Royal Society in 1804, and an honorary member of the Hungarian Academy of Sciences in 1832. In 1808, von Zach was in Marseille where he observed and explained the phenomenon of the Canigou mountain in eastern Pyrénées which can be seen twice a year from there, 250 km away, by refraction of light. Asteroid 999 Zachia and the crater Zach on the Moon are named after him, while asteroid 64 Angelina is named after an astronomical station he set up near Marseille. References Works Further reading Brosche, P.: Der Astronom der Herzogin, Acta Historica Astronomiae Vol. 12 Frankfurt am Main: Deutsch, 2nd ed. 2009 Cunningham, C. (ed.) (2004): The Collected Correspondence of Baron Franz von Zach. Vol. 1: Letters between Zach and Jan Sniadecki 1800–1803 Surfside, Fla. (PO Box 547232, Surfside, FL 33154) : Star Lab Press Cunningham, C. (ed.) (2006): The Collected Correspondence of Baron Franz von Zach. Vol. 2: Letters between Zach and Lajos Schedius. Surfside, Fla. (PO Box 547232, Surfside, FL 33154) : Star Lab Press Szabados, Laszlo: Zach, Janos Ferenc in Biographical Encyclopedia of Astronomers, edited by Thomas Hockney, Springer 2007. Vargha, M., 2005: Franz Xaver von Zach (1754–1832): His Life and Times. Konkoly Obs. Monographs No. 5, Budapest. Correspondence between von Zach and Lalande 1754 births 1832 deaths Barons of Austria 18th-century German astronomers Members of the Prussian Academy of Sciences Members of the Royal Swedish Academy of Sciences Honorary members of the Saint Petersburg Academy of Sciences Scientists from Budapest Fellows of the American Academy of Arts and Sciences Fellows of the Royal Society Burials at Père Lachaise Cemetery 19th-century German astronomers