Marcin Odlanicki Poczobutt

Marcin Odlanicki Poczobutt wearing the Order of the White Eagle

Marcin Odlanicki Poczobutt (Lithuanian: Martynas Počobutas; 30 October 1728 near Hrodna – 7 February 1810 in Daugavpils) was a Polish–Lithuanian Jesuit astronomer and mathematician. He was professor of Vilnius University for over 50 years, serving as its rector form 1780 to 1799. The Poczobutt crater on the Moon is named after him.

Career

Poczobutt studied at Vilnius University (1745–1751) and Charles University in Prague (1754–1756). With brief interruptions he lectured at Vilnius University from 1753 to 1808.^[1] Sponsored by Michael Frederick Czartoryski, he further studied in France, Italy, and Germany from 1762 to 1764. His stay at the Marseille Observatory under Esprit Pézenas inspired him to devote his career to astronomy.^[2] He earned doctorate of philosophy, gained professorship, and became director of the Vilnius astronomical observatory in 1764.^[1] The observatory, established by Thomas Zebrowski, was in its early stages of development and Poczobutt worked hard to obtain modern instruments. Despite suppression of the Jesuits in 1773, the observatory gained royal favor from King Stanisław August Poniatowski—it was named royal observatory and Poczobutt became King's astronomer.^[2] In 1780, Poczobutt was appointed as university rector by the Commission of National Education. He was tasked with reforming the university from a medieval school concentrated on humanities (philosophy and theology) to a modern scientific institution.^[3] Under Poczobutt the university improved its science, medicine, and law departments.^[4] As rector of the university he promoted the use of Latin and opposed any use of Polish or Lithuanian languages.^[3]

Scientific work

He often traveled to London where he ordered astronomical equipment from Jesse Ramsden and John Dollond: a 4-foot transit telescope in 1765, 3.5-foot achromatic telescope in 1770, 8-foot mural quadrant in 1777, and meridian circle in 1788.^[2] Other purchases included octant, equatorial, two theodolites, 10-foot sextant.^[5] The observatory was expanded by architect Marcin Knackfus in 1782–1788 to accommodate the new equipment. Poczobutt observed solar and lunar eclipses, comets and asteroids (including Ceres, Pallas, Juno), and calculated geographic coordinates of settlements in the Grand Duchy of Lithuania (including Vilnius and Hrodna).^[1] In addition, he made measurements of Mercury to compute its orbit; later this data was used by Jérôme Lalande.^[6] He described 16-star constellation, which he named Taurus Poniatovii in honor of King Poniatowski (it is now obsolete and considered to be part of the Ophiuchus).^[7] His recorded observations amounted to 34 volumes.^[6] In 1770 he became the first in Lithuania to systematically measure and record weather temperature (continuous records survive since 1777).^[8] Poczobutt was a member of the British Royal Society (since 1771) and corresponding member of the French Academy of Sciences (since 1778). He was awarded the Order of Saint Stanislaus in 1785 and Order of the White Eagle in 1793.^[3]

See Also

• List of Roman Catholic scientist-clerics

References

1. ^ ^{a b c} (Lithuanian) Jonas Zinkus, et al., ed (1985–1988). "Počobutas, Martynas". Tarybų Lietuvos enciklopedija. 3. Vilnius, Lithuania: Vyriausioji enciklopedijų redakcija. p. 407. LCC 86232954. 
2. ^ ^{a b c} McConnell, Anita (2007). Jesse Ramsden (1735-1800): London's leading scientific instrument maker. Ashgate Publishing. pp. 79–80. ISBN 9780754661368. http://books.google.com/books?id=-8B1LYGML44C&pg=PA79. 
3. ^ ^{a b c} (Lithuanian) Šidlauskas, Algirdas (1994). Vilniaus universiteto istorija 1569–1994. Vilnius: Valstybinis leidybos centras. pp. 113–114. ISBN 9986-09-047-4. 
4. ^ Stone, Daniel (2001). The Polish–Lithuanian State, 1386–1795. A History of East Central Europe. University of Washington Press. p. 314. ISBN 0-295-98093-1. http://books.google.com/books?id=LFgB_l4SdHAC&pg=PA314. 
5. ^ Klimka, Libertas (2003). "Overview of the History of Vilnius University Observatory". Baltic Astronomy 12 (4): 651–652. Bibcode 2003BaltA..12..649K. ISSN 1392-0049. 
6. ^ ^{a b} Udías Vallina, Agustín (2003). Searching the heavens and the earth: the history of Jesuit observatories. Astrophysics and space science library. Kluwer Academic Publishers. p. 32. ISBN 9781402011894. http://books.google.com/books?id=JeDZS_WrOrMC&pg=PA32. 
7. ^ Kanas, Nick (2009). Star maps: history, artistry, and cartography (2nd ed.). Praxis Publishing. p. 128. ISBN 9780387716688. http://books.google.com/books?id=xepttjhzaH8C&pg=PA128. 
8. ^ (Lithuanian) Bukantis, Arūnas (2010-12-14). "Meteorologiniams matavimams Lietuvoje – 240 metų". Bernardinai.lt. http://www.bernardinai.lt/straipsnis/2010-12-14-meteorologiniams-matavimams-lietuvoje-240-metu/54638. Retrieved 2010-12-19. 

Persondata
Name	Poczobutt, Marcin Odlanicki
Alternative names	Počobutas, Martynas
Short description	Jesuit astronomer, mathematician, professor and rector of Vilnius University
Date of birth	30 October 1728
Place of birth	near Hrodna
Date of death	7 February 1810
Place of death	Daugavpils