Example image of eyePlorer eyePlorer map for 'Gotha Observatory': Germany Gotha (town) Thuringia Astrometry 1346 Gotha Ernest II, Duke of Saxe-Gotha-Altenburg Franz Xaver von Zach England Oxford Radcliffe Observatory Achromatic lens Heliometer John Hadley Quadrant (instrument) Sextant Transit instrument Photography Photometer Spectroscopy Johann Franz Encke Johann Karl Burckhardt Leo Anton Karl de Ball Peter Andreas Hansen Hugo von Seeliger Carl Friedrich Gauss
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