SPRAT (SPectrograph for the Rapid Acquisition of Transients) is a low resolution, high throughput spectrograph. It employs a VPH grating and prism ("grism")...

The SES is a modern white-pupil spectrograph with a moderately high spectral resolution of about 55,000 and a fixed wavelength format of 390 to 870nm. The...

The Swedish 1-m Solar Telescope (SST) is the largest solar telescope in Europe and number one in the world when it comes to high spatial resolution. In its...

The Telescopio Nazionale Galileo (TNG), is a 3.6m alt-azimuth telescope with a Ritchey-Chretien optical configuration and a flat tertiary mirror feeding two...

The Mercator Telescope is a 1.2 m semi-robotic telescope located at the Roque de los Muchachos Observatory on La Palma Island (Canary Islands, Spain). It is...

The William Herschel Telescope (WHT) is the largest optical telescope of its kind in Europe, with a primary mirror of diameter 4.2 metres. Its versatile and...