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1961 Dufour
1961 Dufour ( ''prov. designation'': ) is a large background asteroid, approximately in diameter, located in the outer region of the asteroid belt. It was discovered on 19 November 1973, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, and later named for 19th-century Swiss General Henri Dufour. Classification and orbit ''Dufour'' is a dark C-type asteroid, that orbits the Sun in the outer main-belt at a distance of 2.8–3.6 AU once every 5 years and 8 months (2,082 days). Its orbit has an eccentricity of 0.12 and an inclination of 7 ° with respect to the ecliptic. It was first identified as at Simeiz Observatory in 1927. The body's observation arc begins 21 years prior to its official discovery at Zimmerwald, when it was identified as at McDonald Observatory in 1952. Naming This minor planet is named after Swiss General Henri Dufour (1787–1875), who lead the Swiss forces to victory against the renegade catholic cantons in the So ... [...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] |
Ecliptic
The ecliptic or ecliptic plane is the orbital plane of the Earth around the Sun. From the perspective of an observer on Earth, the Sun's movement around the celestial sphere over the course of a year traces out a path along the ecliptic against the background of stars. The ecliptic is an important reference plane and is the basis of the ecliptic coordinate system. Sun's apparent motion The ecliptic is the apparent path of the Sun throughout the course of a year. Because Earth takes one year to orbit the Sun, the apparent position of the Sun takes one year to make a complete circuit of the ecliptic. With slightly more than 365 days in one year, the Sun moves a little less than 1° eastward every day. This small difference in the Sun's position against the stars causes any particular spot on Earth's surface to catch up with (and stand directly north or south of) the Sun about four minutes later each day than it would if Earth did not orbit; a day on Earth is therefore 24 hours ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mont Blanc
Mont Blanc (french: Mont Blanc ; it, Monte Bianco , both meaning "white mountain") is the highest mountain in the Alps and Western Europe, rising above sea level. It is the second-most prominent mountain in Europe, after Mount Elbrus, and it is the eleventh most prominent mountain summit in the world. It gives its name to the Mont Blanc massif which straddles parts of France, Italy and Switzerland. Mont Blanc's summit lies on the watershed line between the valleys of Ferret and Veny in Italy, and the valleys of Montjoie, and Arve in France. Ownership of the summit area has long been a subject of dispute between France and Italy. The Mont Blanc massif is popular for outdoor activities like hiking, climbing, trail running and winter sports like skiing, and snowboarding. The most popular climbing route to the summit of Mont Blanc is the Goûter Route, which typically takes two days. The three towns and their communes which surround Mont Blanc are Courmayeur in Aosta Valle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountains Of The Alps Above 3000 M
This page tabulates only the most prominent mountains of the Alps, selected for having a topographic prominence of ''at least'' , and all of them exceeding in height. Although the list contains 537 summits, some significant alpine mountains are necessarily excluded for failing to meet the stringent prominence criterion. The list of these most prominent mountains is continued down to 2500 m elevation at List of prominent mountains of the Alps (2500–2999 m) and down to 2000 m elevation on List of prominent mountains of the Alps (2000–2499 m). All such mountains are located in either France, Italy, Switzerland, Liechtenstein, Austria, Germany or Slovenia, even in some lower regions. Together, these three lists include all 44 ultra-prominent peaks of the Alps, with 19 ultras over 3000m on this page. For a definitive list of all 82 the highest peaks of the Alps, as identified by the International Climbing and Mountaineering Federation (UIAA), and often referred to as the 'Alpi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dufourspitze
, it, Punta Dufour, rm, Piz da Dufour , translation = Peak Dufour, Highest Peak, Large Horn , photo = Monte Rosa summit.jpg , photo_size = , photo_caption = From the peak to the southeast towards Italy, the Dunantspitze in the rear hides the 18-metre lower Grenzgipfel ( en, Border Summit) , elevation_m = 4634 , elevation_ref = , prominence_m = 2165 , prominence_ref = Great St Bernard Pass Ranked 7th in the Alps , isolation_km = 78.3 , isolation_ref = M Blanc de Courmayeur , map = Switzerland#Canton of Valais#Alps , map_caption = Location in Switzerland , label_position = top , listing = Country high point Canton high pointUltraSeven Second Summits , region_type = Canton , region = Valais , country = Switzerland , range = Pennine Alps , coordinates = , range_coordinates = , topo = Swisstopo 1348 Zermatt , first_ascent = 1 Augu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planet Circulars
The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory. Function The Minor Planet Center is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids), calculating their orbits and publishing this information via the '' Minor Planet Circulars''. Under the auspices of the International Astronomical Union (IAU), it operates at the Smithsonian Astrophysical Observatory, which is part of the Center for Astrophysics along with the Harvard College Observatory. The MPC runs a number of free online services for observers to assist them in observing minor planets and comets. The complete catalogue of minor planet orbits (sometimes referred to as the "Minor Planet Catalogue") may also be freely downloaded. In addition to astrometric data, the MPC collect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planet Center
The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory. Function The Minor Planet Center is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids), calculating their orbits and publishing this information via the '' Minor Planet Circulars''. Under the auspices of the International Astronomical Union (IAU), it operates at the Smithsonian Astrophysical Observatory, which is part of the Center for Astrophysics along with the Harvard College Observatory. The MPC runs a number of free online services for observers to assist them in observing minor planets and comets. The complete catalogue of minor planet orbits (sometimes referred to as the "Minor Planet Catalogue") may also be freely downloaded. In addition to astrometric data, the MPC collect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geodetic Survey
Geodesy ( ) is the Earth science of accurately measuring and understanding Earth's figure ( geometric shape and size), orientation in space, and gravity. The field also incorporates studies of how these properties change over time and equivalent measurements for other planets (known as ''planetary geodesy''). Geodynamical phenomena, including crustal motion, tides and polar motion, can be studied by designing global and national control networks, applying space geodesy and terrestrial geodetic techniques and relying on datums and coordinate systems. The job title is geodesist or geodetic surveyor. History Definition The word geodesy comes from the Ancient Greek word ''geodaisia'' (literally, "division of Earth"). It is primarily concerned with positioning within the temporally varying gravitational field. Geodesy in the German-speaking world is divided into "higher geodesy" ( or ), which is concerned with measuring Earth on the global scale, and "practical geodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swiss Federal Office Of Topography
Swisstopo is the official name for the Swiss Federal Office of Topography (in German language, German: ''Bundesamt für Landestopografie''; French language, French: ''Office fédéral de topographie''; Italian language, Italian: ''Ufficio federale di topografia''; Romansh language, Romansh: ''Uffizi federal da topografia''), Switzerland's national mapping agency. The current name was made official in 2002. It had been in use as the domain name for the institute's homepage, swisstopo.ch, since 1997. Maps The main class of products produced by Swisstopo are topographical maps on seven different Scale (map), scales. Swiss maps have been praised for their accuracy and quality. Regular maps * 1:25.000. This is the most detailed map, useful for many purposes. Those are popular with tourists, especially for famous areas like Zermatt and St. Moritz. These maps cost CHF 13.50 each (2004). 208 maps on this scale are published at regular intervals. The first map published on this scale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Committee Of The Red Cross
The International Committee of the Red Cross (ICRC; french: Comité international de la Croix-Rouge) is a humanitarian organization which is based in Geneva, Switzerland, and it is also a three-time Nobel Prize Laureate. State parties (signatories) to the Geneva Convention of 1949 and its Additional Protocols of 1977 ( Protocol I, Protocol II) and 2005 have given the ICRC a mandate to protect victims of international and internal armed conflicts. Such victims include war wounded persons, prisoners, refugees, civilians, and other non-combatants. The ICRC is part of the International Red Cross and Red Crescent Movement, along with the International Federation of Red Cross and Red Crescent Societies (IFRC) and 192 National Societies. It is the oldest and most honoured organization within the movement and one of the most widely recognized organizations in the world, having won three Nobel Peace Prizes (in 1917, 1944, and 1963). History Solferino, Henry Dunant and the foundat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonderbund War
The Sonderbund War (german: Sonderbundskrieg, fr , Guerre du Sonderbund, it , Guerra del Sonderbund) of November 1847 was a civil war in Switzerland, then still a relatively loose confederacy of cantons. It ensued after seven Catholic cantons formed the ("separate alliance") in 1845 to protect their interests against a centralization of power. The war concluded with the defeat of the Sonderbund. It resulted in the emergence of Switzerland as a federal state, concluding the period of political "restoration and regeneration" in Switzerland. The Sonderbund consisted of the cantons of Lucerne, Fribourg, Valais, Uri, Schwyz, Unterwalden and Zug, all predominantly Catholic and governed by conservative administrations. The cantons of Ticino and Solothurn, also predominantly Catholic but governed by liberal administrations, did not join the alliance. After the (Federal Diet) declared the Sonderbund unconstitutional (October 1847) and ordered it dissolved by force, General Guillaum ... [...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 ( |
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