Heinrich Wilhelm Matthias Olbers
German astronomer (1758–1840)
Heinrich Wilhelm Matthias Olbers (German: [ˈɔlbɐs]; 11 October 1758 – 2 March 1840) was a German astronomer. He found a convenient method of calculating the orbit of comets, and in 1802 and 1807, discovered the second and the fourth asteroids Pallas and Vesta.
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