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{{UnreferencedMore citations needed|date=JuneSeptember 20082014}}
 
{{Infobox scientist
|name = Wilhelm Beer
|image = Wilhelm Beer.jpg
|image_size = 150px
|caption = Wilhelm Beer
|birth_date = {{birth date|1797|1|4|df=yes}}
|birth_place = [[Berlin]], [[Kingdom of Prussia|Prussia]]
|death_date = {{death date and age|1850|3|27|1797|1|4|df=yes}}
|death_place = Berlin, Prussia
|residence = |citizenship =
|nationality =
|ethnicity =
|field = [[astronomy]]
|work_institutions =
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|influenced =
|prizes =
|religion = |footnotes = |signature =
}}
'''Wilhelm Wolff Beer''' (4 January 1797 &nbsp;&ndash; 27 March 1850) was a [[banker]] and [[astronomer]] from [[Berlin]], [[Kingdom of Prussia|Prussia]], and the half-brother of [[Giacomo Meyerbeer]].<ref>{{cite book |title=The Biographical Encyclopedia of Astronomers |last=Hockey |first=Thomas |year=2009 |publisher=[[Springer Publishing]] |isbn=978-0-387-31022-0 |accessdate=August 22, 2012 |url=http://www.springerreference.com/docs/html/chapterdbid/59733.html}}</ref>
 
==Astronomy==
Beer's fame derives from his hobby, [[astronomy]]. He built a private [[observatory]] with a 9.5&nbsp;cm [[refractor]] in [[Tiergarten (Berlin)|Tiergarten]], Berlin. Together with [[Johann Heinrich Mädler]] he produced the first exact map of the [[Moon]] (entitled ''[[Mappa Selenographica]]'') in 1834-18361834–1836, 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 in [[Prussia]], and promoted the [[Jew]]ish community in Berlin. In his last decade of life, he worked as a writer and [[politician]]. In 1849 he was elected as an MP for the first chamber of the Prussian parliament.
 
==Named after Beer==
The crater [[Beer (crater on Mars)|Beer]]<ref name=deVaucouleurs1975>{{cite journal | title=The new Martian nomenclature of the International Astronomical Union | display-authors=1 | last1=de Vaucouleurs | first1=G. | last2=Blunck | first2=J. | last3=Davies | first3=M. | last4=Dollfus | first4=A. | last5=Koval | first5=I. K. | last6=Kuiper | first6=G. P. | last7=Masursky | first7=H. | last8=Miyamoto | first8=S. | last9=Moroz | first9=V. I. | last10=Sagan | first10=Carl | last11=Smith | first11=Bradford | journal=Icarus | volume=26 | issue=1 | date=September 1975 | pages=85−98 | doi=10.1016/0019-1035(75)90146-3 | bibcode=1975Icar...26...85D }}</ref> on Mars is named in Wilhelm Beer's honor and lies near [[Mädler (crater on Mars)|Mädler]]. There is also a crater called [[Beer (lunar crater)|Beer]] on the [[Moon]] and an [[asteroid]] [[1896 Beer]].
 
==References==
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==External links==
{{CommonscatCommons category|Wilhelm Beer}}
* https://web.archive.org/web/20040208043324/http://humbabe.arc.nasa.gov/mgcm/fun/mars_chro.html
* http://www.uapress.arizona.edu/onlinebks/mars/chap04.htm {{Webarchive|url=https://web.archive.org/web/20170701062415/http://www.uapress.arizona.edu/onlinebks/mars/chap04.htm |date=2017-07-01 }}
* https://web.archive.org/web/20070822203214/http://www.exploringmars.com/history/1800.html
 
{{Authority control|LCCN=n/88/256979|VIAF=56913385}}
 
{{Persondata <!-- Metadata: see [[Wikipedia:Persondata]] -->
|NAME=Beer, Wilhelm
|ALTERNATIVE NAMES=
|SHORT DESCRIPTION=Astronomer and banker
|DATE OF BIRTH=4 January 1797
|PLACE OF BIRTH=Berlin, Prussia
|DATE OF DEATH=27 March 1850
|PLACE OF DEATH=
}}
{{DEFAULTSORT:Beer, Wilhelm}}
[[Category:1797 births]]
[[Category:1850 deaths]]
[[Category:19th-century German Jews]]
[[Category:19th-century German astronomers]]
[[Category:Businesspeople from Berlin]]
[[Category:People from the Margraviate of Brandenburg]]
[[Category:Selenographers]]
[[Category:Recipients of the Lalande Prize]]
[[Category:Astronomers from the Kingdom of Prussia]]
[[Category:Bankers from the Kingdom of Prussia]]
[[Category:Giacomo Meyerbeer]]