/20210201045744/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/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/"> VST <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-288" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/mirror/"> The VST mirrors </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/camera/"> OmegaCAM </a></li><li class=""><a href="/web/20210201045744/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/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/speculoos/"> SPECULOOS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/ngts/"> NGTS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal-observatory/cta/"> Cherenkov Telescope Array </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/"> La Silla Observatory <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-295" class="submenu-aim sublevel"><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/swedish/"> Swedish–ESO Submillimetre Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-296" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/swedish/simba/"> SIMBA </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/ntt/"> New Technology Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-298" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/ntt/efosc2/"> EFOSC2 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/ntt/emmi/"> EMMI </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/ntt/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/ntt/sofi/"> SOFI </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/ntt/soxs/"> SOXS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/ntt/susi2/"> SUSI and SUSI2 </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/"> ESO 3.6-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-305" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/adonis/"> ADONIS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/caspec/"> CASPEC </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/harps/"> HARPS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/mefos/"> MEFOS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/nirps/"> NIRPS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/optopus/"> OPTOPUS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/timmi2/"> TIMMI/2 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/36-infrared-photometer-spectrophotometer/"> Infrared Photometer/Spectrophotometer </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/36-standard-photometer/"> Standard Photometer </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/infrared-specklegraph/"> Infrared Specklegraph </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/infrared-speckle-interferometer/"> Infrared Speckle Interferometer </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/36/efosc/"> EFOSC </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/mpg22/"> MPG/ESO 2.2-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-319" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/mpg22/feros/"> FEROS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/mpg22/grond/"> GROND </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/mpg22/irac2/"> IRAC & IRAC2 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/mpg22/pisco/"> PISCO </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/mpg22/wfi/"> WFI </a></li><li class=""><a href="/web/20210201045744/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/20210201045744/https://www.eso.org/public/teles-instr/lasilla/swiss/"> Swiss 1.2-metre Leonhard Euler Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-326" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/swiss/coralie/"> CORALIE </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/rem/"> Rapid Eye Mount telescope </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/trappist/"> TRAnsiting Planets and PlanetesImals Small Telescope–South </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/danish154/"> Danish 1.54-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-330" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/danish154/coravel/"> CORAVEL </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/danish154/dfosc/"> DFOSC </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/danish154/ccd/"> CCD camera </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/danish154/hb-photometer/"> Hβ Photometer </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/danish154/two-channel-photometer/"> Two-Channel Photometer </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/danish154/four-channel-photometer/"> Four-Channel Photometer </a></li><li class=""><a href="/web/20210201045744/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/20210201045744/https://www.eso.org/public/teles-instr/lasilla/tarot/"> Télescope à Action Rapide pour les Objets Transitoires </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/1mschmidt/"> ESO 1-metre Schmidt telescope </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/152metre/"> ESO 1.52-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-340" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/152metre/bandc/"> Boller and Chivens Spectrograph </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/152metre/coude/"> Coudé Spectrograph </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/152metre/echelec/"> ECHELEC </a></li><li class=""><a href="/web/20210201045744/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/20210201045744/https://www.eso.org/public/teles-instr/lasilla/1metre/"> ESO 1-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-345" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/1metre/fideos/"> FIDEOS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/1metre/infrared-photometer/"> Infrared Photometer </a></li><li class=""><a href="/web/20210201045744/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/20210201045744/https://www.eso.org/public/teles-instr/lasilla/05metre/"> ESO 0.5-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-349" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/05metre/single-channel-photometer/"> Single-Channel Photometer </a></li><li class=""><a href="/web/20210201045744/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/20210201045744/https://www.eso.org/public/teles-instr/lasilla/coude/"> Coudé Auxiliary Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-352" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/coude/ces/"> CES </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/marly/"> MarLy 1-metre telescope </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/09metre/"> Dutch 0.9-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-355" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/09metre/walraven/"> Walraven Photometer </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/t70/"> Swiss T70 telescope </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/bochum/"> Bochum 0.61-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-358" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-scanner/"> Bochum Scanner </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-photometer/"> Bochum Photometer </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/danish05/"> Danish 0.5-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-361" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/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/20210201045744/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/20210201045744/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/20210201045744/https://www.eso.org/public/teles-instr/lasilla/gpo/"> Grand Prisme Objectif telescope </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/swiss04/"> Swiss 0.4-metre telescope </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/marseille/"> Marseille 0.36-metre telescope </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/grb/"> GRB Monitoring System </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/mascara/"> MASCARA </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/blackgem/"> BlackGEM </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/extra/"> ExTrA </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/lasilla/test-bed/"> Test-Bed Telescope </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/"> APEX <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-373" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/artemis/"> ArTéMiS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/laboca/"> LABOCA </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/saboca/"> SABOCA </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/sepia/"> SEPIA </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/apex-2a/"> APEX–2A </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/aszca/"> ASZCa </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/champ-plus/"> CHAMP+ </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/flash/"> FLASH </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/flash-plus/"> FLASH+ </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/mpi_11thz/"> MPI_1.1THz </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/p-artemis/"> P-ArTéMiS </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/pi230/"> PI230 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/polka/"> PolKa </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/apex/shefi/"> SHeFI </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/alma/"> ALMA <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-388" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/alma/antennas/"> Antennas </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/alma/transporters/"> Transporters </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/alma/interferometry/"> Interferometry </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/alma/receiver-bands/"> Receiver Bands </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/alma/residencia/"> ALMA Residencia </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/elt/"> ELT </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/technology/"> Technology for Telescopes <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-395" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/technology/active_optics/"> Active Optics </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/technology/adaptive_optics/"> Adaptive Optics </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/technology/ifu/"> Integral Field Units </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/technology/interferometry/"> Interferometry </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/technology/spectroscopy/"> Spectroscopy </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/teles-instr/instruments/"> Instruments </a></li> </ul> </div> </div> </li> <li><a href="/web/20210201045744/https://www.eso.org/public/science/">Discoveries<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-402" class="submenu-aim"> <li class=""><a href="/web/20210201045744/https://www.eso.org/public/science/top10/"> ESO Top 10 Astronomical Discoveries </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/science/exoplanets/"> Exoplanets </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/science/gravitationalwaves/"> Gravitational Wave Sources </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/science/gc/"> Black Hole at the Centre of our Galaxy </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/science/grb/"> Gamma-Ray Bursts </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/science/archive/"> Science Archive </a></li> </ul> </div> </div> </li> <li><a href="/web/20210201045744/https://www.eso.org/public/events/">Events<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-409" class="submenu-aim"> <li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/press-evt/"> Press Events </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/"> Special Events <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-411" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/announcements/ann18065/"> Open House Day 2018 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/asteroid-day/"> Asteroid Day </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse17/"> Open House Day 2017 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/announcements/ann16071/"> Open House Day 2016 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/MeetESO/"> #MeetESO </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse15/"> Long Night of Science 2015 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/astronet2014/"> ASTRONET 2014 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse14/"> Open House Day 2014 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/eeltblast/"> ELT Groundbreaking </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/cafe-and-kosmos/"> Café & Kosmos in Munich </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse13/"> Open House Day 2013 </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/astronet2013/"> ASTRONET 2013 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-423" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/astronet2013/dates/"> Important Dates </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/astronet2013/registration/"> 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href="/web/20210201045744/https://www.eso.org/public/events/special-evt/awesome-universe/"> Awesome Universe <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-450" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/awesome-universe/venues/"> List of venues </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/awesome-universe/organisers/"> For Exhibitors </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/iya2009/"> IYA 2009 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/100ha/"> 100 Hours of Astronomy </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/theeye/"> The Eye 3D </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/imax-hidden-universe/"> IMAX® 3D Film Hidden Universe </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse11/"> Open House Day 2011 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse09/"> Open House Day 2009 (German) </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/bond/"> Bond at Paranal </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/lndw-2007eng/"> Long Night of Science 2007 </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse/"> Open House Day 2006 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-461" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse/ohd06-winnerslist/"> List of Prize Winners </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse/tdot06/"> Deutsche Fassung </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/openhouse/tdot06-gewinnerliste/"> Liste der Preisgewinner </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/pt-011203/"> Public Talks 2003 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/special-evt/eso40years/"> ESO 40 Years (1962 - 2002) </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/events/exhibitions/"> Exhibitions <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-467" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/exhibitions/perma_exhibitions/"> ESO Permanent Exhibitions </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/http://www.esof.eu/"> EuroScience Open Forum (ESOF) </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/http://eas.unige.ch/EWASS2016/"> EWASS 2016 </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/https://aas.org/meetings/aas227"> AAS Winter 2016 </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/"> Astronomical Events <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-472" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/solareclipse2019/"> Total Solar Eclipse 2019 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/mcnaught2007/"> The Comet McNaught 2007 </a></li><li class=""><a href="/web/20210201045744/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/20210201045744/http://www.vt-2004.org/"> The Venus Transit - 08.11.2004 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/leonids99/"> The Leonids - 17.11.1999 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/eclipse99/"> Solar Eclipse at ESO HQ - 11.08.1999 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/leonids98/"> The Leonids - 11.1998 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/pathfinder/"> Mars Pathfinder - 1997 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/hyakutake/"> Comet Hyakutake - 1997 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/sl9/"> SL-9 and Jupiter - 1994 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/astro-evt/hale-bopp/"> Comet Hale Bopp - 1994 </a></li></ul></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/events/seminars/"> Astronomy Communication Seminars </a></li> </ul> </div> </div> </li> <li><a href="/web/20210201045744/https://www.eso.org/public/outreach/">Outreach<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-485" class="submenu-aim"> <li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/"> Education <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-486" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/products/education/"> Educational Material </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/http://www.scienceinschool.org/" target="_blank"> Science in School </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/http://www.sterrenlab.com/camps/eso-astronomy-camp-2017/"> ESO Astronomy Camp 2017 </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/https://web.archive.org/web/20190722044743/http://www.sterrenlab.com/camps/eso-astronomy-camp-2016/"> ESO Astronomy Camp 2016 </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/https://web.archive.org/web/20190810160701/http://www.sterrenlab.com/camps/eso-astronomy-camp-2015/"> ESO Astronomy Camp 2015 </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/https://web.archive.org/web/20190321214717/http://www.sterrenlab.com/camps/eso-astronomy-camp-2014/"> ESO Astronomy Camp 2014 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/teacherschools/"> Teacher Schools </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/prev-programmes/"> Previous Programmes <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-494" class="submenu-aim sublevel"><li class=""><a href="https://web.archive.org/web/20210201045744/http://www.eaae-astronomy.org/catchastar/cas2013"> Catch a Star 2013 </a></li><li class=""><a href="https://web.archive.org/web/20210201045744/http://www.eaae-astronomy.org/catchastar/cas2011"> Catch a Star 2011 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/cas/cas2008/"> Catch a Star 2008 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/cas/cas2007/"> Catch a Star 2007 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/cas/cas2005/"> Catch a Star 2005 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/cas/cas2004/"> Catch a Star 2004 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/cas/cas2003/"> Catch a Star 2003 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/cas/cas2002/"> Catch a Star 2002 </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/liu/"> Life in the Universe </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/pos/"> Physics On Stage </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/eduoff/seaspace/docs/"> Sea & Space </a></li></ul></li><li class=""><a href="https://web.archive.org/web/20210201045744/http://kids.alma.cl/?lang=en"> ALMA Kids </a></li></ul></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/outreach/partnerships/"> Partnerships <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-507" class="submenu-aim sublevel"><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/partnerships/translators/"> Volunteer Translators </a></li><li class=""><a href="/web/20210201045744/https://www.eso.org/public/outreach/partnerships/eson/"> ESO Science Outreach Network </a></li><li class="submenu"><a href="/web/20210201045744/https://www.eso.org/public/outreach/partnerships/chile/"> Collaborations in Chile <span 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role="alert" style="display: none"> <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button> Page saved successfully </div> <div id="page-edit-failure" class="alert alert-danger alert-dismissible" role="alert" style="display: none"> <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button> Couldn't save page :( Please try again. </div> </div> <div class="page-content"> <div id="editable-content"> <h1>UVES</h1> <h2>Ultraviolet and Visual Echelle Spectrograph</h2> <p><a href="/web/20210201045744/https://www.eso.org/public/images/eso9951e/"><img src="/web/20210201045744im_/https://www.eso.org/public/archives/static/teles-instr/vlt/images/eso9951e_pano.jpg" border="0"/></a></p> <div class="row"> <div class="col-md-8"> <p><em><a href="/web/20210201045744/https://www.eso.org/public/images/eso9944c/"><img style="float: left; padding: 7px 20px 10px 0px;" src="/web/20210201045744im_/https://www.eso.org/public/archives/images/potwmedium/eso9944c.jpg" border="0"/></a></em></p> <p>Think of a tree, where the trunk splits into two main branches and each branch fans out into several smaller branches. Imagine now that the trunk is actually a beam of visible light, and the first split divides the light into red and blue colours. The light is further fanned out at every “branch” and “twig” as it passes through a prism, smearing the colours, so that the “leaves” — the end stage of the branching — form a beautiful rainbow.</p> <p>You have just visualised the basics of what happens inside a cross-dispersion echelle spectrograph like UVES, which has been placed at the Nasmyth B focus of Unit Telescope 2 (UT2, Kueyen) of the Very Large Telescope at Paranal Observatory. The cultivator of this instrument, Lorenzo Monaco, ensures that UVES keeps blooming year after year.</p> <p><a href="/web/20210201045744/https://www.eso.org/public/images/uves_startup_dec04/"><img style="float: right; padding: 7px 0px 10px 20px;" src="/web/20210201045744im_/https://www.eso.org/public/archives/images/potwmedium/uves_startup_dec04.jpg" width="220" height="140" border="0"/></a>Inside UVES, the incoming beam of light is sent to either a blue (UV-to-blue) or a red (visible-to-red) arm — the two branches. Each of these arms goes through two perpendicular gratings, and each grating has a number of grooves which spread out the light by diffraction — the twigs. The larger the number of grooves at each branch, the stronger the variation in the colours between UVES’s “leaves”. This results in high spectral resolution.</p> <p>When combined with the fibre system <a href="/web/20210201045744/https://www.eso.org/public/teles-instr/vlt/vlt-instr/flames/">FLAMES</a> (another spectrograph installed on UT2), UVES transforms from a single tree into a clump of trees! The two instruments together can provide this kind of high resolution spectroscopy for up to eight different objects at the same time through fibres fed through the red arm. <em>“UVES is then a multi-purpose instrument capable of handling a wide variety of astronomical topics, ranging from Solar System objects to the most distant Universe,”</em> says Lorenzo. <em>“If you need high resolution to observe faint objects, UVES is most likely the instrument you are looking for.” </em></p> <p>UVES has provided us with a forest-full of detailed spectroscopic data of an impressive variety of objects — from stars inside our galaxy, the Milky Way, to distant galaxies and gamma-ray bursts. For example, Lorenzo tells us that <em>“over the years, UVES observations were extremely important in the study and characterisation of the most metal-poor stars in the Universe. These objects are among the first generations of stars to have formed and provide information about the conditions of the early Universe.” </em>With discoveries like these, the importance of UVES will only grow further!</p> <h2>Science highlights with UVES</h2> <ul> <li>Remains of a fatal interaction between a dead star and its asteroid supper studied in detail for the first time (<a href="https://web.archive.org/web/20210201045744/https://www.eso.org/public/news/eso1544/">eso1544</a>)</li> <li>UVES finds the oldest solar twin to date (<a href="/web/20210201045744/https://www.eso.org/public/news/eso1337/">eso1337</a>)</li> <li>Best direct observational evidence found so far supporting the theory that galaxies pull in and devour nearby material in order to grow and form stars (<a href="https://web.archive.org/web/20210201045744/https://www.eso.org/public/news/eso1330/">eso1330</a>)</li> <li>UVES helps us realise that the brightest stars always come in interacting pairs (<a href="https://web.archive.org/web/20210201045744/https://www.eso.org/public/news/eso1230/">eso1230</a>)</li> <li>A molecular thermometer determines that the temperature of the Universe 11 billion years ago was -264 degrees C (<a href="/web/20210201045744/https://www.eso.org/public/news/eso0813/">eso0813</a>)</li> <li>The most luminous object ever observed in the Universe is observed and found to be 7.5 billion light-years away (<a href="/web/20210201045744/https://www.eso.org/public/news/eso0808/">eso0808</a>)</li> </ul> <table border="0" width="100%" cellpadding="2"> <tbody> <tr valign="Top"> <td> <p style="text-align: center;"><a href="/web/20210201045744/https://www.eso.org/public/images/eso9944b/"><img class="nopadding" src="/web/20210201045744im_/https://www.eso.org/public/archives/images/medium/eso9944b.jpg" width="320" height="323" border="0"/></a></p> <p style="text-align: justify;"><small>This shows the raw image, as read from one of the detectors in UVES, with the recorded spectrum of famous supernova SN1987A. With this technique, the supernova spectrum is divided into many individual parts (spectral orders, each of which appears as a narrow horizontal line) that cover wavelengths ranging from the blue (at the bottom) to the red (at the top). Many bright emission lines from different elements are visible, e.g., the strong H-alpha line from hydrogen near the centre of the fourth order from the top. The pseudocolour image further up this page is a small section of this spectrum.</small></p> </td> </tr> </tbody> </table> </div> <div class="col-md-4"> <table class="table table-bordered" width="100%"> <tbody> <tr> <td> <h3>UVES</h3> <p>The authoritative technical specifications as offered for astronomical observations are available from the <a href="/web/20210201045744/https://www.eso.org/sci/facilities/paranal/instruments/uves.html">Science Operation page</a>.</p> <table class="table"> <tbody> <tr> <td valign="top" width="30%"><strong>Site:</strong></td> <td valign="top">Paranal</td> </tr> <tr> <td valign="top"><strong>Telescope:</strong></td> <td valign="top">VLT <a href="/web/20210201045744/https://www.eso.org/public/teles-instr/paranal/">UT2</a></td> </tr> <tr> <td valign="top"><strong>Focus:</strong></td> <td valign="top">Nasmyth B</td> </tr> <tr> <td valign="top"><strong>Type:</strong></td> <td valign="top">Cross-dispersed echelle spectrograph</td> </tr> <tr> <td valign="top"><strong>Wavelength coverage:</strong></td> <td valign="top">300–500 nm (blue arm)<br/>420–1100 nm (red arm)</td> </tr> <tr> <td valign="top"><strong>Spatial resolution:</strong></td> <td valign="top">Seeing limited spectrograph; 0.16 arcseconds (blue arm) — 0.22 arcseconds (red arm) per pixel</td> </tr> <tr> <td valign="top"><strong>Spectral resolution:</strong></td> <td valign="top">up to 80 000 (blue arm) — 110 000 (red arm); <br/>47 000 with <a href="/web/20210201045744/https://www.eso.org/public/teles-instr/vlt/vlt-instr/flames/">FLAMES</a></td> </tr> <tr> <td valign="top"><strong>First light date:</strong></td> <td valign="top">September 1999<br/>(<a href="/web/20210201045744/https://www.eso.org/public/news/eso9944/">eso9944</a>)</td> </tr> <tr> <td valign="top"><strong>Images taken with the instrument:</strong></td> <td valign="top"><a href="/web/20210201045744/https://www.eso.org/public/images/archive/search/?adv=&instrument=11">Link</a></td> </tr> <tr> <td valign="top"><strong>Images of the instrument:</strong></td> <td valign="top"><a href="/web/20210201045744/https://www.eso.org/public/images/archive/search/?&subject_name=UVES">Link</a></td> </tr> <tr> <td valign="top"> <p><strong>Videos of the instrument:</strong></p> </td> <td valign="top"> <p><a href="/web/20210201045744/https://www.eso.org/public/videos/archive/search/?subject_name=UVES">Link</a></p> </td> </tr> <tr> <td valign="top"><strong>Press Releases with the instrument:</strong></td> <td valign="top"><a href="/web/20210201045744/https://www.eso.org/public/news/archive/search/?published_until_year=0&published_until_day=0&description=&title=&instruments=11&subject_name=&published_since_day=0&published_since_month=0&published_until_month=0&id=&published_since_year=0">Link</a></td> </tr> <tr> <td valign="top"><strong>Data papers:</strong></td> <td valign="top"> <p><a href="https://web.archive.org/web/20210201045744/http://telbib.eso.org/index.php?&fq[]=instrument:UVES">Link</a></p> <p><a href="https://web.archive.org/web/20210201045744/http://www.eso.org/sci/observing/policies/publications.html">ESO data citation policy</a></p> </td> </tr> <tr> <td valign="top"><strong>Science goals: </strong></td> <td valign="top">Spectroscopic properties of faint stars and galaxies in the Universe.</td> </tr> <tr> <td valign="top"> <p><strong>Consortium:</strong></p> </td> <td valign="top"> <p>Observatory of Trieste, Italy.</p> <p>ESO</p> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </div> </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/20210201045744/mailto:information@eso.org">Send us your comments!</a> </div> <div class="col-xs-12 col-md-3"> <a href="/web/20210201045744/https://www.eso.org/public/outreach/newsletters/esonews/">Subscribe to receive news 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