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Heinrich Wilhelm Matthäus Olbers

Heinrich Wilhelm Matthias Olbers
Heinrich Wilhelm Matthias Olbers.jpg
Lithograph by Rudolph Suhrlandt
Born (1758-10-11)October 11, 1758
Arbergen, Holy Roman Empire
Died March 2, 1840(1840-03-02) (aged 81)
Free Hanseatic City of Bremen
Nationality German
Fields Medicine
Astronomy
Known for Olbers' paradox
Pallas
Vesta

Heinrich Wilhelm Matthias Olbers (/ˈɔːlbərz/; October 11, 1758 – March 2, 1840) was a German physician and astronomer.

Olbers was born in Arbergen, today part of Bremen, and studied to be a physician at Göttingen (1777–80). While he was at Göttingen, he studied mathematics with Abraham Gotthelf Kästner. In 1779, while attending to a sick fellow student, he devised a method of calculating cometary orbits which made an epoch in the treatment of the subject. It was the first satisfactory method of calculating cometary orbits. After his graduation in 1780, he began practicing medicine in Bremen. At night he dedicated his time to astronomical observation, making the upper story of his home into an observatory.

On March 28, 1802, Olbers discovered and named the asteroid Pallas. Five years later, on March 29, 1807, he discovered the asteroid Vesta, which he allowed Carl Friedrich Gauss to name. As the word "asteroid" was not yet coined, the literature of the time referred to these minor planets as planets in their own right. He proposed that the asteroid belt, where these objects lay, was the remnants of a planet that had been destroyed. The current view of most scientists is that tidal effects from the planet Jupiter disrupted the planet-formation process in the asteroid belt. On March 6, 1815, Olbers discovered a periodic comet, now named after him (formally designated 13P/Olbers). Olbers' paradox, described by him in 1823 (and then reformulated in 1826), states that the darkness of the night sky conflicts with the supposition of an infinite and eternal static universe.


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