Karl Friedrich Küstner

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Science and technology

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What Wikipedia says

Karl Friedrich Küstner (born in Görlitz on 22 August 1856, died 15 October 1936) was a German astronomer who also made contributions to Geodesy. In 1888, he reportedly discovered the Polar motion of the Earth.

Excerpt from the Wikipedia article “Karl Friedrich Küstner”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Wilhelm Fassbender, Public domain, via Wikimedia Commons.