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href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/abouteso/"> Mi is az ESO? </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/alma/"> ALMA </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/apex/"> APEX </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/compilations/"> Gyűjtemények </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/cosmology/"> Kozmológia </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/elt/"> ELT </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/esocast/"> ESOcast </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/events/"> Események </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/exoplanets/"> Exobolygók </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/featuremovies/"> Filmek </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/fulldome/"> Teljes kupolás filmek </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/galaxies/"> Galaxisok </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/galaxyclusters/"> Galaxishalmazok </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/lasilla/"> La Silla </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/nebulae/"> Ködök </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/paranal/"> Paranal </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/premises/"> Épületek </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/blackholes/"> Kvazárok és fekete lyukak </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/solarsystem/"> Naprendszer </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/starclusters/"> Csillaghalmazok </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/stars/"> Csillagok </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videos/archive/category/vnr/"> Videóhír-közlemények </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/copyright/"> Usage of ESO Videos and Images </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/videoformats/"> Video 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href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2022/"> 2022 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2021/"> 2021 </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> 2011–2020 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-149" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2020/"> 2020 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2019/"> 2019 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2018/"> 2018 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2017/"> 2017 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2016/"> 2016 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2015/"> 2015 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2014/"> 2014 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2013/"> 2013 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2012/"> 2012 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2011/"> 2011 </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> 2001–2010 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-160" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2010/"> 2010 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2009/"> 2009 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2008/"> 2008 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2007/"> 2007 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2006/"> 2006 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2005/"> 2005 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2004/"> 2004 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2003/"> 2003 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2002/"> 2002 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2001/"> 2001 </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> 1991–2000 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-171" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/2000/"> 2000 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1999/"> 1999 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1998/"> 1998 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1997/"> 1997 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1996/"> 1996 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1995/"> 1995 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1994/"> 1994 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1993/"> 1993 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1992/"> 1992 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1991/"> 1991 </a></li></ul></li><li class="submenu"><a class="no-link children" href="#"> 1985–1990 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-182" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1990/"> 1990 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1989/"> 1989 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1988/"> 1988 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1987/"> 1987 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1986/"> 1986 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/archive/year/1985/"> 1985 </a></li></ul></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/announcements/"> Közlemények <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-189" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/archive/year/2022/"> 2022 </a></li><li class=""><a 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href="/web/20220303224902/https://www.eso.org/public/announcements/archive/year/2013/"> 2013 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/archive/year/2012/"> 2012 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/archive/year/2011/"> 2011 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/archive/year/2010/"> 2010 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/archive/year/2009/"> 2009 </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/news/starsateso/"> Stars@ESO </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/webupdates/"> Hírek az eso.org-on </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/outreach/pressmedia/"> Sajtószoba <span class="desktop-children topmenu-arrow fa 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Teleszkóp (VLT) <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/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/"> VLT műszerek <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/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/4lgsf/"> 4LGSF </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/crires/"> CRIRES </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/crires+/"> CRIRES+ </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/espresso/"> ESPRESSO </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/eris/"> ERIS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/flames/"> FLAMES </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/fors/"> FORS1 and FORS2 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/hawk-i/"> HAWK-I </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/isaac/"> ISAAC </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/kmos/"> KMOS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/mad/"> MAD </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/moons/"> MOONS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/muse/"> MUSE </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naco/"> NACO </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sinfoni/"> SINFONI </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/sphere/"> SPHERE </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/uves/"> UVES </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vimos/"> VIMOS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/visir/"> VISIR </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/x-shooter/"> X-shooter </a></li><li class=""><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/"> A VLT távcsövek nevei <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/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/antu/"> Antu </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/kueyen/"> Kueyen </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/melipal/"> Melipal </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-names/yepun/"> Yepun </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/gravity/"> GRAVITY </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/matisse/"> MATISSE </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/naomi/"> NAOMI </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/pionier/"> PIONIER </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/amber/"> AMBER </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/midi/"> MIDI </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/vlt-instr/vinci/"> VINCI </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/vlt/auxiliarytelescopes/"> Kiegészítő teleszkópok </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/"> Égboltfelmérő távcsövek <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/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/mirror/"> A VISTA távcsőtükre </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/camera/"> VIRCAM </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/4most/"> 4MOST </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/surveys/"> A VISTA felmérések </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vista/consortium/"> A VISTA konzorcium </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/mirror/"> A VST távcsőtükör </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/camera/"> OmegaCAM </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/surveytelescopes/vst/surveys/"> A VST égboltelmérései </a></li></ul></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/speculoos/"> SPECULOOS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/ngts/"> NGTS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/paranal-observatory/cta/"> Cherenkov Telescope Array </a></li></ul></li><li class="submenu current"><a href="/web/20220303224902/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 selected current"><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/swedish/"> Svéd-ESO szubmilliméteres távcső <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/swedish/simba/"> SIMBA </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/ntt/"> Új Technológiájú Teleszkóp (NTT) <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/ntt/efosc2/"> EFOSC2 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/ntt/emmi/"> EMMI </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/ntt/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/ntt/sofi/"> SOFI </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/ntt/soxs/"> SOXS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/ntt/susi2/"> SUSI and SUSI2 </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/"> Az ESO 3,6 m-es teleszkópja <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/adonis/"> ADONIS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/caspec/"> CASPEC </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/irspec/"> IRSPEC </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/harps/"> HARPS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/mefos/"> MEFOS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/nirps/"> NIRPS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/optopus/"> OPTOPUS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/timmi2/"> TIMMI/2 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/36-infrared-photometer-spectrophotometer/"> Infrared Photometer/Spectrophotometer </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/36-standard-photometer/"> Standard Photometer </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/infrared-specklegraph/"> Infrared Specklegraph </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/infrared-speckle-interferometer/"> Infrared Speckle Interferometer </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/36/efosc/"> EFOSC </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/mpg22/"> Az MPG/ESO 2,2 m-es távcsöve <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/mpg22/feros/"> FEROS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/mpg22/grond/"> GROND </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/mpg22/irac2/"> IRAC & IRAC2 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/mpg22/pisco/"> PISCO </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/mpg22/wfi/"> WFI </a></li><li class=""><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/swiss/"> A svájci 1,2 m-es Leonhard Euler távcső <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/swiss/coralie/"> CORALIE </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/rem/"> Rapid Eye Mount távcső </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/trappist/"> Fedési Exobolygókat és Planetezimálokat (kereső) Kis Távcső (TRAPPIST) </a></li><li class="submenu current"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/"> A dán 1,54 m-es távcső <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 selected current current-leaf"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/coravel/"> CORAVEL </a></li><li class=" current current-leaf"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/dfosc/"> DFOSC </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/ccd/"> CCD camera </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/hb-photometer/"> Hβ Photometer </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/two-channel-photometer/"> Two-Channel Photometer </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/four-channel-photometer/"> Four-Channel Photometer </a></li><li class=""><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/tarot/"> Télescope à Action Rapide pour les Objets Transitoires </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/1mschmidt/"> Az ESO 1 m-es Schmidt-távcsöve </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/152metre/"> Az ESO 1,52 m-es távcsöve <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/152metre/bandc/"> Boller and Chivens Spectrograph </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/152metre/coude/"> Coudé Spectrograph </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/152metre/echelec/"> ECHELEC </a></li><li class=""><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/1metre/"> Az ESO 1 m-es távcsöve <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/1metre/fideos/"> FIDEOS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/1metre/infrared-photometer/"> Infrared Photometer </a></li><li class=""><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/05metre/"> Az ESO 0,5 m-es távcsöve <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/05metre/single-channel-photometer/"> Single-Channel Photometer </a></li><li class=""><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/coude/"> A Coudé kiegészítő teleszkóp <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/coude/ces/"> CES </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/marly/"> Az 1 m-es MarLy teleszkóp </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/09metre/"> A holland 0,9 méteres távcső <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/09metre/walraven/"> Walraven Photometer </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/t70/"> A svájci T70 távcső </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/bochum/"> A 0,61 m-es Bochum-távcső <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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-scanner/"> Bochum Scanner </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/bochum/bochum-photometer/"> Bochum Photometer </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish05/"> A dán 0,5 m-es távcső <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/20220303224902/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/20220303224902/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/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/lasilla/gpo/"> A Nagy Objektívprizmájú Teleszkóp </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/swiss04/"> A svájci 0,4 m-es teleszkóp </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/marseille/"> A 0,36 m-es Marseille teleszkóp </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/grb/"> GRB monitorozó rendszer </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/mascara/"> MASCARA </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/blackgem/"> BlackGEM </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/extra/"> ExTrA </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/test-bed/"> Test-Bed Telescope </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/apex/apex-2a/"> APEX–2A </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/artemis/"> ArTéMiS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/aszca/"> ASZCa </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/champ-plus/"> CHAMP+ </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/concerto/"> CONCERTO </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/flash/"> FLASH </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/flash-plus/"> FLASH+ </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/laboca/"> LABOCA </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/mpi_11thz/"> MPI_1.1THz </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/p-artemis/"> P-ArTéMiS </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/pi230/"> PI230 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/polka/"> PolKa </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/saboca/"> SABOCA </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/sepia/"> SEPIA </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/apex/shefi/"> SHeFI </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/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/20220303224902/https://www.eso.org/public/teles-instr/alma/antennas/"> Antennák </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/alma/transporters/"> Szállítóeszközök </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/alma/interferometry/"> Interferometria </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/alma/receiver-bands/"> Receiver Bands </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/alma/residencia/"> ALMA Residencia </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/elt/"> ELT </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/technology/"> Távcső-technológiák <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/20220303224902/https://www.eso.org/public/teles-instr/technology/active_optics/"> Aktív optika </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/technology/adaptive_optics/"> Adaptív optika </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/technology/ifu/"> Integrálismező-egységek </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/technology/interferometry/"> Interferometria </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/technology/spectroscopy/"> Spektroszkópia </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/technology/polarimetry/"> Polarimetry </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/teles-instr/instruments/"> Instruments </a></li> </ul> </div> </div> </li> <li><a href="/web/20220303224902/https://www.eso.org/public/science/">Felfedezések<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-411" class="submenu-aim"> <li class=""><a href="/web/20220303224902/https://www.eso.org/public/science/top10/"> Az ESO 10 legfontosabb felfedezése </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/science/exoplanets/"> Exobolygók </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/science/gravitationalwaves/"> Láthatóvá váltak a gravitációshullám-források </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/science/gc/"> Fekete lyuk galaxisunk közepén </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/science/grb/"> Gammakitörések </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/science/archive/"> Tudományos archívum </a></li> </ul> </div> </div> </li> <li><a href="/web/20220303224902/https://www.eso.org/public/events/">Események<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-418" class="submenu-aim"> <li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/press-evt/"> Sajtóesemények </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/"> Különleges események <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-420" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/ann18065/"> Open House Day 2018 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/openhouse17/"> Open House Day 2017 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/ann16071/"> Open House Day 2016 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/announcements/?search=%23MeetESO"> #MeetESO </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/openhouse15/"> Long Night of Science 2015 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2014/"> ASTRONET 2014 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/openhouse14/"> Open House Day 2014 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/eeltblast/"> Az ELT forradalma </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/cafe-and-kosmos/"> Kávé és Kozmosz (Münchenben) </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/openhouse13/"> Open House Day 2013 </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/"> ASTRONET 2013 <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-431" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/dates/"> Important Dates </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/registration/"> Registration, Fees and Payment </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/abstracts/"> Abstract Submission </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/venue/"> Workshop Venue </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/practical_information/"> Practical Information </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/accommodation/"> Accommodation </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/organisers_partners/"> Organisers & Partners </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/contact/"> Kapcsolattartó </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/schedule/"> Schedule </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/astronet2013/participants/"> Participants </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/"> 50 éves az ESO <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-442" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/message/"> A főigazgató üzenete </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/50highlights50years/"> Az 50 év legkiemelkedőbb eseményei </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/competitions/"> Versenyek </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/twitter/"> Twitter Feed </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/webcast/"> Webcast </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/"> Európa a csillagokba <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-448" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/news/"> Hírek </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/movie/"> Filmek </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/book/"> Könyvek </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/reviews/"> Áttekintések </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/bios/"> Életrajzok </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/offers/"> Ajánlatok, vásárlás </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/press/"> Sajtóanyag </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years/europetothestars/contact/"> Kapcsolat </a></li></ul></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/50years-in-chile/"> 50 years of ESO in Chile </a></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/awesome-universe/"> Csodálatos Univerzum <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-458" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/awesome-universe/venues/"> Kiállítóhelyek listája </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/awesome-universe/organisers/"> Kiállítóknak </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/100ha/"> 100 óra csillagászat </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/theeye/"> A szem 3D </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/imax-hidden-universe/"> IMAX® 3D Film "A rejtett Univerzum" </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/openhouse11/"> Open House Day 2011 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/openhouse09/"> Open House Day 2009 (German) </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/outreach/bond/"> Bond at Paranal </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/openhouse/"> Open House Day 2006 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/special-evt/eso40years/"> 40 éves az ESO (1962 - 2002) </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/events/exhibitions/"> Kiállítások <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-469" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/exhibitions/perma_exhibitions/"> ESO állandó kiállítások </a></li><li class=""><a href="https://web.archive.org/web/20220303224902/http://www.esof.eu/"> EuroScience Open Forum (ESOF) </a></li><li class=""><a href="https://web.archive.org/web/20220303224902/http://eas.unige.ch/EWASS2016/"> EWASS 2016 </a></li><li class=""><a href="https://web.archive.org/web/20220303224902/https://aas.org/meetings/aas227"> AAS Winter 2016 </a></li></ul></li><li class="submenu"><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/"> Csillagászati események <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-474" class="submenu-aim sublevel"><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/solareclipse2019/"> Total Solar Eclipse 2019 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/mcnaught2007/"> The Comet McNaught 2007 </a></li><li class=""><a href="/web/20220303224902/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/20220303224902/http://www.vt-2004.org/"> The Venus Transit - 08.11.2004 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/leonids99/"> The Leonids - 17.11.1999 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/eclipse99/"> Solar Eclipse at ESO HQ - 11.08.1999 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/leonids98/"> The Leonids - 11.1998 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/pathfinder/"> Mars Pathfinder - 1997 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/hyakutake/"> Comet Hyakutake - 1997 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/sl9/"> SL-9 and Jupiter - 1994 </a></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/astro-evt/hale-bopp/"> Comet Hale Bopp - 1994 </a></li></ul></li><li class=""><a href="/web/20220303224902/https://www.eso.org/public/events/seminars/"> A csillagászat kommunikációja - szemináriumok </a></li> </ul> </div> </div> </li> <li><a href="/web/20220303224902/https://www.eso.org/public/outreach/">Ismeretterjesztés<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> 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class="page-content"> <div id="editable-content"> <h1>DFOSC</h1> <h2>Danish Faint Object Spectrograph and Camera</h2> <div style="position: relative; overflow: hidden; height: 253px; margin-bottom: 30px;"><a href="/web/20220303224902/https://www.eso.org/public/images/tewes-9861/"> <img style="position: absolute; top: -200%; left: 0; right: 0; bottom: -100%; margin: auto;" src="/web/20220303224902im_/https://www.eso.org/public/archives/images/screen/tewes-9861.jpg" alt="Catching light" border="0"/> </a></div> <div class="row"> <div class="col-md-8"> <p dir="ltr">The Danish Faint Object Spectrograph and Camera (DFOSC) is an instrument which was installed on the <a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/">Danish 1.54-metre telescope</a> at <a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/">La Silla Observatory</a> in 1992. The telescope is a Danish national facility now jointly run by Ondřejov Observatory in Czech Republic and the Niels Bohr Institute in Denmark, with on demand support from ESO.</p> <p dir="ltr">DFOSC was built as a spectrograph and camera similar to ESO’s EFOSC1 and <a href="https://web.archive.org/web/20220303224902/http://www.eso.org/public/teles-instr/lasilla/ntt/efosc2/">EFOSC2</a>. The original purpose of DFOSC was to provide a versatile instrument for the Danish community, to allow Danish astronomers to do much of the same research that was possible with the larger ESO telescopes.</p> <p dir="ltr">DFOSC initially had the ability to change between imaging and <a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/teles-instr/technology/spectroscopy/">spectroscopy</a>, and could do so within one minute. The imager had an attached focal reducer, which changed the <a href="https://web.archive.org/web/20220303224902/https://en.wikipedia.org/wiki/Focal_length">focal length</a> of the telescope and allowed for a wider field of view on the sky. In the spectroscopic mode, DFOSC could separate visible wavelengths into a spectrum to allow astronomers to determine different characteristics, like chemical composition or rotation, of astronomical objects. The spectrograph on DFOSC was decommissioned in 2003.</p> <p dir="ltr">DFOSC has allowed astronomers to make several first discoveries. In <a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/news/eso0034/">2000</a>, DFOSC helped to determine the distance to the most distant long gamma-ray burst known at the time. <a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/news/eso0533/">Five years later</a>, the visible light from a short gamma-ray burst was observed for the first time with DFOSC. In <a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/news/eso0603/">2006</a>, together with other telescopes, DFOSC contributed to the discovery of an exoplanet about five times the mass of the Earth that orbits its star around once every ten years.</p> <p dir="ltr">DFOSC has received a number of updates since seeing first light. DFOSC now uses an EMCCD, which is a detector that uses the <a href="https://web.archive.org/web/20220303224902/https://en.wikipedia.org/wiki/Lucky_imaging">lucky imaging</a> technique. With this technique, the imager takes many images per second and picks only those that are sharper than the average “seeing” at the time, which is a measure of how the atmosphere distorts the incoming light. This instrument discovered the rings around the asteroid Chariklo, which was only possible because the imager took 10 exposures per second (<a href="https://web.archive.org/web/20220303224902/http://www.eso.org/public/news/eso1410/">eso1410</a>). The instrument could be used remotely thanks to a complete renovation of the control system in 2012.</p> <p dir="ltr">Two DFOSC sister instruments were also built. One instrument was for the Instituto de Astrofísica de Andalucía (IAA), Spain, and is in operation at the <a href="https://web.archive.org/web/20220303224902/https://en.wikipedia.org/wiki/Nordic_Optical_Telescope">Nordic Optical Telescope</a>, while the other one was for the <a href="https://web.archive.org/web/20220303224902/http://www.bo.astro.it/">INAF–Bologna Astronomical Observatory</a> <a href="https://web.archive.org/web/20220303224902/http://www.bo.astro.it/">i</a>n Italy, and has been in operation since 1993 at the Loiano Site.</p> <h2>Science highlights with DFOSC</h2> <ul> <li>ESO telescopes see afterglows of elusive short gamma-ray bursts (<a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/news/eso0533/">eso0533</a>)</li> <li>First ESO image of new comet 1998 P1 (<a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/news/eso9838/">eso9838</a>)</li> <li>New discoveries about comet Hyakutake (<a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/news/eso9616/">eso9616</a>, <a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/news/eso9615/">eso9815</a>, <a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/news/eso9614/">eso9814</a>)</li> </ul> <p dir="ltr"> </p> </div> <div class="col-md-4"> <table class="table table-bordered" width="100%"> <tbody> <tr> <td> <h3>DFOSC</h3> <p><small>This table lists the global capabilities of the instrument.</small></p> <table class="table"> <tbody> <tr> <td valign="top" width="30"><strong>Location:</strong></td> <td valign="top">La Silla Observatory</td> </tr> <tr> <td valign="top" width="30"><strong>Telescope:</strong></td> <td valign="top"><a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/teles-instr/lasilla/danish154/">Danish 1.54-metre telescope</a></td> </tr> <tr> <td valign="top"><strong>Focus:</strong></td> <td valign="top">Cassegrain</td> </tr> <tr> <td valign="top"><strong>Type:</strong></td> <td valign="top"> <p dir="ltr">Visible Imager with focal reducer</p> <p dir="ltr">Visible spectrograph (decommissioned)</p> </td> </tr> <tr> <td valign="top"><strong>Wavelength range:</strong></td> <td valign="top">320–1000 nm</td> </tr> <tr> <td valign="top"><strong>Spatial resolution:</strong></td> <td valign="top">Seeing limited with 0.4" pixels, typical seeing 0.8"</td> </tr> <tr> <td valign="top"><strong>Spectral resolution:</strong></td> <td valign="top"> </td> </tr> <tr> <td valign="top"><strong>First light:</strong></td> <td valign="top"><a href="https://web.archive.org/web/20220303224902/https://www.eso.org/sci/publications/messenger/archive/no.79-mar95/messenger-no79-12-14.pdf">December 1992</a></td> </tr> <tr> <td valign="top"><strong>Science goal:</strong></td> <td valign="top"> <ul> <li>Spectroscopy of galaxies and QSO’s</li> <li>Elliptical galaxies</li> <li>Photometry</li> <li>Stellar populations</li> <li>Comets</li> </ul> </td> </tr> <tr> <td valign="top"><strong>Images taken with the instrument:</strong></td> <td valign="top"><a href="/web/20220303224902/https://www.eso.org/public/images/archive/search/?instrument=21">Link</a></td> </tr> <tr> <td valign="top"><strong>Images of the <strong>instrument</strong>:</strong></td> <td valign="top"><a href="https://web.archive.org/web/20220303224902/https://www.eso.org/public/images/archive/search/?subject_name=Danish%20Faint%20Object%20Spectrograph%20and%20Camera">Link</a></td> </tr> <tr> <td valign="top"><strong>Press Releases with the <strong>instrument</strong>:</strong></td> <td valign="top"><a href="/web/20220303224902/https://www.eso.org/public/news/archive/search/?published_until_year=0&published_until_day=0&description=&title=&instruments=21&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>Consortium:</strong></td> <td valign="top"> <ul> <li><a href="https://web.archive.org/web/20220303224902/http://www.nbi.ku.dk/english/" target="_blank" rel="noopener">Niels Bohr Institute</a> (Denmark) with funding from the Carlsberg Foundation</li> </ul> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </div> </div> </div> </div> </div> </div> </div> <!-- #body --> <div class="row footernote"> <div class="col-xs-12 col-md-3"> <a href="https://web.archive.org/web/20220303224902/mailto:information@eso.org">Send us your comments!</a> </div> <div class="col-xs-12 col-md-3"> <a href="/web/20220303224902/https://www.eso.org/public/outreach/newsletters/esonews/">Subscribe to receive news from ESO in your language</a> </div> <div class="col-xs-12 col-md-3"> <a href="https://web.archive.org/web/20220303224902/https://www.cdn77.com/">Accelerated by CDN77</a> </div> <div class="col-xs-12 col-md-3"> <a 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