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Philippe Gustave Le Doulcet, Comte De Pontécoulant
Philippe Gustave Doulcet, Comte de Pontécoulant (1795–1874) was a French astronomer. He was the younger son of Louis Gustave le Doulcet, Comte de Pontécoulant and was the brother of Louis-Adolphe Pontécoulant. After 1811 he served in the army until 1849. Following his retirement he dedicated himself to the study of mathematics and astronomy. In 1829 he used the mathematical methods of Poisson and Lagrange to successfully predict the return of Halley's Comet with good precision. His prediction of the perihelion passage was correct to within two days.George Forbes, "History of Astronomy". He was a member of the French Academy of Sciences. The crater Pontécoulant on the Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ... is named after him. File:Pontécoulant-1.jpg, Vo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontécoulant
Pontécoulant () is a commune in the Calvados department in the Normandy region in northwestern France. Geography The commune is part of the area known as Suisse Normande. The commune is made up of the following collection of villages and hamlets, Launay and Pontécoulant. The Commune along with another nine communes shares part of a 5,729 hectare, Natura 2000 conservation area, called the Bassin de la Druance. The communes single watercourse is the River, La Druance. The commune is completely enclosed within the commune of Condé-en-Normandie. Population Points of Interest National heritage sites *Château à Pontécoulant is a seventeenth century Chateau that is open to the public to visit, after its owners in 1908 left it to the department. The chateau was listed as a Monument historique in 1927. Notable People * Louis Gustave le Doulcet, comte de Pontécoulant (1764 – 1853) a French politician, was count of Pontécoulant. *Philippe Gustave le Doulcet, Com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontécoulant (crater)
Pontécoulant is a prominent lunar impact crater that is located in the southeastern part of the Moon. Due to its position, the crater appears foreshortened from the Earth and it is difficult to observe much detail. Nearby craters include Hanno just to the northeast, and the comparably sized Helmholtz due south. This crater has terraced inner wall that is nearly circular, but with an outward extension to the southeast. The rim is somewhat worn but retains much detail. The crater partly overlies the older and smaller Pontécoulant E along the southern rim, and has several tiny craterlets on the eastern inner wall and one to the southwest. The inner floor is nearly flat, with some rough ground near the southern rim and some low central peaks located southwest of the midpoint. There is a small but prominent crater located at the center of the floor, and several other tiny craters scattered across the inner surface. Pontécoulant is a crater of Nectarian age. The eponym of this cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Counts Of Pontécoulant
Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of nobility. Pine, L. G. ''Titles: How the King Became His Majesty''. New York: Barnes & Noble, 1992. p. 73. . Especially in earlier medieval periods the term often implied not only a certain status, but also that the ''count'' had specific responsibilities or offices. The etymologically related English term "county" denoted the territories associated with some countships, but not all. The title of ''count'' is typically not used in England or English-speaking countries, and the term ''earl'' is used instead. A female holder of the title is still referred to as a ''countess'', however. Origin of the term The word ''count'' came into English from the French ', itself from Latin '—in its accusative form ''comitem''. It meant "companion" or "attendant", and as a title it indicated that someone was delegated to re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Members Of The French Academy Of Sciences
Member may refer to: * Military jury, referred to as "Members" in military jargon * Element (mathematics), an object that belongs to a mathematical set * In object-oriented programming, a member of a class ** Field (computer science) In data hierarchy, a field (data field) is a Variable (computer science), variable in a record (computer science), record. A record, also known as a data structure, allows logically related data to be identified by a single name. Identifying relate ..., entries in a database ** Member variable, a variable that is associated with a specific object * Limb (anatomy), an appendage of the human or animal body ** Euphemism for penis * Structural component of a truss, connected by nodes * User (computing), a person making use of a computing service, especially on the Internet * Member (geology), a component of a geological formation * Member of parliament * The Members, a British punk rock band * Meronymy, a semantic relationship in linguistics * C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century French Astronomers
The 19th century began on 1 January 1801 (represented by the Roman numerals MDCCCI), and ended on 31 December 1900 (MCM). It was the 9th century of the 2nd millennium. It was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanded beyond its British homeland for the first time during the 19th century, particularly remaking the economies and societies of the Low Countries, France, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Catholic Church, in response to the growing influence and power of modernism, secularism and materialism, formed the First Vatican Council in the late 19th century to deal with such problems and confir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1874 Deaths
Events January * January 1 – New York City annexes The Bronx. * January 2 – Ignacio María González becomes head of state of the Dominican Republic for the first time. * January 3 – Third Carlist War: Battle of Caspe – Campaigning on the Ebro in Aragon for the Spanish Republican Government, Colonel Eulogio Despujol surprises a Carlist force under Manuel Marco de Bello at Caspe, northeast of Alcañiz. In a brilliant action the Carlists are routed, losing 200 prisoners and 80 horses, while Despujol is promoted to Brigadier and becomes Conde de Caspe. * January 20 – The Pangkor Treaty (also known as the Pangkor Engagement), by which the British extend their control over first the Sultanate of Perak, and later the other independent Malay States, is signed. * January 23 – Prince Alfred, Duke of Edinburgh, second son of Queen Victoria, marries Grand Duchess Maria Alexandrovna of Russia, only daughter of Tsar Alexander III of Russia, in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1795 Births
Events January–June * January – Central England records its coldest ever month, in the CET records dating back to 1659. * January 14 – The University of North Carolina opens to students at Chapel Hill, becoming the first state university in the United States. * January 16 – War of the First Coalition: Flanders campaign: The French occupy Utrecht, Netherlands. * January 18 – Batavian Revolution in Amsterdam: William V, Prince of Orange, Stadtholder of the Dutch Republic (Republic of the Seven United Netherlands), flees the country. * January 19 – The Batavian Republic is proclaimed in Amsterdam, ending the Dutch Republic (Republic of the Seven United Netherlands). * January 20 – French troops enter Amsterdam. * January 23 – Flanders campaign: Capture of the Dutch fleet at Den Helder: The Dutch fleet, frozen in Zuiderzee, is captured by the French 8th Hussars. * February 7 – The Eleventh Amendment to the United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar day) that is synchronized to its orbital period (Lunar month#Synodic month, lunar month) of 29.5 Earth days. This is the product of Earth's gravitation having tidal forces, tidally pulled on the Moon until one part of it stopped rotating away from the near side of the Moon, near side, making always the same lunar surface face Earth. Conversley, the gravitational pull of the Moon, on Earth, is the main driver of Earth's tides. In geophysical definition of planet, geophysical terms, the Moon is a planetary-mass object or satellite planet. Its mass is 1.2% that of the Earth, and its diameter is , roughly one-quarter of Earth's (about as wide as the contiguous United States). Within the Solar System, it is the List of Solar System objects by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 method, scientific research. It was at the forefront of scientific developments in Europe in the 17th and 18th centuries, and is one of the earliest Academy of Sciences, Academies of Sciences. Currently headed by Patrick Flandrin (President of the academy), it is one of the five Academies of the . __TOC__ History The Academy of Sciences traces its origin to Colbert's plan to create a general academy. He chose a small group of scholars who met on 22 December 1666 in the King's library, near the present-day Bibliothèque nationale de France, Bibliothèque Nationale, and thereafter held twice-weekly working meetings there in the two rooms assigned to the group. The first 30 years of the academy's existence were relatively informal, since no statutes had as yet been laid down for the ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Père Lachaise Cemetery
Père Lachaise Cemetery (, , formerly , ) is the largest cemetery in Paris, France, at . With more than 3.5 million visitors annually, it is the most visited necropolis in the world. Buried at Père Lachaise are many famous figures in the arts, including Miguel Ángel Asturias, Honoré de Balzac, Sarah Bernhardt, Georges Bizet, Frédéric Chopin, Colette, George Enescu, Max Ernst, Olivia de Havilland, Marcel Marceau, Georges Méliès, Amedeo Modigliani, Molière, Édith Piaf, Camille Pissarro, Marcel Proust, Gertrude Stein, Oscar Wilde, Richard Wright (author), Richard Wright, Sadegh Hedayat, Jim Morrison, and Michel Petrucciani. Many famous philosophers, scientists, and historical figures are buried there as well, including Peter Abelard, Pierre Bourdieu, Jean-François Champollion, Auguste Comte, Georges Cuvier, Joseph Fourier, Manuel Godoy, Georges-Eugène Haussmann, Jean-François Lyotard, Nestor Makhno, Maurice Merleau-Ponty, Jean Moulin, Henri de Saint-Simon, Jean-Bap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perihelion
An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. The line of apsides (also called apse line, or major axis of the orbit) is the line connecting the two extreme values. Apsides pertaining to orbits around different bodies have distinct names to differentiate themselves from other apsides. Apsides pertaining to geocentric orbits, orbits around the Earth, are at the farthest point called the ''apogee'', and at the nearest point the ''perigee'', like with orbits of satellites and the Moon around Earth. Apsides pertaining to orbits around the Sun are named ''aphelion'' for the farthest and ''perihelion'' for the nearest point in a heliocentric orbit. Earth's two apsides are the farthest point, ''aphelion'', and the nearest point, ''perihelion'', of its orbit around the host Sun. The terms ''aphelion'' and ''perihelion'' apply in the same way to the orbits of Jupiter and the other planets, the comets, and the asteroids of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halley's Comet
Halley's Comet is the only known List of periodic comets, short-period comet that is consistently visible to the naked eye from Earth, appearing every 72–80 years, though with the majority of recorded apparitions (25 of 30) occurring after 75–77 years. It last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061. Officially designated 1P/Halley, it is also commonly called Comet Halley, or sometimes simply Halley. Halley's periodic returns to the inner Solar System have been observed and recorded by astronomers around the world since at least 240 BC, but it was not until 1705 that the English astronomer Edmond Halley understood that these appearances were re-appearances of the same comet. As a result of this discovery, the comet is named after Halley. During its 1986 visit to the inner Solar System, Halley's Comet became the first comet to be observed in detail by a spacecraft, ''Giotto (spacecraft), Giotto'', providing the first obser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
