Nice Observatory

The Nice Observatory is an astronomical observatory located in Nice, France on the summit of Mount Gros. The observatory was founded in 1879, by the banker Raphaël Bischoffsheim. The architect was Charles Garnier, and Gustave Eiffel designed the main dome. In 1886 the largest refracting (i.e., with an objective lens rather than a mirror) telescope in the World made its debut at Nice Observatory, the Grand Lunette. Description The refractor telescope made by Henry and Gautier became operational around 1886–1887, was the largest in a privately funded observatory, and the first at such high altitude ( above sea level). It was slightly bigger in aperture, several metres longer, and located at a higher altitude than the new (1895) at Pulkovo observatory in the Russian Empire, and the at Vienna Observatory (completed early 1880s). In the records for the largest refracting telescopes, all three were outperformed by the refractor installed at the Lick Observatory at 1,283 m altitude in 1889.