Friedrich II. Graf von Hahn (July 27, 1742 – October 9, 1805) was a German nobleman, a philosopher and astronomer born in Neuhaus, Holstein, Germany. He suggested the Doppler effect before Doppler.
Born |
27 July 1742 Neuhaus, Holstein
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Died |
9 October 1805 (aged 63)
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Zodiac | Leo |
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