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4492 Debussy
4492 Debussy ( ''prov. designation'': ) is a dark and elongated background asteroid and binary system from the intermediate asteroid belt, approximately in diameter. It was discovered on 17 September 1988, by Belgian astronomer Eric Elst at Haute-Provence Observatory in France. It was later named after French composer Claude Debussy. Orbit and classification ''Debussy'' is a non-family asteroid from the main belt's background population. It orbits the Sun in the middle main-belt at a distance of 2.3–3.3 AU once every 4 years and 7 months (1,680 days; semi-major axis of 2.77 AU). Its orbit has an eccentricity of 0.18 and an inclination of 8 ° with respect to the ecliptic. A first precovery was taken at Palomar Observatory in 1951, extending the body's observation arc by 37 years prior to its official discovery observation. Naming This minor planet was named in memory of French composer Claude Debussy (1862–1918), one of the most prominent figures associate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightcurve
In astronomy, a light curve is a graph of light intensity of a celestial object or region as a function of time, typically with the magnitude of light received on the y axis and with time on the x axis. The light is usually in a particular frequency interval or band. Light curves can be periodic, as in the case of eclipsing binaries, Cepheid variables, other periodic variables, and transiting extrasolar planets, or aperiodic, like the light curve of a nova, a cataclysmic variable star, a supernova or a microlensing event or binary as observed during occultation events. The study of the light curve, together with other observations, can yield considerable information about the physical process that produces it or constrain the physical theories about it. Variable stars Graphs of the apparent magnitude of a variable star over time are commonly used to visualise and analyse their behaviour. Although the categorisation of variable star types is increasingly done from their spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-major Axis
In geometry, the major axis of an ellipse is its longest diameter: a line segment that runs through the center and both foci, with ends at the two most widely separated points of the perimeter. The semi-major axis (major semiaxis) is the longest semidiameter or one half of the major axis, and thus runs from the centre, through a focus, and to the perimeter. The semi-minor axis (minor semiaxis) of an ellipse or hyperbola is a line segment that is at right angles with the semi-major axis and has one end at the center of the conic section. For the special case of a circle, the lengths of the semi-axes are both equal to the radius of the circle. The length of the semi-major axis of an ellipse is related to the semi-minor axis's length through the eccentricity and the semi-latus rectum \ell, as follows: The semi-major axis of a hyperbola is, depending on the convention, plus or minus one half of the distance between the two branches. Thus it is the distance from the center ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frédéric Chopin
Frédéric François Chopin (born Fryderyk Franciszek Chopin; 1 March 181017 October 1849) was a Polish composer and virtuoso pianist of the Romantic period, who wrote primarily for solo piano. He has maintained worldwide renown as a leading musician of his era, one whose "poetic genius was based on a professional technique that was without equal in his generation". Chopin was born in Żelazowa Wola in the Duchy of Warsaw and grew up in Warsaw, which in 1815 became part of Congress Poland. A child prodigy, he completed his musical education and composed his earlier works in Warsaw before leaving Poland at the age of 20, less than a month before the outbreak of the November 1830 Uprising. At 21, he settled in Paris. Thereafterin the last 18 years of his lifehe gave only 30 public performances, preferring the more intimate atmosphere of the salon. He supported himself by selling his compositions and by giving piano lessons, for which he was in high demand. Chopin formed a fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suite Bergamasque
''Suite bergamasque'' ( L. 75) () is a piano suite by Claude Debussy. He began composing it around 1890, at the age of 28, but significantly revised it just before its 1905 publication. The popularity of the 3rd movement, "Clair de lune", has made it one of the composer's most famous works for piano, as well as one of the most famous musical pieces of all-time.Guo, Shulin. A Study of Claude Debussy's Suite Bergamasque: Prelude, Menuet, Clair de Lune and Passepied'. Diss. University of Kansas, 2019. Web. 19 May 2020. Background The composer was initially unwilling to use these relatively early piano compositions because they were not in his mature style, but in 1905 he accepted the offer of a publisher who thought they would be successful, given the fame Debussy had gained in the intervening fifteen years. While it is not known how much of the ''Suite'' was written in 1890 and how much was written in 1905, it is clear that Debussy changed the names of at least two of the pieces. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estampes
''Estampes'' ("Prints"), L.100, is a composition for solo piano by Claude Debussy. It was finished in 1903. The first performance of the work was given by Ricardo Viñes at the Société Nationale de Musique in Paris. This three-movement piano suite is impressionistic. Structure ''Estampes'' is a suite containing three movements: I. ''Pagodes'' ''Pagodes'' evokes Indonesian gamelan music, which Debussy first heard in the Paris World Conference Exhibition of 1889. It makes extensive use of pentatonic scales and mimics traditional Indonesian melodies. Four different pentatonic scales are incorporated within the piece, further defining the imagery of the pagoda. Pagodas are Oriental temples with petite bases that give rise to ornate roofs that typically curve upwards, much like the ascending melodic line (G, C, D) which serves as a repeated motive through different portions of the piece. As this is an Impressionistic work, the goal is not overt expressiveness but instead an e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feux D'artifice
Feux is a commune in the Cher department in the Centre-Val de Loire region of France. Geography A farming area comprising the village and several hamlets situated by the banks of the Benelle river, some northeast of Bourges, at the junction of the D50, D52 and the D210 roads. The river Vauvise and its tributary, the Chantereine, form the eastern border of the commune. Population Sights * The church of St. Anne, dating from the nineteenth century. * The fifteenth-century presbytery. * A feudal motte at the ''Champ de l'Etang''. * Vestiges of a medieval In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the Post-classical, post-classical period of World history (field), global history. It began with t ... castle, now incorporated in a farm, at Marnay. See also * Communes of the Cher department References External links Website about Feux {{authority control Communes of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clair De Lune (Debussy)
''Suite bergamasque'' ( L. 75) () is a piano suite by Claude Debussy. He began composing it around 1890, at the age of 28, but significantly revised it just before its 1905 publication. The popularity of the 3rd movement, "Clair de lune", has made it one of the composer's most famous works for piano, as well as one of the most famous musical pieces of all-time.Guo, Shulin. A Study of Claude Debussy's Suite Bergamasque: Prelude, Menuet, Clair de Lune and Passepied'. Diss. University of Kansas, 2019. Web. 19 May 2020. Background The composer was initially unwilling to use these relatively early piano compositions because they were not in his mature style, but in 1905 he accepted the offer of a publisher who thought they would be successful, given the fame Debussy had gained in the intervening fifteen years. While it is not known how much of the ''Suite'' was written in 1890 and how much was written in 1905, it is clear that Debussy changed the names of at least two of the pieces. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impressionist Music
Impressionism in music was a movement among various composers in Western classical music (mainly during the late 19th and early 20th centuries) whose music focuses on mood and atmosphere, "conveying the moods and emotions aroused by the subject rather than a detailed tone‐picture". "Impressionism" is a philosophical and aesthetic term borrowed from late 19th-century French painting after Monet's '' Impression, Sunrise''. Composers were labeled Impressionists by analogy to the Impressionist painters who use starkly contrasting colors, effect of light on an object, blurry foreground and background, flattening perspective, etc. to make the observer focus their attention on the overall impression.J. Peter Burkholder, Donald Jay Grout and Claude V. Palisca, ''A History of Western Music'', eighth edition (New York: W. W. Norton & Company, 2010). . The most prominent feature in musical Impressionism is the use of "color", or in musical terms, timbre, which can be achieved through ... [...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 asteroids ( |
Observation Arc
In observational astronomy, the observation arc (or arc length) of a Solar System body is the time period between its earliest and latest observations, used for tracing the body's path. It is usually given in days or years. The term is mostly used in the discovery and tracking of asteroids and comets. Arc length has the greatest influence on the accuracy of an orbit. The number and spacing of intermediate observations has a lesser effect. Short arcs A very short arc leaves a high uncertainty parameter. The object might be in one of many different orbits, at many distances from Earth. In some cases, the initial arc was too short to determine if the object was in orbit around the Earth, or orbiting out in the asteroid belt. With a 1-day observation arc, was thought to be a trans-Neptunian dwarf planet, but is now known to be a 1 km main-belt asteroid. With an observation arc of 3 days, was thought to be a Mars-crossing asteroid that could be a threat to Earth, but was later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palomar Observatory
Palomar Observatory is an astronomical research observatory in San Diego County, California, United States, in the Palomar Mountain Range. It is owned and operated by the California Institute of Technology (Caltech). Research time at the observatory is granted to Caltech and its research partners, which include the Jet Propulsion Laboratory (JPL), Yale University, and the National Optical Observatories of China. The observatory operates several telescopes, including the Hale Telescope, the Samuel Oschin Telescope (dedicated to the Zwicky Transient Facility, ZTF), the Palomar Telescope, and the Gattini-IR telescope. Decommissioned instruments include the Palomar Testbed Interferometer and the first telescopes at the observatory, an Schmidt camera from 1936. History Hale's vision for large telescopes and Palomar Observatory Astronomer George Ellery Hale, whose vision created the Palomar Observatory, built the world's largest telescope four times in succession. He publishe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precovery
In astronomy, precovery (short for pre-discovery recovery) is the process of finding the image of an object in images or photographic plates predating its discovery, typically for the purpose of calculating a more accurate orbit. This happens most often with minor planets, but sometimes a comet, a dwarf planet, a natural satellite, or a star is found in old archived images; even exoplanet precovery observations have been obtained. "Precovery" refers to a pre-discovery image; "recovery" refers to imaging of a body which was lost to our view (as behind the Sun), but is now visible again ''(also see lost minor planet and lost comet)''. Orbit determination requires measuring an object's position on multiple occasions. The longer the interval between observations, the more accurately the orbit can be calculated; however, for a newly discovered object, only a few days' or weeks' worth of measured positions may be available, sufficient only for a preliminary (imprecise) orbit calculatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
