- Wilhelm Beer
Wilhelm Wolff Beer (
4 January 1797 –27 March 1850 ) was abanker andastronomer fromBerlin , Prussia, and the brother ofGiacomo Meyerbeer .Astronomy
Beer's fame derives from his hobby,
astronomy . He built a privateobservatory with a 9.5 cmrefractor inTiergarten , Berlin. Together withJohann Heinrich Mädler he produced the first exact map of theMoon (entitled "Mappa Selenographica ") in 1834-1836, and in 1837 published a description of the Moon ("Der Mond nach seinen kosmischen und individuellen Verhältnissen"). Both remained the best descriptions of the Moon for many decades.In 1830, Beer and Mädler created the first globe of the planet Mars. In 1840 they made a map of Mars and calculated its
rotation period to be 24 h 37 min 22.7 s, only 0.1 seconds different from the actual period as it is known today.Other work
Beer was multi-talented. In addition to his hobby of astronomy, he helped with the establishment of a
railway system inPrussia , and promoted theJew ish community in Berlin. In his last decade of life, he worked as a writer andpolitician . In 1849 he was elected as an MP for the first chamber of the Prussian parliament.Named after Beer
Beer crater on Mars is named in Wilhelm Beer's honor and lies near Mädler crater. There is also a Beer crater on the
Moon and anasteroid 1896 Beer .External links
*http://humbabe.arc.nasa.gov/mgcm/fun/mars_chro.html
* http://www.uapress.arizona.edu/onlinebks/mars/chap04.htm
* http://www.exploringmars.com/history/1800.html
Wikimedia Foundation. 2010.