Marcin Poczobutt-Odlanicki
Encyclopedia
Marcin Odlanicki Poczobutt ' onMouseout='HidePop("80911")' href="/topics/Hrodna">Hrodna
Hrodna
Grodno or Hrodna , is a city in Belarus. It is located on the Neman River , close to the borders of Poland and Lithuania . It has 327,540 inhabitants...

 – 7 February 1810 in Daugavpils
Daugavpils
Daugavpils is a city in southeastern Latvia, located on the banks of the Daugava River, from which the city gets its name. Daugavpils literally means "Daugava Castle". With a population of over 100,000, it is the second largest city in the country after the capital Riga, which is located some...

) was a Polish–Lithuanian Jesuit astronomer and mathematician. He was professor of Vilnius University
Vilnius University
Vilnius University is the oldest university in the Baltic states and one of the oldest in Eastern Europe. It is also the largest university in Lithuania....

 for over 50 years, serving as its rector
Rector
The word rector has a number of different meanings; it is widely used to refer to an academic, religious or political administrator...

 form 1780 to 1799. The Poczobutt crater
Poczobutt (crater)
Poczobutt is a large lunar impact crater that is located on the far side of the Moon, just beyond the northwestern limb in an area occasionally brought into sight due to libration effects. This is a damaged formation that is partly overlain by several named craters. Across the rim to the...

 on the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

 is named after him.

Career

Poczobutt studied at Vilnius University
Vilnius University
Vilnius University is the oldest university in the Baltic states and one of the oldest in Eastern Europe. It is also the largest university in Lithuania....

 (1745–1751) and Charles University in Prague
Charles University in Prague
Charles University in Prague is the oldest and largest university in the Czech Republic. Founded in 1348, it was the first university in Central Europe and is also considered the earliest German university...

 (1754–1756). With brief interruptions he lectured at Vilnius University from 1753 to 1808. Sponsored by Michael Frederick Czartoryski, he further studied in France, Italy, and Germany from 1762 to 1764. His stay at the Marseille Observatory
Marseille Observatory
Marseille Observatory or Observatoire de Marseille is an astronomical observatory run by the University of Provence. It is located near Marseille, France. In its first incarnation, it was the discovery site of a group of galaxies known as Stephan's Quintet or Hickson 92, discovered by Édouard...

 under Esprit Pézenas inspired him to devote his career to astronomy. He earned doctorate of philosophy, gained professorship, and became director of the Vilnius astronomical observatory in 1764. The observatory, established by Thomas Zebrowski
Thomas Zebrowski
Thomas Zebrowski was a Jesuit architect, mathematician, and astronomer. He was instrumental in establishing and funding the Observatory of Vilnius University. Marcin Odlanicki Poczobutt was among his students....

, was in its early stages of development and Poczobutt worked hard to obtain modern instruments. Despite suppression of the Jesuits
Suppression of the Jesuits
The Suppression of the Jesuits in the Portuguese Empire, France, the Two Sicilies, Parma and the Spanish Empire by 1767 was a result of a series of political moves rather than a theological controversy. By the brief Dominus ac Redemptor Pope Clement XIV suppressed the Society of Jesus...

 in 1773, the observatory gained royal favor from King Stanisław August Poniatowski—it was named royal observatory and Poczobutt became King's astronomer. 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. Under Poczobutt the university improved its science, medicine, and law departments. As rector of the university he promoted the use of Latin and opposed any use of Polish or Lithuanian languages.

Scientific work

He often traveled to London where he ordered astronomical equipment from Jesse Ramsden
Jesse Ramsden
Jesse Ramsden FRSE was an English astronomical and scientific instrument maker.Ramsden was born at Salterhebble, Halifax, West Riding of Yorkshire, England. After serving his apprenticeship with a cloth-worker in Halifax, he went in 1755 to London, where in 1758 he was apprenticed to a...

 and John Dollond
John Dollond
John Dollond was an English optician, known for his successful optics business and his patenting and commercialization of achromatic doublets.-Biography:...

: a 4-foot transit telescope in 1765, 3.5-foot achromatic telescope
Achromatic telescope
The achromatic telescope is a refracting telescope that uses an achromatic lens to correct for chromatic aberration.-How it works:When an image passes through a lens, the light is refracted at different angles for different wavelengths. This produces focal lengths that are dependent on the color of...

 in 1770, 8-foot mural quadrant in 1777, and meridian circle
Meridian circle
The meridian circle, transit circle, or transit telescope is an instrument for observing the time of stars passing the meridian, at the same time measuring its angular distance from the zenith...

 in 1788. Other purchases included octant
Octant (instrument)
The octant, also called reflecting quadrant, is a measuring instrument used primarily in navigation. It is a type of reflecting instrument.-Etymology:...

, equatorial
Equatorial mount
An equatorial mount is a mount for instruments that follows the rotation of the sky by having one rotational axis parallel to the Earth's axis of rotation. This type of mount is used for astronomical telescopes and cameras...

, two theodolite
Theodolite
A theodolite is a precision instrument for measuring angles in the horizontal and vertical planes. Theodolites are mainly used for surveying applications, and have been adapted for specialized purposes in fields like metrology and rocket launch technology...

s, 10-foot sextant
Sextant (astronomical)
Sextants for astronomical observations were used primarily for measuring the positions of stars. They are little used today, having been replaced over time by transit telescopes, astrometry techniques, and satellites such as Hipparcos....

. The observatory was expanded by architect Marcin Knackfus
Marcin Knackfus
Marcin Knackfus was a Polish–Lithuanian Neoclassical architect of German descent. Born near Warsaw, he worked in the Grand Duchy of Lithuania and particularly in its capital Vilnius...

 in 1782–1788 to accommodate the new equipment. Poczobutt observed solar and lunar eclipses, comet
Comet
A comet is an icy small Solar System body that, when close enough to the Sun, displays a visible coma and sometimes also a tail. These phenomena are both due to the effects of solar radiation and the solar wind upon the nucleus of the comet...

s and asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

s (including Ceres
1 Ceres
Ceres, formally 1 Ceres, is the smallest identified dwarf planet in the Solar System and the only one in the asteroid belt. With a diameter of about 950 km, Ceres is by far the largest and most-massive asteroid, comprising about a third of the mass of the asteroid belt. Discovered on 1 January 1801...

, Pallas
2 Pallas
Pallas, formally designated 2 Pallas, is the second asteroid to have been discovered , and one of the largest. It is estimated to constitute 7% of the mass of the asteroid belt, and its diameter of 530–565 km is comparable to, or slightly larger than, that of 4 Vesta. It is however 20%...

, Juno
3 Juno
Juno , formal designation 3 Juno in the Minor Planet Center catalogue system, was the third asteroid to be discovered and is one of the larger main-belt asteroids, being one of the two largest stony asteroids, along with 15 Eunomia. Juno is estimated to contain 1% of the total mass of the asteroid...

), and calculated geographic coordinates of settlements in the Grand Duchy of Lithuania
Grand Duchy of Lithuania
The Grand Duchy of Lithuania was a European state from the 12th /13th century until 1569 and then as a constituent part of Polish-Lithuanian Commonwealth until 1791 when Constitution of May 3, 1791 abolished it in favor of unitary state. It was founded by the Lithuanians, one of the polytheistic...

 (including Vilnius
Vilnius
Vilnius is the capital of Lithuania, and its largest city, with a population of 560,190 as of 2010. It is the seat of the Vilnius city municipality and of the Vilnius district municipality. It is also the capital of Vilnius County...

 and Hrodna
Hrodna
Grodno or Hrodna , is a city in Belarus. It is located on the Neman River , close to the borders of Poland and Lithuania . It has 327,540 inhabitants...

). In addition, he made measurements of Mercury
Mercury (planet)
Mercury is the innermost and smallest planet in the Solar System, orbiting the Sun once every 87.969 Earth days. The orbit of Mercury has the highest eccentricity of all the Solar System planets, and it has the smallest axial tilt. It completes three rotations about its axis for every two orbits...

 to compute its orbit; later this data was used by Jérôme Lalande
Jérôme Lalande
Joseph Jérôme Lefrançois de Lalande was a French astronomer and writer.-Biography:Lalande was born at Bourg-en-Bresse...

. He described 16-star constellation, which he named Taurus Poniatovii
Taurus Poniatovii
Taurus Poniatovii was a constellation created by Marcin Odlanicki Poczobutt in 1777 to honor Stanislaus Poniatowski, king of Poland. It consisted of stars that are today considered part of Ophiuchus and Aquila...

 in honor of King Poniatowski (it is now obsolete and considered to be part of the Ophiuchus
Ophiuchus
Ophiuchus is a large constellation located around the celestial equator. Its name is from the Greek "serpent-bearer", and it is commonly represented as a man grasping the snake that is represented by the constellation Serpens. Ophiuchus was one of the 48 constellations listed by the 2nd-century...

). His recorded observations amounted to 34 volumes. In 1770 he became the first in Lithuania to systematically measure and record weather temperature (continuous records survive since 1777). Poczobutt was a member of the British Royal Society
Royal Society
The Royal Society of London for Improving Natural Knowledge, known simply as the Royal Society, is a learned society for science, and is possibly the oldest such society in existence. Founded in November 1660, it was granted a Royal Charter by King Charles II as the "Royal Society of London"...

 (since 1771) and corresponding member of the French Academy of Sciences
French Academy of Sciences
The French Academy of Sciences is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research...

 (since 1778). He was awarded the Order of Saint Stanislaus
Order of Saint Stanislaus
The Order of Saint Stanislaus , also spelled Stanislas, was an Order in the Polish-Lithuanian Commonwealth and The Kingdom of Poland between 1765 and 1831 and of Russian Empire from 1831 to 1917.-History of the Order of Saint Stanislaus:Stanisław August Poniatowski, King of Poland, established the...

 in 1785 and Order of the White Eagle in 1793.
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