Facts about FEROS

FEROS is a fibre-fed optical echelle spectrograph. It is bench-mounted and environmentally controlled.
Important instrument facts are listed below and can be found on the ESO website.

The detailed description of the FEROS spectrograph can be looked up in the FEROS manual on the ESO website.

Parameter Value/Characteristic
Spectral resolution 48,000
Spectral range ~350 - 920 nm
RV accurarcy ~25 m/s or better
Number of fibers 2
Number of operation modes 2 (object-calibration & object-sky)
Fibre aperature size 2.0 arcsec
Fibre separation 2.9 arcsec
Number echelle orders 39
Detector EEV 2k×4k CCD