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George Herbig
George Howard Herbig (January 2, 1920 – October 12, 2013) was an American astronomer at the University of Hawaii Institute for Astronomy. He is perhaps best known for the discovery of Herbig–Haro objects. Background Born in 1920 in Wheeling, West Virginia, Herbig received his Ph.D in 1948 at the University of California, Berkeley; his dissertation is titled ''A Study of Variable Stars in Nebulosity''. Career His specialty was stars at an early stage of evolution (a class of intermediate mass pre–main sequence stars are named Herbig Ae/Be stars after him) and the interstellar medium. He was perhaps best known for his discovery, with Guillermo Haro, of the Herbig–Haro objects; bright patches of nebulosity excited by bipolar outflow from a star being born. Herbig also made prominent contributions to the field of diffuse interstellar band (DIB) research, especially through a series of nine articles published between 1963 and 1995 entitled "The diffuse interstellar bands." ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheeling, West Virginia
Wheeling is a city in the U.S. state of West Virginia. Located almost entirely in Ohio County, of which it is the county seat, it lies along the Ohio River in the foothills of the Appalachian Mountains and also contains a tiny portion extending into Marshall County. Wheeling is located about 60 miles (96 km) west of Pittsburgh and is the principal city of the Wheeling metropolitan area. As of the 2020 census, the metro area had a population of 145,205, and the city itself had a population of 27,062. Wheeling was originally a settlement in the British colony of Virginia, and later the second-largest city in the Commonwealth of Virginia. During the American Civil War, Wheeling was the host of the Wheeling Conventions that led to the formation of West Virginia, and it was the first capital of the new state. Due to its location along major transportation routes, including the Ohio River, National Road, and the B&O Railroad, Wheeling became a manufacturing center in the late n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre–main Sequence Star
A pre-main-sequence star (also known as a PMS star and PMS object) is a star in the stage when it has not yet reached the main sequence. Earlier in its life, the object is a protostar that grows by acquiring mass from its surrounding envelope of interstellar dust and gas. After the protostar blows away this envelope, it is optically visible, and appears on the stellar birthline in the Hertzsprung-Russell diagram. At this point, the star has acquired nearly all of its mass but has not yet started hydrogen burning (i.e. nuclear fusion of hydrogen). The star then contracts, its internal temperature rising until it begins hydrogen burning on the zero age main sequence. This period of contraction is the pre-main sequence stage. An observed PMS object can either be a T Tauri star, if it has fewer than 2 solar masses (), or else a Herbig Ae/Be star, if it has 2 to 8 . Yet more massive stars have no pre-main-sequence stage because they contract too quickly as protostars. By the time th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteroid
An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere. Of the roughly one million known asteroids the greatest number are located between the orbits of Mars and Jupiter, approximately 2 to 4 AU from the Sun, in the main asteroid belt. Asteroids are generally classified to be of three types: C-type, M-type, and S-type. These were named after and are generally identified with carbonaceous, metallic, and silicaceous compositions, respectively. The size of asteroids varies greatly; the largest, Ceres, is almost across and qualifies as a dwarf planet. The total mass of all the asteroids combined is only 3% that of Earth's Moon. The majority of main belt asteroids follow slightly elliptical, stable orbits, revolving in the same direction as the Earth and taking from three to six years to comple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Astronomical Society
The Canadian Astronomical Society (CASCA; french: link=yes, La Société Canadienne d'Astronomie) is a Canadian society of professional astronomers, founded in 1971 and incorporated in 1983. The society is devoted to the promotion and advancement of knowledge of the universe through research and education, and its membership is open to people with a professional involvement in astronomy and related sciences. The main activities of the Society are its annual scientific meetings, the planning and realization of scientific projects, the support of the scientific activities of its members, and the dissemination of related information among members and other interested people. History Before World War II, there were few professional astronomers in Canada. There were two government-run, national observatories, the Dominion Observatory, which opened in 1905 in Ottawa, Ontario and the Dominion Astrophysical Observatory, which opened in 1918 in Saanich, British Columbia. In addition, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bruce Medal
The Catherine Wolfe Bruce Gold Medal is awarded every year by the Astronomical Society of the Pacific for outstanding lifetime contributions to astronomy. It is named after Catherine Wolfe Bruce, an American patroness of astronomy, and was first awarded in 1898. List of Bruce Medalists SourceAstronomical Society of the Pacific * 1898 – Simon Newcomb * 1899 – Arthur Auwers * 1900 – David Gill * 1902 – Giovanni V. Schiaparelli * 1904 – William Huggins * 1906 – Hermann Carl Vogel * 1908 – Edward C. Pickering * 1909 – George William Hill * 1911 – Henri Poincaré * 1913 – Jacobus C. Kapteyn * 1914 – Oskar Backlund * 1915 – William Wallace Campbell * 1916 – George Ellery Hale * 1917 – Edward Emerson Barnard * 1920 – Ernest W. Brown * 1921 – Henri A. Deslandres * 1922 – Frank W. Dyson * 1923 – Benjamin Baillaud * 1924 – Arthur Stanley Eddington * 1925 – Henry Norris Russell * 1926 – Robert G. Aitken * 1927 – Herbert Hall Turner * 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Norris Russell Lectureship
The Henry Norris Russell Lectureship is awarded each year by the American Astronomical Society in recognition of a lifetime of excellence in astronomical research. The idea for the lectureship came from then society President Harlow Shapley in 1945, who led the fund raising drive to collect $10,000 from the membership. One of the major contributors was the Mexican Ambassador to the United States, as Russell had been an important representative at the dedication ceremony for the Mexican National Observatory. The goal was reached in December 1946, using not a little amount of coercive language by Shapley. The first Russell lecturer was, naturally, fellow American astronomer Henry Norris Russell, for whom the award is named. Russell gave a lecture titled "The Royal Road of Eclipses" concerning eclipsing binary stars. Previous lecturers This list of lecturers is from the American Astronomical Society's website. See also * List of astronomy awards This list of astronomy awards is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max-Planck-Institut Für Astronomie
The Max-Planck-Institut für Astronomie (Max Planck Institute for Astronomy, MPIA) is a research institute of the Max Planck Society (MPG). It is located in Heidelberg, Baden-Württemberg, Germany near the top of the Königstuhl, adjacent to the historic Landessternwarte Heidelberg-Königstuhl astronomical observatory. The institute primarily conducts basic research in the natural sciences in the field of astronomy. In addition to its own astronomical observations and astronomical research, the Institute is also actively involved in the development of observation instruments. The instruments or parts of them are manufactured in the institute's own workshops. History The founding of the institute in 1967 resulted from the insight that a supra-regional institute equipped with powerful telescopes was necessary in order to conduct internationally competitive astronomical research. Hans Elsässer, an astronomer, became the founding director in 1968. In February 1969, a first grou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Astronomical Society
The American Astronomical Society (AAS, sometimes spoken as "double-A-S") is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC. The primary objective of the AAS is to promote the advancement of astronomy and closely related branches of science, while the secondary purpose includes enhancing astronomy education and providing a political voice for its members through lobbying and grassroots activities. Its current mission is to enhance and share humanity's scientific understanding of the universe as a diverse and inclusive astronomical community. History The society was founded in 1899 through the efforts of George Ellery Hale. The constitution of the group was written by Hale, George Comstock, Edward Morley, Simon Newcomb and Edward Charles Pickering. These men, plus four others, were the first Executive Council of the society; Newcomb was the first president. The initial membership was 114. The AAS name of the so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helen B
Helen may refer to: People * Helen of Troy, in Greek mythology, the most beautiful woman in the world * Helen (actress) (born 1938), Indian actress * Helen (given name), a given name (including a list of people with the name) Places * Helen, Georgia, United States, a small city * Helen, Maryland, United States, an unincorporated place * Helen, Washington, an unincorporated community in Washington state, US * Helen, West Virginia, a census-designated place in Raleigh County * Helen Falls, a waterfall in Ontario, Canada * Lake Helen (other), several places called Helen Lake or Lake Helen * Helen, an ancient name of Makronisos island, Greece * The Hellenic Republic, Greece Arts, entertainment, and media * ''Helen'' (album), a 1981 Grammy-nominated album by Helen Humes * ''Helen'' (2008 film), a British drama starring Annie Townsend * ''Helen'' (2009 film), an American drama film starring Ashley Judd * ''Helen'' (2017 film), an Iranian drama film * ''Helen'' (2019 fil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
