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Visit of the OHP 1.93m telescope

Brief history
This telescope is the largest at the Haute-Provence Observatory (OHP) and for a long time was the largest in Europe. Its mounting was manufactured by Grubb Parsons at Newcastle in the UK. Its total weight is 70 tons and the moving parts weigh 54 tons. The diameter of the primary mirror is 1.93 meters. It was cast in 1937 by the St Gobain Glass Company in France and weighs more than one ton. The primary and secondary mirrors were ground and polished at the Optical Laboratory of Paris Observatory, under the supervision of the astronomer André Couder. The telescope was put into operation in July 1958.

Dome and mounting
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