Which instruments will the ELT use?
When the Extremely Large Telescope (ELT) becomes operational in 2024, it will be equipped with four sensitive instruments to image and analyse astronomical objects, using adaptive optics to correct for atmospheric turbulence.
European scientists and engineers are already building four giant astronomical instruments for the Extremely Large Telescope. MAORY (Multi-Conjugate Adaptive Optics Relay) is the main adaptive optics module, working with four laser guide stars. MICADO (Multi-AO Imaging Camera for Deep Observations) is the E-ELT’s main camera; HARMONI (High Angular Resolution Monolithic Optical and Near-infrared Integral-field spectrograph) and METIS (Mid-infrared ELT Imager and Spectrograph) are the telescope’s main spectrographs, working at visible and infrared wavelengths.
Your eye has a lens to collect light and a retina to detect it. In the same way, in addition to its giant mirror, the ELT needs instruments to catch and study starlight.