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Petar Đurković
Petar Đurković (Петар Ђурковић, 1908–1981) was a Serbian astronomer known for discovering two asteroids in 1936 and 1940, respectively. One is named for the Serbian scientist Milutin Milanković, the other for Zvezdara, the hill in Belgrade where the Belgrade Astronomical Observatory is located. Asteroid 1555 Dejan, discovered by Fernand Rigaux, was named after Đurković's son (). Đurković was the director of Belgrade Observatory 1965-1970. He was also president of the Astronomical Society Ruđer Bošković, the oldest astronomical society in the Balkans. References 1908 births 1981 deaths 20th-century astronomers Discoverers of asteroids Discoveries by Petar Đurković, * Serbian astronomers University of Belgrade Faculty of Philosophy alumni {{serbia-scientist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planet
According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor planet'', but that year's meeting IAU definition of planet, reclassified minor planets and comets into dwarf planets and Small Solar System body, small Solar System bodies (SSSBs).Press release, IAU 2006 General Assembly: Result of the IAU Resolution votes International Astronomical Union, August 24, 2006. Accessed May 5, 2008. In contrast to the eight official planets of the Solar System, all minor planets fail to clearing the neighborhood, clear their orbital neighborhood. Minor planets include asteroids (near- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herget's Discovery Circumstances
Paul Herget (January 30, 1908 – August 27, 1981) was an American astronomer and director of the Cincinnati Observatory, who established the Minor Planet Center after World War II. Career Herget taught astronomy at the University of Cincinnati. He was a pioneer in the use of machine methods, and eventually digital computers, in the solving of scientific and specifically astronomical problems (for example, in the calculation of ephemeris tables for minor planets). During World War II he applied these same talents to the war effort, helping to locate U-boats by means of the application of spherical trigonometry. Herget established the Minor Planet Center at the university after the war in 1947. He was also named director of the Cincinnati Observatory. The Minor Planet Center was eventually relocated in 1978 to the Smithsonian Astrophysical Observatory in Cambridge, Massachusetts, where it still operates. Herget is also credited with helping design the shape of the Pringles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discoveries By Petar Đurković
Discoveries may refer to: Media Film and television * ''Discoveries'' (film), a 1939 British film * ''Discoveries'' (TV series), a Canadian youth science television series * "Discoveries", a Series D episode of the television series ''QI'' (2006) * "Discoveries" (''Hotel Portofino''), a 2022 TV episode Literature * ''Discoveries'' (Robertson Davies), a 2002 book by Robertson Davies * ''Abrams Discoveries'', a series of illustrated non-fiction books published by Harry N. Abrams * ''Discoveries'', a work by William Butler Yeats, written in 1907 * ''Discoveries'', a magazine published by Cedars-Sinai Medical Center Music * ''Discoveries'' (Cannonball Adderley album), 1955 * ''Discoveries'' (Josh Nelson album), 2011 * ''Discoveries'' (Northlane album), 2011 Other uses * Discoveries (horse), a racehorse See also * Age of Discoveries * Discovery (other) * Explorations (other) Exploration is the process of discovery. Exploration or explorations ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discoverers Of Asteroids
Discovery is the act of detecting something new, or something previously unrecognized as meaningful, "portal". In sciences and academic disciplines, discovery is the observation of new phenomena, new actions, or new events and involves providing new reasoning to explain the knowledge gathered through such observations, using knowledge previously acquired through abstract thought and from everyday experiences. Some discoveries represent a radical breakthrough in knowledge or technology. Others are based on earlier discoveries, collaborations or ideas. In such cases, the process of discovery requires at least the awareness that an existing concept or method could be modified or transformed. New discoveries are made using various senses, and are usually added to pre-existing knowledge. Questioning plays a key role in discovery; discoveries are often made due to questions. Some discoveries lead to the invention of objects, processes, or techniques. Science Within scientific discip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1981 Deaths
Events January * January 1 ** Greece enters the European Economic Community, predecessor of the European Union. ** Palau becomes a self-governing territory. * January 6 – A funeral service is held in West Germany for Nazi Grand Admiral Karl Doenitz following his death on December 24. * January 10 – Salvadoran Civil War: The FMLN launches its first major offensive, gaining control of most of Morazán and Chalatenango departments. * January 15 – Pope John Paul II receives a delegation led by Polish Solidarity leader Lech Wałęsa at the Vatican. * January 20 – Iran releases the 52 Americans held for 444 days, minutes after Ronald Reagan is sworn in as the 40th President of the United States, ending the Iran hostage crisis. * January 21 – The first DeLorean automobile, a stainless steel sports car with gull-wing doors, rolls off the production line in Dunmurry, Northern Ireland. * January 24 – An earthquake of magnitude in Sichuan, China, kills 150 people. J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1908 Births
This is the longest year in either the Julian or Gregorian calendars, having a duration of 31622401.38 seconds of Terrestrial Time (or ephemeris time), measured according to the definition of mean solar time. Events January * January 1 – The British ''Nimrod'' Expedition led by Ernest Shackleton sets sail from New Zealand on the ''Nimrod'' for Antarctica. * January 3 – A total solar eclipse is visible in the Pacific Ocean and is the 46th solar eclipse of Solar Saros 130. * January 13 – A fire breaks out at the Rhoads Opera House in Boyertown, Pennsylvania, killing 171 people. * January 15 – Alpha Kappa Alpha, the first race inclusive sorority is founded on the campus of Howard University in Washington, D.C. * January 24 – Robert Baden-Powell's '' Scouting for Boys'' begins publication in London. The book eventually sells over 100 million copies, and effectively begins the worldwide Boy Scout movement. February * February 1 – Lisbon Regicide: Ki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balkans
The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throughout the whole of Bulgaria. The Balkan Peninsula is bordered by the Adriatic Sea in the northwest, the Ionian Sea in the southwest, the Aegean Sea in the south, the Turkish straits in the east, and the Black Sea in the northeast. The northern border of the peninsula is variously defined. The highest point of the Balkans is Musala, , in the Rila mountain range, Bulgaria. The concept of the Balkan Peninsula was created by the German geographer August Zeune in 1808, who mistakenly considered the Balkan Mountains the dominant mountain system of southeastern Europe spanning from the Adriatic Sea to the Black Sea. In the 19th century the term ''Balkan Peninsula'' was a synonym for Rumelia, the parts of Europe that were provinces of the Ottoman E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Society Ruđer Bošković
Astronomical Society Ruđer Bošković () is an astronomical society in Belgrade, Serbia. Founded in 1934 by a group of students, it is the oldest one in the Balkans. Initially having only several members, today it gathers more than 700 astronomy lovers. It is named after Ruđer Bošković. The main role of the Society is popularisation of astronomy. The Society also practices amateur astronomy observations. To accomplish this, in 1964, the Society founded the Public Observatory, which is still located in adapted Despot's Tower in Kalemegdan, Belgrade. The Belgrade Planetarium, one of the only two planetariums in Serbia, is also founded by the society, in 1970. It is located in the lower part of Kalemegdan Fortress, in a former Turkish bath. The Society publishes a popular science magazine called Vasiona since 1953. History A group of students at the Belgrade University back at the 1934 decided to form an astronomical society focused on amateur observations and astronom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belgrade Observatory
The Belgrade Observatory is an astronomical observatory located in the Zvezdara Forest in the eastern part of Belgrade, Serbia. History Origin (1887–1891) In 1879, Milan Nedeljković (1857–1950) received a scholarship to continue his education in Paris at the Sorbonne. He studied mathematics and at the College de France extraordinary studying physics. In Paris Observatory was formed the first School of Astronomy, which Nedeljkovic successfully completed. During the study he also finished courses in meteorology, precision mechanics and seismology. After five years of study in Paris, he returned in 1884 in Belgrade where he became a professor of astronomy and meteorology at the Grand School (University of Belgrade). At the same time launching a campaign for the establishment of observatory at Grand School, but was rejected because of financial circumstances. Finally, after three long years, the decree of the founding of the Observatory was signed on by the Minister of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fernand Rigaux
Fernand Rigaux (1905 – 21 September 1962) was a Belgian astronomer and observer of variable stars, minor planets and comets at the Royal Observatory at Uccle, Belgium. In 1951, he co-discovered the periodic comet 49P/Arend-Rigaux with his colleague Sylvain Arend. He is also credited by the Minor Planet Center with the discovery of 8 asteroid An asteroid is a minor planet—an object larger than a meteoroid that is neither a planet nor an identified comet—that orbits within the Solar System#Inner Solar System, inner Solar System or is co-orbital with Jupiter (Trojan asteroids). As ...s between 1933 and 1941. The asteroid 19911 Rigaux, discovered by himself at Uccle in 1933, was named in his memory. Naming citation was published on 25 December 2015 (). References 1905 births 1962 deaths 20th-century Belgian astronomers Discoverers of asteroids * {{Europe-astronomer-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1605 Milankovitch
1605 Milankovitch, provisional designation , is an Eoan asteroid from the outer region of the asteroid belt, approximately 31 kilometers in diameter. It was named after Serbian scientist Milutin Milanković. Discovery ''Milankovitch'' was discovered on 13 April 1936, by Serbian astronomer Petar Đurković at the Royal Observatory of Belgium in Uccle, Belgium. Two nights later, the body was independently discovered by Polish astronomers Jan Piegza and Tadeusz Banachiewicz at Cracow and Warsaw, respectively. It was first identified as at the U.S. Taunton Observatory () in 1907. However, it remained unused – as did the subsequent observations at both Simeiz and Lowell Observatory in 1925 and 1931, respectively. The body's observation arc begins with its official discovery observation at Uccle in 1936. Orbit and classification ''Milankovitch'' is a member of the Eos family, an orbital group of more than 4,000 asteroids, which are well known for mostly being of stony c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
