High Quality Content by WIKIPEDIA articles! Baron Franz Xaver von Zach was a German astronomer born at Pest in Hungary. He served for some time in the Austrian army, and afterwards lived in London from 1783 to 1786 as tutor in the house of the Saxon ambassador, Hans Moritz von Bruhl. In 1786 he was appointed by Ernest II, Duke of Saxe-Gotha-Altenburg director of the new observatory on Seeberg hill at Gotha, which was finished in 1791.

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