The VLT Survey Telescope, dubbed as VST, is a wide-field optical imager with a 2.61 m aperture conceived for the superb environment of the Paranal Observatory.
It operates from the UV to the I band, preserving, within a corrected field of view of 1° x 1°, the seeing conditions achievable at the Cerro Paranal site. The telescope is equipped with just one focal plane instrument, OmegaCAM, a large format (16k x 16k pixels) CCD camera contributed by the homonymous international consortium.
VST has been born as a joint venture between the European Southern Observatory (ESO), and the Capodimonte Astronomical Observatory (OAC) of Naples which, since 2002, has been integrated into the Italian National Institute for Astrophysics (INAF).
So far VST is the only telescope entirely produced by the Italian community for ESO which is the most demanding Observatory in the world for quality standards.
The science programs of the VST are focused on most of the current open questions in modern cosmology and astrophysics: