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{{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 =
|field = [[astronomy]]
|work_institutions =
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|influenced =
|prizes =
}}
'''Wilhelm Wolff Beer''' (4 January 1797
==Astronomy==
Beer's fame derives from his hobby, [[astronomy]]. He built a private [[observatory]] with a 9.5 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
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==
==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
==References==
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==External links==
{{
* 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
{{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]]
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