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1957
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Born in Karlsruhe, Baden-Württenberg, Germany
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1984
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MA in Philosophy, Logic and Theory of Sciences, Christian Philosophy and Theology (Ludwig-Maximilian-University, Munich)
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1989
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Associated member of the working group of History of Landsurveying in the Society of German Landsurveying Engineers (VDV)
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1989
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Manager of the astronomical observatory of the vhs Stadt Fürstenfeldbruck eV (School for Adult Learning), Germany. Main item is a 21-cm Fraunhofer refractor.
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1991
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Managing director of the vhs Gilching eV (School for Adult Learning), Germany
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1994
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Member of the "Urgeschichtskreis Blaubeuren eV", Germany
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1997
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Member of SEAC (Sociétè Europèene pour l´Astronomie en Culture / European Society for Astronomy in Culture)
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1998
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Doctoral degree (Dr.rer.nat.) in History of Natural Sciences - History of Astronomy - (Ludwig-Maximilian-University, Munich) and the subsidiary subjects of Astronomy and Systematic Theology
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since 2000
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Member of the Societyfor Scientific Investigation of Symbols (eV), Germany
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2001
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Vicepresident of the Society for Scientific Investigation of Symbols eV, Germany / Coeditor of "Symbolon", the yearbook of this society / webmaster of the official website of that society www.symbolforschung.org.
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2002
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Constructor and manager of the astronomical observatory at the new educational center of the vhs Gilching e.V. / webmaster of the official website of the astronomical observatories in Fürstenfeldbruck and Gilching www.astrogilde.de.
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2003
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One of five Vicepresidents of SEAC
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2004
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Member of CIRS (Chiemgau Impact Research Team); Research work on the Chiemgau Impact since 2004
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2005
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Member of ISAAC (The International Society for Archaeoastronomy and Astronomy in Culture) / Secretary of SEAC / webmaster of the SEAC website / Manager of the astronomical observatory of the vhs Gilching eV. Main item of the observatory is a 20"-Newtonian telescope; since 2006 secretary of SEAC
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2006
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Member of the "Tobias Mayer Museum Verein", Marbach, Germany
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2007
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Member of the "Astronomische Gesellschaft" (Astronomical Society, Germany)
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