Meudon 83-cm refractor
With its 83-centimetre objective lens, the 1891 Great Refractor at Paris Observatory in Meudon is one of the world’s largest lens-based telescopes.
Credit:Observatoire de Paris
With its 83-centimetre objective lens, the 1891 Great Refractor at Paris Observatory in Meudon is one of the world’s largest lens-based telescopes.
Credit:Observatoire de Paris
