Cassegrain U-Band Efficient Spectrograph

Fig.1 ESO VLT site (credits ESO).

CUBES (Cassegrain U-Band Efficient Spectrograph), is the forthcoming ESO VLT spectrograph to be installed at one Cassegrain focus of the VLT with the goal of covering with a high efficiency the UV ground-based region (300 - 400 nm) with intermediate resolution (about 20K).

CUBES is now passing through the phase C.