European Extremely Large Telescope


European Extremely Large Telescope

Infobox Telescope
bgcolour =
name = European Extremely Large Telescope (E-ELT)


caption =
organization = ESO
location = Probably Chile or Roque de los Muchachos at the Canary Islands
coords =
altitude =
weather =
wavelength = Optical, near infrared
built = Planned completion: 2017
website = http://www.eso.org/public/astronomy/projects/e-elt.html
style = Reflector
diameter = convert|42|m|ft|abbr=on|lk=off
angular_resolution = 0.001 to 0.6 arcseconds depending on target and instruments used
area =
focal_length = 420-840 m (f/10 - f/20)
mounting = Alt/az
dome = Spherical
The European Extremely Large Telescope (E-ELT) is an extremely large telescope design proposed for the next-generation European Southern Observatory optical telescope with a mirror diameter of convert|42|m|ft|abbr=off|lk=off. ESO is focusing on this design after a feasibility study concluded that the proposed convert|100|m|ft|abbr=off|lk=off diameter Overwhelmingly Large Telescope would cost $1.5 billion (£1 billion), and be too complex.

Current fabrication technology limits single mirrors to being roughly 8 meters in a single piece. The next-largest telescopes currently in use are the Gran Telescopio Canarias and Southern African Large Telescope, which each use hexagonal mirrors fitted together to make a mirror more than 10 meters across. The ELT would need to use a similar design. In addition, ELT would also need to use techniques to work around atmospheric distortion of incoming light, known as adaptive optics.

Project E-ELT has the aim of observing the Universe in greater detail than even the Hubble Space Telescope. A mirror of approximately 42 meters would allow the study of the atmospheres of extrasolar planets. The 5-mirror anastigmat design is estimated to cost €800 million and could be completed by 2017. [cite press release |title=ESO Council Gives Green Light to Detailed Study of the European Extremely Large Telescope |url=http://www.spaceref.com/news/viewpr.html?pid=21445 |publisher=European Southern Observatory |date=2006-12-11 |accessdate= ]

Location

Sites under discussion include Cerro Macon, Salta, at Argentina, Roque de los Muchachos Observatory, at the Canary Islands, South Africa, Chile, Morocco,and Antarctica.

ee also

*Overwhelmingly Large Telescope
*Thirty Meter Telescope
*Giant Magellan Telescope
*Large Binocular Telescope
*Darwin (ESA)

References

External links

* [http://news.bbc.co.uk/2/hi/science/nature/6176185.stm Final stage for telescope design]
* [http://www.theregister.co.uk/2005/04/11/test_design_elt/ Green light for ELT]
* [http://news.bbc.co.uk/1/hi/sci/tech/4426535.stm Ground Telescope to Super Size]
* [http://news.bbc.co.uk/1/hi/sci/tech/5252228.stm "Record mirror for Euro telescope" BBC Online August 7 2006]
* [http://www.spaceref.com/news/viewpr.html?pid=21445 "ESO Council Gives Green Light to Detailed Study of the European Extremely Large Telescope" Spaceref.com]
* [http://www.eso.org/public/astronomy/projects/e-elt.html ESO European Extremely Large Telescope]


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • European Extremely Large Telescope — Vue d artiste de l’European Extremely Large Telescope. Caractéristiques Organisation …   Wikipédia en Français

  • European Extremely Large Telescope — Vergleich einer Studie zum 39 m E ELT mit einem Unit Telescope des Paranal Observatoriums mit 8,2 m Spiegel Durchmesser …   Deutsch Wikipedia

  • Extremely large telescope — An extremely large telescope (ELT) is a telescope of more than 20 m diameter. [See title of http://www.astro opticon.org/fp5/skelcase.html and section 1 of http://www.aao.gov.au/instrum/ELT/ELTroadmap040917.pdf] There are currently ten such… …   Wikipedia

  • Extremely Large Telescope — L Extremely Large Telescope est une série de grands télescopes Les télescopes Nom Image Diamètre (m) Equiv. ap. area Surface (m2) Miroir M1 Note European Extremely Large Telescope (E ELT) 39.3 39.3 978 m2 …   Wikipédia en Français

  • Overwhelmingly Large Telescope — Organization European Southern Observatory Wavelength In …   Wikipedia

  • OverWhelming Large Telescope — Overwhelmingly Large Telescope (OWL) war der Arbeitstitel einer Teleskopstudie der Europäischen Südsternwarte (ESO). Nachdem es schon ein Very Large Telescope (engl. für Sehr Großes Teleskop, kurz VLT) gibt und ähnliche Bezeichnungen wie… …   Deutsch Wikipedia

  • Very Large Telescope — VLT redirects here. For other uses, see VLT (disambiguation). Very Large Telescope The four Unit Telescopes that form the VLT together with th …   Wikipedia

  • Overwhelmingly Large Telescope — (OWL) war der Arbeitstitel einer Teleskopstudie der Europäischen Südsternwarte (ESO). Nachdem es schon ein Very Large Telescope (engl. für Sehr Großes Teleskop, kurz VLT) gibt und ähnliche Bezeichnungen wie „Extremely Large Telescope“ (Extrem… …   Deutsch Wikipedia

  • Overwhelmingly Large Telescope — (vue d artiste) L Overwhelmingly Large Telescope (abrégé en OLT ou bien OWL, qui signifie « hibou » en anglais), ou en français « télescope extrêmement grand », est un projet de l Observatoire européen austral (ESO) visant à… …   Wikipédia en Français

  • European Southern Observatory — Infobox Organization name=European Southern Observatory caption = mcaption = type = research organization for astronomy headquarters = membership = 14 member countries language = leader title = leader name = leader title2 = leader name2 =… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.