Example image of eyePlorer eyePlorer map for 'Aerial telescope': Refracting telescope Objective (optics) Eyepiece Astronomer Christiaan Huygens Constantijn Huygens, Jr. Mathematics Netherlands Physics Chromatic aberration Halo (optical phenomenon) Non-achromatic objective Diffraction Square (algebra) Adrien Auzout Christopher Wren Nicolaas Hartsoeker Philippe de La Hire Royal Society Animal Moon Gardens of Versailles Giovanni Domenico Cassini Machine de Marly Paris Observatory Giuseppe Campani Dione (moon) Saturn Tethys (moon) 1722 December 27 James Bradley Venus Francesco Bianchini Reflecting telescope John Hadley Newtonian telescope Achromatic lens Edmond Halley Timeline of telescopes, observatories, and observing technology Johannes Hevelius Aerial Timeline of telescope technology History of the telescope
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