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Viktor Knorre
Viktor Karlovich Knorre russian: Виктор Карлович Кнорре(4 October 1840 – 25 August 1919) was a Russian astronomer of German ethnic origin. He worked in Nikolaev, Pulkovo and Berlin and is best known for having discovered 158 Koronis and three other minor planets. Knorre's father, Karl Friedrich Knorre, and grandfather, Ernst Friedrich Knorre, were also prominent astronomers. Recently, the main-belt asteroid 14339 Knorre was named in honor of the three generations of Knorre astronomers. Biography and family background Knorre was born into a three-generation astronomer family. His grandfather, Ernst Friedrich Knorre (1759–1810), had moved from Germany to Dorpat (now Tartu, Estonia) where he worked (1803–10) as ''Observator'' for the Dorpat observatory (opened in 1802) and professor of Mathematics at the University of Dorpat. Victor Knorre's father, Karl Friedrich Knorre (1801–1883), set up and was director of the Nikolayev Astronomical Observatory s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mykolaiv
Mykolaiv ( uk, Миколаїв, ) is a city and municipality in Southern Ukraine, the administrative center of the Mykolaiv Oblast. Mykolaiv city, which provides Ukraine with access to the Black Sea, is the location of the most downriver bridge crossing of the Southern Bug river. This city is one of the main shipbuilding centers of the Black Sea. Aside from three shipyards within the city, there are a number of research centers specializing in shipbuilding such as the State Research and Design Shipbuilding Center, Zoria-Mashproekt and others. As of 2021, the city has a population of Mykolaiv holds the honorary title Hero City of Ukraine. The city serves as a transportation hub for Ukraine, containing a sea port, commercial port, river port, highway, railway junction, and airport. Much of Mykolaiv's land area consists of parks. Park Peremohy (''Victory'') is a large park on the peninsula just north of the city center of Mykolaiv, on the north side of the Inhul river. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilhelm Julius Foerster
Wilhelm Julius Foerster (16 December 1832 – 18 January 1921) was a German astronomer. His name can also be written Förster, but is usually written "Foerster" even in most German sources where 'ö' is otherwise used in the text. Biography A native of Grünberg, Silesia, he studied at the University of Berlin and Rheinische Friedrich-Wilhelms-Universität Bonn, and worked as Johann Franz Encke's assistant. In 1860, he co-discovered asteroid 62 Erato with Oskar Lesser, the first co-discovery on record. He became professor of astronomy at the University of Berlin in 1863. After Encke's death in 1865, he became director of the Berlin Observatory and served in this position until 1904. In 1868 he was appointed director of the commission established by the North German Confederation, and continued from 1871 by the German Empire, for the determination of standards of measurement. In this capacity, he superintended the reorganization of the German system of weights and measu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Chess Openings Named After People
''The Oxford Companion to Chess'' lists 1,327 named openings and variants. Chess players' names are the most common sources of opening names. The name given to an opening is not always that of the first player to adopt it; often an opening is named for the player who was one of the first to popularize it or to publish analysis of it. A *Abonyi Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 Nxe5 5.f4 Nec6 – named after István Abonyi; *Adams Attack of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 – named after Weaver W. Adams; *Adler Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3 – named after Adler; *Alapin's Opening – 1.e4 e5 2.Ne2 – named after Semyon Alapin; * Alapin Variation of the Sicilian Defence – 1.e4 c5 2.c3 – named after Semyon Alapin; * Albin Countergambit – 1.d4 d5 2.c4 e5 – named after Adolf Albin; *Alburt Variation of the Alekhine's Defence – 1.e4 Nf6 2.e5 Nd5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encyclopaedia Of Chess Openings
The ''Encyclopaedia of Chess Openings'' () is a reference work describing the state of Chess theory#Opening theory, opening theory in chess, originally published in five volumes from 1974 to 1979 by the Serbian company Šahovski Informator (Chess Informant). It is currently undergoing its fifth edition. ''ECO'' may also refer to the opening classification system used by the encyclopedia. Overview Both ''ECO'' and ''Chess Informant'' are published by the Belgrade-based company Šahovski Informator. The moves are taken from thousands of master games and from published analysis in ''Informant'' and compiled by the editors, most of whom are Grandmaster (chess), grandmasters, who select the lines which they consider most relevant or critical. The chief editor since the first edition has been Aleksandar Matanović. The openings are provided in an chess opening theory table, ''ECO'' table that concisely presents the opening lines considered most critical by the editors. ''ECO'' covers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two Knights Defense
The Two Knights Defense is a chess opening that begins with the moves: :1. e4 e5 :2. Nf3 Nc6 :3. Bc4 Nf6 First recorded by Giulio Cesare Polerio (c. 1550 – c. 1610) in the late 16th century, this line of the Italian Game was extensively developed in the 19th century. Black's third move is a more aggressive defense than the Giuoco Piano ( 3...Bc5). Black invites White to attack his f7-pawn with 4.Ng5. If White accepts the offer, the game quickly takes on a tactical character: Black is practically to give up a pawn for the initiative. The complications are such that David Bronstein suggested that the term "defense" does not fit, and that the name "Chigorin Counterattack" would be more appropriate. The Two Knights has been adopted as Black by many aggressive players including Mikhail Chigorin and Paul Keres, and world champions Mikhail Tal and Boris Spassky. In modern grandmaster play, 3.Bc4 is less common than 3.Bb5, and the more solid 3...Bc5 is the most frequent repl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Zukertort
Johannes Hermann Zukertort (Polish: ''Jan Hermann Cukiertort''; 7 September 1842 – 20 June 1888) was a Polish chess master. He was one of the leading world players for most of the 1870s and 1880s, but lost to Wilhelm Steinitz in the World Chess Championship 1886, which is generally regarded as the first World Chess Championship match. He was also defeated by Steinitz in 1872 in an unofficial championship. Zukertort filled his relatively short life with a wide range of other achievements as a soldier, musician, linguist, journalist and political activist. Early life and non-chess achievements Zukertort was born on 7 September 1842 in Lublin, Congress Poland, Russian Empire as Jan Hermann Cukiertort. He said that his mother was the Baroness Krzyżanowska (Krzyzanovska). His father was a Protestant Christian missionary of Polish descent. Because the Christian Protestant mission among the Jewish population in Russian-occupied Poland was considered illegal and heretical, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Neumann
Gustav Richard Ludwig Neumann (15 December 1838 – 16 February 1881) was a German chess master. Neumann was born in Gleiwitz in the Prussian Province of Silesia. In matches he lost to Louis Paulsen (+3 –5 =3) at Leipzig 1864, and defeated Celso Golmayo Zúpide (+3 –0 =0), and Simon Winawer (+3 –0 =0) at Paris 1867. He also won against Samuel Rosenthal (+12 –2 =8) in three matches in Paris; (+5 –0 =6) in 1867, (+3 –1 =1) and (+4 –1 =1) in 1869. During the late 1860s Neumann was one of the best chess players in the world. In tournaments he was first at Berlin 1865 (+34 –0 =0; first perfect score), first at Elberfeld 1865, first at Dundee 1867 Scotland International, second place went to Steinitz. Neumann reached fourth at Paris 1867 ( Ignatz von Kolisch won), third/fourth at Baden-Baden 1870 ( Adolf Anderssen won), and second, behind Anderssen, at Altona 1872. However, severe mental illness stopped him playing after 1872. In 1864–1867, together with A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolf Anderssen
Karl Ernst Adolf Anderssen (July 6, 1818 – March 13, 1879)"Anderssen, Adolf" in '' The New Encyclopædia Britannica''. Chicago: Encyclopædia Britannica Inc., 15th edn., 1992, Vol. 1, p. 385. was a German chess master. He won the great international tournaments of 1851 and 1862, but lost matches to Paul Morphy in 1858, and to Wilhelm Steinitz in 1866. Accordingly, he is generally regarded as having been the world's leading chess player from 1851 to 1858, and leading active player from 1862 to 1866, although the title of World Chess Champion did not yet exist. Anderssen became the most successful tournament player in Europe, winning over half the events he entered, including the very strong Baden-Baden 1870 chess tournament. He achieved most of these successes when he was over the age of 50. Anderssen is famous today for his brilliant sacrificial attacking play, particularly in the " Immortal Game" (1851) and the " Evergreen Game" (1852). He was an important figure in the dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
271 Penthesilea
Penthesilea (minor planet designation: 271 Penthesilea) is a mid-sized main belt asteroid that was discovered by Viktor Knorre on 13 October 1887 in Berlin. It was his last asteroid discovery. The asteroid was named after Penthesilea, the mythical Greek queen of the Amazons. Photometric observations of this asteroid were made in early 2009 at the Organ Mesa Observatory in Las Cruces, New Mexico. The resulting light curve shows a synodic rotation period of 18.787 ± 0.001 hours with a brightness variation of 0.32 ± 0.04 in magnitude. References External links * * Background asteroids Penthesilea Penthesilea Penthesilea ( el, Πενθεσίλεια, Penthesíleia) was an Amazonian queen in Greek mythology, the daughter of Ares and Otrera and the sister of Hippolyta, Antiope and Melanippe. She assisted Troy in the Trojan War, during which she w ... PC-type asteroids (Tholen) 18871013 {{Beltasteroid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
238 Hypatia
Hypatia (minor planet designation: 238 Hypatia) is a very large main-belt asteroid that was discovered by Russian astronomer Viktor Knorre on July 1, 1884, in Berlin. It was the third of his four asteroid discoveries. The name was given in honour of philosopher Hypatia of Alexandria. Based upon the spectrum, it is classified as a C-type asteroid and is probably composed of primitive carbonaceous material. Like many asteroids of this type, its surface is very dark in colour. Photometric observations of this asteroid at the European Southern Observatory in 1981 gave a light curve with a period of 8.9 ± 0.1 hours and a brightness variation of 0.12 in magnitude. Stellar occultation events were observed for this asteroid during 2001 and 2005. The resulting chords provided cross-section diameter estimates of 146.5 and 145.3 km, respectively. References External linksThe Asteroid Orbital Elements Database [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
215 Oenone
Oenone (minor planet designation: 215 Oenone) is a typical main belt asteroid. It was discovered by the Russian astronomer Viktor Knorre on April 7, 1880, in Germany, and was the second of his four asteroid discoveries. The asteroid is named after Oenone, a nymph in Greek mythology. This body is orbiting the Sun with a period of and a low ellipticity (ovalness) of 0.036. The orbital plane is inclined by 1.7° to the plane of the ecliptic. Light curve data gives a synodic rotation period of , during which it varies in brightness with an amplitude of magnitudes. The cross-section diameter is 36 km. It is classified as an S-type asteroid in the Tholen taxonomy, suggesting a silicaceous (stony) composition. A search of quasi-complanar asteroids has shown that 215 Oenone and 1851 ≡ 1950 VA can approach to within of each other, one of the closest known potential proximities of astronomical bodies. References External linksThe Asteroid Orbital Elements Database [...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 reclassified minor planets and comets into dwarf planets and 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. Minor planets include s ( ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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