Otto August Rosenberger (10 August 1800 – 23 January 1890) was a

Baltic German Baltic Germans (german: Deutsch-Balten or , later ) were ethnic German inhabitants of the eastern shores of the Baltic Sea, in what today are Estonia and Latvia. Since their coerced resettlement in 1939, Baltic Germans have markedly declined ...

astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, g ...

from

Tukums Tukums (; german: Tuckum; liv, Tukāmō) is a town in the Zemgale region of Latvia. History The historical center of Tukums developed between trade routes leading from the mouth of the Daugava River to Prussia. The oldest part is today's Ta ...

Courland Courland (; lv, Kurzeme; liv, Kurāmō; German and Scandinavian languages: ''Kurland''; la, Curonia/; russian: Курляндия; Estonian: ''Kuramaa''; lt, Kuršas; pl, Kurlandia) is one of the Historical Latvian Lands in western Latvia. ...

. He was born in Tukkum, Courland, Russia. Rosenberger graduated from the

University of Königsberg The University of Königsberg (german: Albertus-Universität Königsberg) was the university of Königsberg in East Prussia. It was founded in 1544 as the world's second Protestant academy (after the University of Marburg) by Duke Albert of Prussi ...

, and was noted for his study of

comet A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process that is called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena ar ...

s. He won the

Gold Medal of the Royal Astronomical Society The Gold Medal of the Royal Astronomical Society is the highest award given by the Royal Astronomical Society (RAS). The RAS Council have "complete freedom as to the grounds on which it is awarded" and it can be awarded for any reason. Past awar ...

in 1837. He died in Halle,

Prussian Saxony The Province of Saxony (german: link=no, Provinz Sachsen), also known as Prussian Saxony () was a province of the Kingdom of Prussia and later the Free State of Prussia from 1816 until 1944. Its capital was Magdeburg. It was formed by the merge ...

. The crater Rosenberger on the

Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...

is named after him.

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Otto August Rosenberger
1800 births 1890 deaths People from Tukums People from Courland Governorate Baltic-German people 19th-century German astronomers Recipients of the Gold Medal of the Royal Astronomical Society University of Königsberg alumni Martin Luther University of Halle-Wittenberg faculty Foreign Members of the Royal Society {{Germany-astronomer-stub