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Isaac Newton
La Palma, Canary Islands

The Isaac Newton Telescope started operations in Herstmonceux, United Kingdom, in 1967, but after a number of years it became clear that better astronomical weather conditions would benefit the astronomical use of the telescope. Such conditions are found on the Roque de Los Muchachos Observatory and therefore it was decided to move the telescope to La Palma, where it resumed operations in 1984. The Isaac Newton Telescope has a 2.5-metre primary mirror. It uses a polar-disc and fork type of equatorial mount. Instruments can be mounted either at the Prime focus or the Cassegrain focus, and they offer the possibility of carrying out both wide-field imaging and intermediate to low dispersion spectroscopy.

Aperture: 2.5 meters   Latitude: 28.762119
First light: 1967 Longitude: -17.877559
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Elevation: 2333 meters