Swiss 1.2-metre Leonhard Euler Telescope

The Swiss 1.2-metre Leonhard Euler Telescope (SELT) is an astronomical telescope located at the La Silla Observatory in Chile, which is operated by the European Southern Observatory (ESO). It is named after the Swiss mathematician and astronomer Leonhard Euler. The telescope has a primary mirror with a diameter of 1.2 meters and is primarily used for research in astrophysics and for observations of celestial objects.