Extremely large telescope
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An extremely large telescope (ELT) is a telescope of more than 20 m diameter.[1] There are currently ten such telescopes in various stages of design or construction:
- E-ELT: European Extremely Large Telescope
- JELT: Japanese ELT Project
- TMT: Thirty Meter Telescope
- GSMT: Giant Segmented Mirror Telescope
- OWL: Overwhelmingly Large Telescope
- GMT: Giant Magellan Telescope
- VLOT: Very Large Optical Telescope
- LAT: Large Atacama Telescope
- EURO50: European 50-metre Telescope
- LPT: Large Petal Telescope
These telescopes have a number of features in common, in particular the use of a segmented primary mirror (similar to the existing Keck telescopes), and the use of high-order adaptive optics systems.
[edit] References
- ^ See title of http://www.astro-opticon.org/fp5/skelcase.html and section 1 of http://www.aao.gov.au/instrum/ELT/ELTroadmap040917.pdf
[edit] External links
- Australian National Workshop on Extremely Large Telescopes (ELTs)
- The OPTICON ELT Working Group a Europe-wide research project
- The science case for Extremely Large Telescopes (ELTs) from the Royal Observatory, Edinburgh
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