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|birth_date = 1572
|birth_date = 1572
|birth_place = [[Rain, Swabia|Rain]]
|birth_place = [[Rain, Swabia|Rain]]
|death_date = March 7, 1625
|death_date = 7 March 1625
|death_place = [[Augsburg]]
|death_place = [[Augsburg]]
|residence =
|residence =
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[[Image:Uranometria orion.jpg|thumb|The constellation [[Orion (constellation)|Orion]] in Bayer's ''Uranometria'']]
[[Image:Uranometria orion.jpg|thumb|The constellation [[Orion (constellation)|Orion]] in Bayer's ''Uranometria'']]


'''Johann Bayer''' (1572 &ndash; March 7, 1625) was a [[Germany|German]] [[lawyer]] and [[Star cartography|uranograph]]er (celestial [[cartographer]]). He was born in [[Rain, Lower Bavaria]], in 1572. At twenty, in 1592 he began his study of philosophy and law at the [[University of Ingolstadt]], after which he moved to [[Augsburg]] to begin work as a lawyer, becoming legal adviser to the city council in 1612.<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/58130.html}}</ref>
'''Johann Bayer''' (1572 &ndash; 7 March 1625) was a [[Germany|German]] [[lawyer]] and [[Star cartography|uranograph]]er (celestial [[cartographer]]). He was born in [[Rain, Lower Bavaria]], in 1572. At twenty, in 1592 he began his study of philosophy and law at the [[University of Ingolstadt]], after which he moved to [[Augsburg]] to begin work as a lawyer, becoming legal adviser to the city council in 1612.<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/58130.html}}</ref>


Bayer had several interests outside his work, including archaeology and mathematics. However, he is primarily known for his work in astronomy; particularly for his work on determining the positions of objects on the [[celestial sphere]]. He remained unmarried and died in 1625.<ref name=kanas2007/>
Bayer had several interests outside his work, including archaeology and mathematics. However, he is primarily known for his work in astronomy; particularly for his work on determining the positions of objects on the [[celestial sphere]]. He remained unmarried and died in 1625.<ref name=kanas2007/>
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| DATE OF BIRTH = 1572
| DATE OF BIRTH = 1572
| PLACE OF BIRTH = [[Rain, Swabia|Rain]]
| PLACE OF BIRTH = [[Rain, Swabia|Rain]]
| DATE OF DEATH = March 7, 1625
| DATE OF DEATH = 7 March 1625
| PLACE OF DEATH = [[Augsburg]]
| PLACE OF DEATH = [[Augsburg]]
}}
}}

Revision as of 18:19, 20 March 2014

Johann Bayer
Born1572
Died7 March 1625
NationalityGerman
Alma materUniversity of Ingolstadt
Known forUranometria
Scientific career
FieldsJurisprudence, astronomy
The constellation Orion in Bayer's Uranometria

Johann Bayer (1572 – 7 March 1625) was a German lawyer and uranographer (celestial cartographer). He was born in Rain, Lower Bavaria, in 1572. At twenty, in 1592 he began his study of philosophy and law at the University of Ingolstadt, after which he moved to Augsburg to begin work as a lawyer, becoming legal adviser to the city council in 1612.[1]

Bayer had several interests outside his work, including archaeology and mathematics. However, he is primarily known for his work in astronomy; particularly for his work on determining the positions of objects on the celestial sphere. He remained unmarried and died in 1625.[2]

Bayer is most famous for his star atlas Uranometria Omnium Asterismorum (Uraniometry of all the asterisms"), which was first published in 1603 in Augsburg and dedicated to two prominent local citizens.[2] This was the first atlas to cover the entire celestial sphere.[3] It was based upon the work of Tycho Brahe and may have borrowed from Alessandro Piccolomini's 1540 star atlas, De le stelle fisse, ("Of the fixed stars") although Bayer included an additional 1,000 stars. The Uranometria introduced a new system of star designation which has become known as the Bayer designation.[4] Bayer's atlas added twelve new constellations to fill in the far south of the night sky, which was unknown to ancient Greece and Rome.[3]

The crater Bayer on the Moon is named after him.

See also

References

  1. ^ Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.
  2. ^ a b Kanas, Nick (2007), Star maps: history, artistry, and cartography, Springer-Praxis books in popular astronomy, Springer, pp. 153–155, ISBN 0-387-71668-8
  3. ^ a b Asimov, Asimov's Biographical Encyclopedia of Science and Technology 2nd revised edition
  4. ^ Ridpath, Ian, Bayer's Uranometria and Bayer letters

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