EST Observatory

Unveiling the Sun in Unprecedented Detail

The European Solar Telescope (EST) is a next-generation 4-meter class solar telescope, designed to investigate the magnetic coupling of the solar atmosphere. EST will be located in the Canary Islands (Spain), a first-class site for astronomical observations, ensuring unique conditions for high-resolution solar physics.

Key Capabilities EST is optimized to observe the Sun’s magnetic field from the deep photosphere up to the upper chromosphere. By combining a large primary mirror with advanced adaptive optics and state-of-the-art instrumentation, EST will be able to distinguish features on the solar surface as small as 30 kilometers.

A European Effort The project unites top solar physics research groups from across Europe. Its main goal is to provide the European scientific community with the tools necessary to solve the long-standing question of how the solar atmosphere is heated and how magnetic fields control solar activity/space weather.

EST Science

EST technology

EST in Switzerland

Swiss contributions to EST