European Solar Telescope

European Solar Telescope
European Solar Telescope Logo.jpg
Alternative namesEST Edit this at Wikidata
Part ofRoque de los Muchachos Observatory Edit this on Wikidata
Location(s)Garafía, Province of Santa Cruz de Tenerife, Canary Islands, Spain
Built2023–2028 (2023–2028) Edit this at Wikidata
Telescope styleoptical telescope
solar telescope Edit this on Wikidata
Diameter407 cm (13 ft 4 in) Edit this at Wikidata
Secondary diameter80 cm (2 ft 7 in) Edit this at Wikidata
Angular resolution0.03 arcsecond Edit this on Wikidata
Collecting area13.0 m2 (140 sq ft) Edit this at Wikidata
Mountingaltazimuth mount Edit this on Wikidata Edit this at Wikidata
Enclosuredome Edit this on Wikidata Edit this at Wikidata
Commons page Related media on Wikimedia Commons

The European Solar Telescope (EST) is a pan-European project to build a next-generation 4-metre class solar telescope, to be located at the Roque de los Muchachos Observatory[1] in the Canary Islands, Spain. It will use state-of-the-art instruments with high spatial and temporal resolution that can efficiently produce two-dimensional spectral information in order to study the Sun's magnetic coupling between its deep photosphere and upper chromosphere. This will require diagnostics of the thermal, dynamic and magnetic properties of the plasma over many scale heights, by using multiple wavelength imaging, spectroscopy and spectropolarimetry.

The EST design will strongly emphasise the use of a large number of visible and near-infrared instruments simultaneously, thereby improving photon efficiency and diagnostic capabilities relative to other existing or proposed ground-based or space-borne solar telescopes. In May 2011 EST was at the end of its conceptual design study.

The EST is being developed by the European Association for Solar Telescopes (EAST), which was set up to ensure the continuation of solar physics within the European community. Its main goal is to develop, construct and operate the EST.[2] The European Solar Telescope is often regarded as the counterpart of the American Daniel K. Inouye Solar Telescope which is currently being constructed.

Conceptual design study[]

The conceptual design study[3] conducted by research institutions and industrial companies was finalized in May 2011.[4] The study took 3 years, cost €7 million and was co-financed by the European Commission under the EU's Seventh Framework Programme for Research (FP7).[5] The study estimates a €150 million to design and construct the EST and projects about €6.5 million annually for its operation.


The member institutes of the European Association for Solar Telescopes originate from 15 different countries.

The European Association for Solar Telescopes (EAST) is a consortium of 7 research institutions and 29 industrial partners from 15 European countries, that exists with the aim, among others, of undertaking the development of EST, to keep Europe in the frontier of Solar Physics in the world. As well as EAST intends to develop, construct and operate a next-generation large aperture European Solar Telescope (EST) in the Canaries, Spain.

Institute Location
IGAM Institutsbereich Geophysik, Astrophysik und Meteorologie Austria Graz
HVO Hvar Observatory Croatia Hvar
AIASCR Astronomical Institute AS CR Czech Republic Ondrejov
THEMIS THEMIS S.L.,[note 1] INSU-CNRS, CNR France Paris
KIS Kiepenheuer-Institut für Sonnenphysik Germany Freiburg
HSPF Hungarian Solar Physics Foundation Hungary Gyula
INAF Istituto Nazionale di Astrofisica Italy Rome
UU Ultrecht University, Sterrekundig Instituut Netherlands Utrecht
ITA Institute for Theoretical Astrophysics Norway Oslo
IA UWr Astronomical Institute of the Wroclaw University Poland Wroclaw
AISAS Astronomical Institute of the Slovak, Academy of Sciencees Slovakia Tatranská Lomnica
IAC Instituto de Astrofísica de Canarias Spain La Laguna
SU Institute for Solar Physics Sweden Stockholm
IRSOL Istituto Ricerche Solari Switzerland Locarno
UCL-MSSL University College London - MSSL United Kingdom London

See also[]


  1. ^ "El Telescopio Solar Europeo se instalará en La Palma". Instituto de Astrofísica de Canarias • IAC. Retrieved 22 May 2021.
  2. ^ The European Solar Telescope
  3. ^ "Conceptual Design Study - Final Report" (PDF). Archived from the original (PDF) on 23 May 2014. Retrieved 23 May 2014.
  4. ^ "Partners Institutions". Archived from the original on 20 October 2013. Retrieved 23 May 2014.
  5. ^ "SUCCESS STORIES - How much money has the EU invested in this?". Retrieved 23 May 2014.


  1. ^ The THEMIS Limited Company has been created in 2000 as a Spanish rights company and a joint operation between Spain, Italy, and France and owned by the French CNRS "Centre National de la Recherche Scientifique" (80%) and the Italian CNR "Consiglio Nazionale delle Ricerche" (20%).

External links[]