The New E ELT Design Unveiled

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• published: 25 May 2016
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The European Extremely Large Telescope (E-ELT), with a main mirror 39 metres in diameter, will be the largest optical/near-infrared telescope in the world: truly the world’s biggest eye on the sky. It will be constructed in northern Chile, on a site that has already been prepared. The contract to build the telescope’s dome and structure was signed by ESO’s Director General, Tim de Zeeuw, the Chairman of Astaldi, Paolo Astaldi, and the President of Cimolai, Luigi Cimolai. ESO was delighted to welcome Italy’s Minister of Education, Universities and Research, H.E. Stefania Giannini, to the ceremony, which was also attended by the Italian Consul General in Munich, Renato Cianfarani, the ESO Council President, Patrick Roche, and the Italian ESO Council Delegates, Nicolò D’Amico (who is also President of INAF) and Matteo Pardo, Scientific Attaché at the Italian Embassy in Berlin. The President of EIE, Gianpietro Marchiori, and other guests and representatives of the consortium were also present. The contract covers the design, manufacture, transport, construction, on-site assembly and verification of the dome and telescope structure. With an approximate value of 400 million euros, it is the largest contract ever awarded by ESO and the largest contract ever in ground-based astronomy. The E-ELT dome and telescope structure will take telescope engineering into new territory. The contract includes not only the enormous 85-metre-diameter rotating dome, with a total mass of around 5000 tonnes, but also the telescope mounting and tube structure, with a total moving mass of more than 3000 tonnes. Both of these structures are by far the largest ever built for an optical/infrared telescope and dwarf all existing ones. The dome is almost 80 metres high and its footprint is comparable in area to a football pitch. The E-ELT is being built on Cerro Armazones, a 3000-metre peak about 20 kilometres from ESO’s Paranal Observatory. The access road and leveling of the summit have already been completed and work on the dome is expected to start on site in 2017. Many other aspects of the construction of the E-ELT are also moving forward rapidly. ESO has already signed agreements for the construction of the first-light instruments MICADO, HARMONI and METIS, as well as the MAORY adaptive optics system for the E-ELT. Contracts for the telescope’s huge secondary mirror will be signed in the near future. The light-collecting area of the E-ELT will be bigger than all existing optical research telescopes combined and its adaptive optics system will provide images about 15 times sharper than those from the NASA/ESA Hubble Space Telescope at the same wavelength. It offers numerous possibilities for technology and engineering spin-offs, technology transfer and technology contracting. The new contract demonstrates that the E-ELT has the potential to be a powerhouse for economic development, offering contractors in ESO’s Member States an opportunity to lead major projects at an international level. Credit: European Southern Observatory (ESO). Editing: Herbert Zodet. Web and technical support: Mathias André and Raquel Yumi Shida. Written by: Peter Grimley and Richard Hook. Narration: Sara Mendes da Costa. Music: Toomas Erm and Johan B. Monell (http://www.johanmonell.com/). Footage and photos: ESO, L. Calçada, M. Kornmesser, ACe Consortium, M. Struik (CERN), ICAFAL/BROTEC Construcción, Microgate/ADS, G. Hüdepohl (http://www.atacamaphoto.com), AdOptica,NOVA/METIS/MAORY/MICADO consortium, HARMONI consortium, ESA/Hubble, Theofanis N. Matsopoulos and C. Malin (http://christophmalin.com/). Directed by: Herbert Zodet. Executive producer: Lars Lindberg Christensen. ------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------- Twitter: https://twitter.com/Cloud_Tube Google +: https://plus.google.com/+CloudTubeFliX Blogger: http://www.cloudtubeblog.com/