Proposals for observing time on all facilities of the La Silla Paranal Observatory (VLT/I, NTT, 3.6m) must be submitted using the p1 web system: The new p1 user interface collects the same information ...

The staff at the ESO ARC provide support to the European users and to the science operations of the ALMA observatory. User support is provided together with the staff in the nodes within the European ...

The 2.2m telescope at La Silla has been in operation since early 1984 and is on indefinite loan to ESO from the Max Planck Gesellschaft. The telescope time is shared between the MPI and ESO Observers.

The primary mirrors of the ESO 8-m class Very Large Telescopes are actively supported, thin Zerodur menisci, 8-.2-m diameter. The mirror blanks are produced by SCHOTT; the optical figuring, ...

ALMA (Atacama Large Millimeter/submillimeter Array) is the world-largest ground-based facility for observations in themillimeter/submillimeter regime located on the ...

Due to the low ratio between their thickness and their diameter, the VLT primary mirrors will be rather flexible and sensitive to various disturbances, requiring permanent control of their optical ...

MATISSE is a four-telescope beam combination instrument operating in the L (between 3.2 and 3.9 μm), M (between 4.5 and 5.0 μm), and N (between 8.0 and 13.0 μm) bands. It operates in a spectroimaging ...

The Call for Proposals for the regular cycles is currently closed. You can no longer submit proposals for the regular cycles. The next call will be released in July 2027. For your convenience you can ...

An integral part of the commissioning of a new instrument at the VLT is the Science Verification phase. SV programmes will include a set of typical scientific observations that should verify and ...

HARPS, the High Accuracy Radial velocity Planet Searcher at the ESO La Silla 3.6m telescope is dedicated to the discovery of extrasolar planets. It is a fibre-fed high resolution echelle spectrograph.

E-ELT PUBLICATIONS AND DOCUMENTATION Project documents E-ELT Top Level Requirements Observatory Instruments ELT-CAM (now MICADO) ELT-IFU (now HARMONI) ELT-MIDIR (now METIS) ELT-HIRES (now ANDES) ...

For information on current and future weather conditions at ESO Chile please visit the ESO Astroclimatology Forecast pages. For past and current weather/seeing data at ESO Observatories, check the ESO ...