European Extremely Large Telescope
(E-ELT, ELT, Extremely Large Telescope)
(39-meter telescope under construction)
The European Extremely Large Telescope (E-ELT,
also called the Extremely Large Telescope or ELT) is
a 39.3-meter adaptive optics, segmented-mirror-reflecting
extremely large telescope under construction
by the European Southern Observatory on top of Cerro Armazones, Chile
(altitude: 3046 meters), in the Atacama Desert.
It is a new site, about 1 km from the existing
Cerro Armazones Observatory,
but it will be operated out of ESO's Paranal Observatory,
which is about 20 km distant.
Ground construction begin in 2017 with
the aim of first light in 2025.
Instrument plans are in development. Some plans:
- MICADO aka ELT-CAM - Multi-adaptive optics Imaging Camera for Deep Observations.
- HARMONI aka ELT-IFU - wide-band spectrograph.
- METIS aka ELT-MIDIR - mid infrared imager and spectrograph.
- MAORY - Multi-conjugate Adaptive Optics Module.
- MOSAIC aka ELT-MOS - multipurpose multi-object spectrograph, a follow-on to the earlier plan, EAGLE.
- HIRES aka ELT-HIRES - high resolution high stability spectrograph, a follow-on to an earlier plan, CODEX.
- EPICS - NIR spectrograph.
- OPTIMOS - wide-field multi-object spectrograph.
- SIMPLE - high-resolution NIR spectrograph.
Referenced by pages:
adaptive optics (AO)
extremely large telescope (ELT)
European Southern Observatory (ESO)
Overwhelmingly Large Telescope (OWL)