1. After Having Worked At Uppsala And St-Petersburg, Lexell Worked On Prior Astronomer. Next Astronomer. Back to List LEXELL; Anders J.; 17401784; FIN/RUS http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

2. Apr S Avoir Travaill L'observatoire D'Uppsala Et St- Personnage pr c dant. Personnage suivant. Retour la liste LEXELL; Anders J.; 17401784; FIN/RUS http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

3. Lexell, Anders Johan (Svenskt Biografiskt Handlexikon) Lexell, Anders Johan text is missing here, sorry. Perhaps try these links to scanned images? http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

4. Biografia De Lexell, Anders Johan Reportajes. Los protagonistas de la actualidad. Lexell, Anders Johan ( bo, 1740San Petersburgo, 1784) Astr nomo ruso de origen sueco. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

5. Lexell Biography of Anders Lexell (17401784) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

6. Anders Johan Lexell - Wikipedia, The Free Encyclopedia His name is also given as Anders Johann Lexell or even Johann Anders Lexell.He emigrated to Russia in 1768. He studied the motions of comets. http://en.wikipedia.org/wiki/Comet_Lexell

Wikimedia needs your help in its 21-day fund drive. See our fundraising page Over US$220,000 has been donated since the drive began on 19 August. Thank you for your generosity! Anders Johan Lexell From Wikipedia, the free encyclopedia. (Redirected from Comet Lexell Anders Johan Lexell December 24 December 11 Julian calendar November 30 )) was a Swedish-Russian astronomer and mathematician . In Russian he is known as Andrei Ivanovich Leksel (Андрей Иванович Лексель). His name is also given as Anders Johann Lexell or even Johann Anders Lexell He emigrated to Russia in . He studied the motions of comets . He computed the orbit of comet D/1770 L1 (Lexell), and it is named after him although it was discovered by Charles Messier . This comet made the closest known approach to Earth by any comet in history (although asteroids have come closer), making it the first known near-Earth object ; the exact distance is not known but has been estimated to have been within 3 million km. Lexell showed that the comet had had a much larger perihelion distance until an encounter Jupiter in , and he predicted that, after encountering Jupiter again at an even closer distance two revolutions later, in , it would be altogether expelled from the inner solar system He was also the first to compute the orbit of Uranus soon after its discovery and realized from its orbit that it was a planet rather than a comet. He also found that Uranus was being perturbed and deduced the existence of another planet (the eventual

7. Encyclopedia Anders Lexell Encyclopedia Anders Lexell Updated 37 days 23 hours 39 minutes ago. Other descriptions of Anders Lexell http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

8. Anders Johan Lexell Anders Johan lexell anders Johan Lexell (December 24 1740 December 11 1784 (Julian calendar November 30)) was a Swedish-Russian astronomer http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

9. Science Fair Projects - Anders Johan Lexell The Ultimate Science Fair Projects Encyclopedia Anders Johan Lexell http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

10. Anders Lexell (1740-84) Anders Johan Lexell (December 24, 1740 December 11, 1784) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

11. Biografier lexell anders Johan Leyonmark Gustaf Adolph Lindfors Jonas Lindblom Nils LindbomGustav Aron lexell anders Johan (17401784). Född 24 december 1740. http://www.math.uu.se/studie/grundutb/project/KVA_1739_1849/biografier/biografie

Biografier Agardh John Mortimer Georg Brandt Bergsten Nils Johan Berndtsson Bernhard ... Tillbaka till startsidan Agardh John Mortimer (1812 - 1862) Artiklar: Avhandling om de i högre aritmetiken förekommande indices och om deras användning såsom supplement till våra vanliga log-tabeller [Biografin bygger i sin helhet på C. V. Charliers artikel i Svenskt Biografiskt Lexikon] Tillbaka Artiklar: JÄMFÖRELSE Emellan det Svenska Victualie Skålpundet och några Utländska Vikter URÄKNING över sädens förspillande under bärgningen Tillbaka Brandt Georg (1694-1768) Artiklar: NÅGRA DEMONSTRATIVA REGLER angående malmstreck och grufvors underbyggnad Tillbaka Bergsten Nils Johan (1759 - 1837) Artiklar: Om Elliptiska och Cirkelsectorer, som äro commensurabla med hela arean och tagna i Aritmetisk Progression Om kroklinjers hyperboliska, paraboliska och elliptiska böjningar Om de oändliga grenarna i vissa kroklinjer, vilkas konstruktion beror av ett givet förhållande mellan föränderliga vinklar En lätt metod att upptäcka huvudegenskapen av den kroklinje i vilken en kropp föres när den drages till en given punkt av en centripetalkraft, som är proportionell mot någon dignitet av avståndet ... Anmärkning vid ett problem, som är infört i 3:e kvartalet i k:gla vetenskapsakademiens handlingar 1803 [Biografin bygger i sin helhet på Harald J Heymans artikel i Svenskt Biografiskt Lexikon] Tillbaka Berndtsson Bernhard (1729 - 1804) Artiklar: Metod för kubiska ekvationers upplösning Tillägg till den i 4:e kvartalet av k:gl vetenskaps akademins handlingar för år 1806 uppgivna metod för att upplösa kubiska ekvationer Metod för att upplösa bikvadratiska ekvationer Förändrade expressioner av cardans formler för rötterna i kubiska ekvationer ... Uppgift av rötternas expressioner till den av Bezout i Cours de Mathematiques Algébre pag. 231 (Paris 1800) meddelta formel för ekvationer av 5:e graden även som av dessa expressioners determination vid särskilda händelser mm.

12. Anders Johan Lexell - Definition Of Anders Johan Lexell In Anders Johan Lexell (December 24 1740 ndash; December 11 1784 (Julian calendar November 30)) was a SwedishRussian astronomer and mathematician. In http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

13. Månen lexell anders Lexell Linné Carl von Linné Scheele Carl W Scheele Wargentin PehrWargentin Ångström Anders Ångström Månbergen har för det mesta fått namn http://www.mimersbrunn.se/arbeten/2146.asp

Sveriges största skolsajt med tusentals skolarbeten, uppsatser och artiklar! HEM HÖGSTADIET GYMNASIET UNIVERSITET ... Övrigt Månen Skrivet av: Eva Kumpulainen På latin heter månen Luna. Medelavståndet från jorden till månen är ca 384 400 km men eftersom månens bana runt jorden är oval så varierar avståndet. Månen är jordens närmaste himlakropp. I alla år har människor försökt tyda månen. Några tycks se ett ansikte i månen, kineserna säger att det är en hare och indianerna tycker att det är en groda. Vikingarna tyckte att de såg två kvinnor som bar ett kar mellan sig. Det har skrivits en hel del sånger och musikstycken om månen. Ett känt musikstycke är Månskenssonaten av Beethoven. Det finns även flera sagor om månen. Men man behöver inte tro på alla sagor och sånger om man inte vill. Månen är viktig för oss hursomhelst. Det är månen som skapar tidvattnet, ebb och flod, runt havskusterna. Månen har gett namn åt veckans första dag, måndagen. Det är faktiskt också månen som har lärt oss människor att dela in året i månader. Om du blir medlem och loggar in så slipper du reklamen!

14. Anders Johan Lexell - Wikipedia Vcasih njegovo ime zapišejo tudi kot Anders Johann Lexell ali celo Johann AndersLexell. Leta 1768 se je na povabilo Akademije znanosti v SanktPeterburgu http://sl.wikipedia.org/wiki/Anders_Johan_Lexell

Wikimedija potrebuje vaÅ¡o pomoč pri zbiranju 200.000 dolarjev . Za podrobnosti glejte stran o zbiranju prispevkov Od 19. avgusta smo zbrali že preko 185.000$. Hvala za vaÅ¡o velikoduÅ¡nost! Anders Johan Lexell Iz Wikipedije, proste enciklopedije. Anders Johan Lexell Å¡vedsko ruski astronom in matematik 24. december „bo Å vedska (sedaj Turku Finska 11. december 30. november ... Rusija . V Rusiji je znan po imenu Andrej Ivanovič Leksel rusko Андрей Иванович Лексель). Včasih njegovo ime zapiÅ¡ejo tudi kot Anders Johann Lexell ali celo Johann Anders Lexell Leta se je na povabilo Akademije znanosti v Sankt-Peterburgu preselil v Rusijo. Tu je spoznal Eulerja in delo na Akademiji ga je zelo razveseljevalo. Raziskoval je gibanja kometov . Izračunal je tir kometa D/1770 L1 (Lexell). Komet se imenuje po njem, čeprav ga je odkril Charles Messier . Komet se je od kometov v zgodovini najbolj približal Zemlji . Edino asteroidi se nahajajo bližje. Lexellov komet je bilo prvo znano blizuzemeljsko telo (NEO). Njegova natančna razdalja ni znana, ocenjujejo pa jo na 3 milijone km . Komet je kasneje zaradi bližnjega srečanja z Jupitrom odneslo iz Osončja Ko je John Frederick William Herschel leta v ozvezdju Dvojčkov naletel na nenavadno telo , je menil, da ne more biti zvezda , ker je imel izrazit ploskoven videz. Ni se mu niti sanjalo, da je odkril nov

15. Lexell, Anders Johan (Svenskt Biografiskt Handlexikon) lexell, anders Johan (1906) Author Herman Hofberg, Frithiof Heurlin, ViktorMillqvist, lexell, anders Johan. text is missing here, sorry. http://runeberg.org/sbh/lexeland.html

Svenskt biografiskt handlexikon Lexell, Anders Johan (1906) Author: Herman Hofberg Frithiof Heurlin Viktor Millqvist Olof Rubenson - Tema: Biography and Genealogy Reference Table of Contents / Innehåll Project Runeberg ... Comments? Lexell, Anders Johan text is missing here, sorry. Perhaps try these links to scanned images? The above contents can be inspected in scanned images: II:46 For more information about this person, see Project Runeberg's Nordic Authors Project Runeberg, Thu Nov 5 20:24:31 1998 (aronsson) (download) http://runeberg.org/sbh/lexeland.html

16. Lexell Biography of anders lexell (17401784) anders lexell is sometimes known bythe Russian version of his name which is Andrei Ivanovich lexell. http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Lexell.html

Anders Johan Lexell Born: Died: 11 Dec 1784 in St Petersburg, Russia Click the picture above to see a larger version Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing Anders Lexell In 1768 Lexell was invited to St Petersburg. The St Petersburg Academy of Sciences had been founded by Catherine I, the wife of Peter the Great, in 1725 and Euler had worked there since 1727. By this time Euler was getting quite old, being 62 years of age when the young mathematician Lexell arrived in 1769. However, working in the same Academy as Euler and other high quality scientists was something which Lexell found exciting and enjoyable. Euler discussed research plans with Lexell and the other mathematicians at the Academy. They shared ideas while Lexell sometimes developed further ideas suggested by Euler , sometimes calculating tables, and compiling examples. For example Lexell is given full credit on the title page for his help with Euler 's 1772 publication Theoria motuum lunae, nova methodo pertractata.

17. Lexell Portrait Portrait of anders lexell. The URL of this page is, © Copyright information.http//wwwhistory.mcs.st-andrews.ac.uk/PictDisplay/lexell.html. http://www-groups.dcs.st-and.ac.uk/~history/PictDisplay/Lexell.html

Anders Lexell JOC/EFR September 2003 The URL of this page is: http://www-history.mcs.st-andrews.ac.uk/PictDisplay/Lexell.html

18. Anders Lexell (1740-84) anders Johan lexell (December 24, 1740 December 11, 1784). anders Johan (sometimesin Russian Andrei Ivanovich) lexell was born on December 24, http://www.seds.org/messier/xtra/Bios/lexell.html

Anders Johan Lexell (December 24, 1740 - December 11, 1784) Anders Johan (sometimes in Russian: Andrei Ivanovich) Lexell was born on December 24, 1740 in Abo, then Sweden (now Turku, Finland), where he lived until 1763, and graduated at the university of Abo im 1760. In 1763, he became assistant professor at Uppsala Nautical School, in 1766 professor of mathematics. In 1768 he was invited to the St. Petersburg Academy of Science where he was appointed as professor of astronomy in 1771, and in succession of Euler, to the chair of mathematics in 1783. He died at St. Petersburg a year later, on December 11, 1784. From 1780 to 1782 he had undertaken a travel through Europe and visited Germany, France and England. Besides significant work in mathematics, mainly analysis and geometry, he contributed to astronomy his calculation of the solar parallax and the calculation of the orbits of several comets. Among these comets was one discovered by Charles Messier , the first for which a short period (5 1/2 years) was found. Lexell also found that it had passed very close to Jupiter and its moons, but while the comet changed its orbit significantly and could not be found later, the moons were uneffected; this led him to the conclusion that the comet's mass was extremely low. He also was among the first to calculate an orbit for planet Uranus as it was newly discovered by William Herschel on March 13, 1781.

19. Deep Sky Astronomers Maskelyne, Nevil (17231811) Delisle, Joseph Nicholas (1688-1768) Lalande,Joseph-Jerome le Francais de (1732-1807) lexell, anders (1740-84) Pingre, http://www.seds.org/messier/xtra/Bios/histbios.html

Deep Sky Astronomers Discoverers of Deep Sky Objects Homer (c. 800-700 BC) Hesiod (c. 740-670 BC) Aristotle (384-322 BC) Aratos (310-245 BC) Hipparchus (c. 190-120 BC) Ptolemy (c. 85-165 AD) Al Sufi (903-986 AD) Ulugh Begh Vespucci , Amerigo (1451-1512) Martyr , Peter (1457-1526) Yanez Pinzon , Vicente (1463-1514) Magellan , Fernando de (1480-1521) Brahe , Tycho (1546-1601) Bayer , Johann (1572-1625) Galilei , Galileo (1564-1642) Peiresc , Nicholas-Claude Fabri de (1580-1637) Cysatus , Johann Baptist (1588-1657) Marius , Simon (1570-1624) Huygens , Christiaan (1629-95) Hodierna , Giovanni Battista (1597-1660) Bullialdus , Ismail (1605-94) Hevelius , Johan [Jan] (1611-87) Ihle , Johann Abraham (1627-99?) Picard , Abbe Jean (1620-82) Halley , Edmond (1656-1742) Flamsteed , John (1646-1719) Kirch , Gottfried (1639-1710) Cassini , Giovanni Domenico (Cassini I; 1625-1712) De Mairan , Jean-Jacques Dortous (1678-1771) Bevis , John (1695-1771) Derham , William (1657-1735) , Philippe Loys (1718-51) Maraldi , Jean-Dominique (Maraldi II; 1709-88) Le Gentil de la Galaziere, Guillaume-Joseph-Hyacinthe-Jean-Baptiste (1725-92) Lacaille , Abbe Nicholas Louis de (1713-62) Messier , Charles (1730-1817) Koehler , Johann Gottfried (1745-1801) Bode , Johann Elert (1747-1826) Darquier de Pellepoix, Antoine (1718-1802)

20. EXPLORE Anders Johan Lexell - Dictionary Of Astronomers anders Johan lexell. Article from free online dictionary of astronomers with over1000 biographies. http://www.dictionaryofeverything.com/explore/959/Anders_Johan_Lexell.html

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