Comparison of nominal sizes of apertures of the above extremely large telescopes and some notable optical telescopes An extremely large telescope (ELT) is an astronomical observatory featuring an optical telescope with an aperture for its primary mirror from 20 metres up to 100 metres across, [1][2] when discussing reflecting telescopes of optical wavelengths including …

2025年3月24日 · The European Extremely Large Telescope (ELT) is a revolutionary scientific project for a 40m-class telescope that will allow us to address many of the most pressing unsolved questions about our Universe.

2025年3月23日 · The Extremely Large Telescope: The World's Biggest Eye On The Sky

2024年7月29日 · Stephane Udry et al, ‘Exoplanet Science with the European Extremely Large Telescope. The Case for Visible and Near-IR Spectroscopy at High Resolution' (2014), https://arxiv.org/abs/1412.1048

E-ELT 40-m class telescope: largest optical-infrared telescope in the world.

Between the end of 2010 and the summer 2011, the E-ELT project extended the detailed design phase in order to consider the recommendations of the E-ELT Design Review, and in June 2011 the ESO Council endorsed a revised baseline design for the E-ELT. The overall concept of the 40-metre-class telescope remains unchanged. A slight reduction of the diameter of the primary …

2025年3月15日 · This will be achieved with a revolutionary new ground­based telescope, the European Extremely Large Telescope (E­ELT), with a performance that is orders of magnitude better than currently existing facilities.

The Telescope The Extremely Large Telescope (ELT) will be the largest optical and infra-red telescope ever built. Scientists and engineers from all over Europe are working on plans for a telescope with a mirror that is over 39 metres in diameter. The area of this mirror is larger than the combined reflecting area of all the major research telescopes currently in existence. This …

The Extremely Large Telescope: The World's Biggest Eye On The Sky

2024年3月23日 · The European Extremely Large Telescope (E-ELT) is a revolutionary ground-based telescope currently under construction by the European Southern Observatory (ESO).