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{{Short description|German astronomer and mathematician}}
{{distinguish|Johann Praetorius}}
{{for|the folk tale compiler|Johannes Praetorius (writer)}}
[[File:JohannesPraetorius.jpg|thumb|right|200px|Johannes Praetorius.]]
[[File:JohannesPraetorius.jpg|thumb|right|200px|Johannes Praetorius.]]


'''Johann Richter''' or '''Johannes Praetorius''' (1537 – 27 October 1616) was a [[Bohemian German]] [[mathematician]] and [[astronomer]].
'''Johannes Praetorius''' or '''Johann Richter''' (1537 – 27 October 1616) was a [[Bohemian German]] [[mathematician]] and [[astronomer]].


== Life ==
== Life ==
[[File:Gregor Reisch, Margarita Philosophica, Astronomia.jpg|thumb|Astronomia, ars liberalis]]
[[File:Gregor Reisch, Margarita Philosophica, Astronomia.jpg|thumb|''Astronomia, ars liberalis'']]
Praetorius was born in [[Jáchymov]], [[Kingdom of Bohemia|Bohemia]]. From 1557 he studied at the [[University of Wittenberg]], and from 1562 to 1569 he lived in [[Nuremberg]]. His astronomical and mathematical instruments are kept at [[Germanisches Nationalmuseum]] in Nuremberg.
Praetorius was born in [[Jáchymov]], [[Kingdom of Bohemia|Bohemia]]. From 1557 he studied at the [[University of Wittenberg]], and from 1562 to 1569 he lived in [[Nuremberg]]. His astronomical and mathematical instruments are kept at [[Germanisches Nationalmuseum]] in Nuremberg.


In 1571 be became Professor of mathematics (astronomy) at [[Wittenberg]] where he met [[Valentinus Otho]] and [[Georg Joachim Rheticus|Joachim Rheticus]]. He died in [[Altdorf bei Nürnberg]], aged about 79.
In 1571 he became Professor of mathematics (astronomy) at [[Wittenberg]] where he met [[Valentinus Otho]] and [[Georg Joachim Rheticus|Joachim Rheticus]]. He died in [[Altdorf bei Nürnberg]], aged about 79.


He taught [[Copernicus]]' theory of astronomy initially as a means of eliminating the [[equant]] from [[Ptolemy]]'s account, and later moving to a proto-[[Tychonic system]].<ref>{{cite book |last=Westman |first=Robert S. |chapter=Three Responses to the Copernican Theory |title=The Copernican Achievement |chapter-url=https://books.google.com/books?id=sLb6k-62vbQC&pg=PA290 |date=1975 |publisher=[[University of California Press]] |isbn=978-0-520-02877-7 |pages=290–305 }}</ref>
⚫
== Work ==

⚫
== Works ==
* De cometis, qui antea visi sunt, et de eo qui novissime mense Novembri apparuit, narratio 1578
* De cometis, qui antea visi sunt, et de eo qui novissime mense Novembri apparuit, narratio 1578
* Problema, quod iubet ex quatuor rectis lineis datis quadrilaterum fieri, quod sit in circulo 1598
* Problema, quod iubet ex quatuor rectis lineis datis quadrilaterum fieri, quod sit in circulo 1598


==Literature==
==References==
{{reflist}}

==Sources==
* {{Zedler Online|29|86|ze290086}}
* {{Zedler Online|29|86|ze290086}}
* Gerhard Bott (Hrsg.): ''Focus Behaim Globus.'' 2 Bde. Nürnberg: Verlag des Germanischen Nationalmuseums 1992
* Gerhard Bott (Hrsg.): ''Focus Behaim Globus.'' 2 Bde. Nürnberg: Verlag des Germanischen Nationalmuseums 1992
Line 23: Line 31:
* Zofia Wardeska: ''Die Universität Altdorf als Zentrum der Copernicus-Rezeption um die Wende vom 16. zum 17. Jahrhundert.'' Sudhoffs Archiv 61/2, 1977, S. 156-164
* Zofia Wardeska: ''Die Universität Altdorf als Zentrum der Copernicus-Rezeption um die Wende vom 16. zum 17. Jahrhundert.'' Sudhoffs Archiv 61/2, 1977, S. 156-164
* Georg Andreas Will: ''Nürnbergisches Gelehrtenlexikon Bd. 3.'' Nürnberg: Lorenz Schüpfel 1757, S. 225-231
* Georg Andreas Will: ''Nürnbergisches Gelehrtenlexikon Bd. 3.'' Nürnberg: Lorenz Schüpfel 1757, S. 225-231
* Helmar Junghans: ''Verzeichnis der Rektoren, Prorektoren, Dekane, Professoren und Schloßkirchenprediger der Leucorea vom Sommersemester 1536 bis zum Wintersemester 1574/75.'' In: Irene Dingel, Günther Wartenberg: ''Georg Major (1502-1574) - Ein Theologe der Wittenberger Reformation.'' Evangelische Verlagsanstalt, Leipzig, 2005, ISBN 3-374-02332-0
* Helmar Junghans: ''Verzeichnis der Rektoren, Prorektoren, Dekane, Professoren und Schloßkirchenprediger der Leucorea vom Sommersemester 1536 bis zum Wintersemester 1574/75.'' In Irene Dingel, Günther Wartenberg: ''Georg Major (1502-1574) - Ein Theologe der Wittenberger Reformation.'' [[Evangelische Verlagsanstalt]], Leipzig, 2005, {{ISBN|3-374-02332-0}}


== External links ==
==External links==
* {{MathGenealogy|id=127010}}
* [http://www.naa.net/ain/personen/jpraetorius.asp Astronomie in Nürnberg]
* [http://www.naa.net/ain/personen/jpraetorius.asp Astronomie in Nürnberg] {{Webarchive|url=https://web.archive.org/web/20070927003104/http://www.naa.net/ain/personen/jpraetorius.asp |date=27 September 2007 }}
* [http://www.didaktik.mathematik.uni-wuerzburg.de/history/pantometrum/vorfahren.html Vorfahren des Pantometrums]
* [http://www.didaktik.mathematik.uni-wuerzburg.de/history/pantometrum/vorfahren.html Vorfahren des Pantometrums]


{{Authority control}}
{{Persondata <!-- Metadata: see [[Wikipedia:Persondata]]. -->

| NAME = Praetorius, Johannes
{{Use dmy dates|date=August 2016}}
| ALTERNATIVE NAMES =

| SHORT DESCRIPTION =
| DATE OF BIRTH = 1537
| PLACE OF BIRTH =
| DATE OF DEATH = 27 October 1616
| PLACE OF DEATH =
}}
{{DEFAULTSORT:Praetorius, Johannes}}
{{DEFAULTSORT:Praetorius, Johannes}}
[[Category:1537 births]]
[[Category:1537 births]]
[[Category:1616 deaths]]
[[Category:1616 deaths]]
[[Category:People from Jáchymov]]
[[Category:People from Jáchymov]]
[[Category:Bohemian-German people]]
[[Category:German Bohemian people]]
[[Category:University of Wittenberg alumni]]
[[Category:University of Wittenberg alumni]]
[[Category:University of Wittenberg faculty]]
[[Category:Academic staff of the University of Wittenberg]]
[[Category:German astronomers]]
[[Category:16th-century German astronomers]]
[[Category:German mathematicians]]
[[Category:16th-century German mathematicians]]
[[Category:German people of Bohemian German descent]]
[[Category:17th-century German mathematicians]]
[[Category:Globe makers]]


{{Germany-mathematician-stub}}
{{Germany-astronomer-stub}}

[[de:Johann Richter (Astronom)]]
[[fr:Johann Richter]]
[[ht:Johannes Praetorius]]

Revision as of 18:30, 28 May 2024

Not to be confused with Johann Praetorius.
For the folk tale compiler, see Johannes Praetorius (writer).
Johannes Praetorius.

Johannes Praetorius or Johann Richter (1537 – 27 October 1616) was a Bohemian German mathematician and astronomer.

Life

Astronomia, ars liberalis

Praetorius was born in Jáchymov, Bohemia. From 1557 he studied at the University of Wittenberg, and from 1562 to 1569 he lived in Nuremberg. His astronomical and mathematical instruments are kept at Germanisches Nationalmuseum in Nuremberg.

In 1571 he became Professor of mathematics (astronomy) at Wittenberg where he met Valentinus Otho and Joachim Rheticus. He died in Altdorf bei Nürnberg, aged about 79.

He taught Copernicus' theory of astronomy initially as a means of eliminating the equant from Ptolemy's account, and later moving to a proto-Tychonic system.[1]

Works

  • De cometis, qui antea visi sunt, et de eo qui novissime mense Novembri apparuit, narratio 1578
  • Problema, quod iubet ex quatuor rectis lineis datis quadrilaterum fieri, quod sit in circulo 1598

References

  1. ^ Westman, Robert S. (1975). "Three Responses to the Copernican Theory". The Copernican Achievement. University of California Press. pp. 290–305. ISBN 978-0-520-02877-7.

Sources

  • "Entry". Zedlers Universallexikon. Vol. 29. p. 86.
  • Gerhard Bott (Hrsg.): Focus Behaim Globus. 2 Bde. Nürnberg: Verlag des Germanischen Nationalmuseums 1992
  • Johann Gabriel Doppelmayr: Historische Nachricht von den Nürnbergischen Mathematicis und Künstlern. Nürnberg: Peter Conrad Monath 1730, S. 83-92
  • Siegmund Günther (1888), "Praetorius, Johannes", Allgemeine Deutsche Biographie (in German), vol. 26, Leipzig: Duncker & Humblot, pp. 519–520
  • Felix Schmeidler (2001), "Praetorius, Johannes", Neue Deutsche Biographie (in German), vol. 20, Berlin: Duncker & Humblot, p. 667
  • Klaus Matthäus: Zur Geschichte des Nürnberger Kalenderwesens. Frankfurt a.M.: Buchhändler-Vereinigung 1969, Sp. 1044-1047
  • Uwe Müller (Hrsg.): 450 Jahre Copernicus „De revolutionibus“. Astronomische und mathematische Bücher aus Schweinfurter Bibliotheken. Schweinfurt: Stadtarchiv 1993
  • Zofia Wardeska: Die Universität Altdorf als Zentrum der Copernicus-Rezeption um die Wende vom 16. zum 17. Jahrhundert. Sudhoffs Archiv 61/2, 1977, S. 156-164
  • Georg Andreas Will: Nürnbergisches Gelehrtenlexikon Bd. 3. Nürnberg: Lorenz Schüpfel 1757, S. 225-231
  • Helmar Junghans: Verzeichnis der Rektoren, Prorektoren, Dekane, Professoren und Schloßkirchenprediger der Leucorea vom Sommersemester 1536 bis zum Wintersemester 1574/75. In Irene Dingel, Günther Wartenberg: Georg Major (1502-1574) - Ein Theologe der Wittenberger Reformation. Evangelische Verlagsanstalt, Leipzig, 2005, ISBN 3-374-02332-0

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