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Africanus Horton (crater)
Africanus Horton is a crater on Mercury. It was named by the IAU in 1976, after Africanus Horton, a Creole African nationalist writer and an esteemed medical surgeon in the British Army from Freetown, Sierra Leone. The crater Andal (crater), Andal is to the northeast of Africanus Horton, and Shevchenko is to the southwest. The crater Rameau Jean-Philippe Rameau (; – ) was a French composer and music theorist. Regarded as one of the most important French composers and music theorists of the 18th century, he replaced Jean-Baptiste Lully as the dominant composer of French opera an ... and Discovery Rupes are to the southeast. References Impact craters on Mercury {{Mercury-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MESSENGER
''MESSENGER'' was a NASA robotic space probe that orbited the planet Mercury between 2011 and 2015, studying Mercury's chemical composition, geology, and magnetic field. The name is a backronym for "Mercury Surface, Space Environment, Geochemistry, and Ranging", and a reference to the messenger god Mercury from Roman mythology. ''MESSENGER'' was launched aboard a Delta II rocket in August 2004. Its path involved a complex series of flybys – the spacecraft flew by Earth once, Venus twice, and Mercury itself three times, allowing it to decelerate relative to Mercury using minimal fuel. During its first flyby of Mercury in January 2008, ''MESSENGER'' became the second mission, after Mariner 10 in 1975, to reach Mercury. ''MESSENGER'' entered orbit around Mercury on March 18, 2011, becoming the first spacecraft to do so. It successfully completed its primary mission in 2012. Following two mission extensions, the spacecraft used the last of its maneuvering propellant to deo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africanus Horton
Africanus Horton (1835–1883), also known as James Beale, was a Krio African nationalist writer and an esteemed medical surgeon in the British Army from Freetown, Sierra Leone. Africanus Horton was a surgeon, scientist, soldier, and a political thinker who worked toward African independence a century before it occurred. In his varied career, he served as a physician, an officer in the British Army, a banker, and a mining entrepreneur. In addition, he wrote a number of books and essays, the most widely remembered of which is his 1868 ''Vindication of the African Race'', an answer to the white racist authors emerging in Europe. His writings look ahead to African self-government, anticipating many events of the 1950s and 1960s, and Horton is often seen as one of the founders of African nationalism and has been called "the father of modern African political thought". He wrote a book entitled ''West African Countries and Peoples'' (1868). A crater on Mercury is named after him. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africanus Horton Crater EN0243800304M EN0243800306M
Africanus is Latin for "African". It may refer to: People Ancient Roman cognomen * Africanus Fabius Maximus, the younger son of Quintus Fabius Maximus (consul 45 BC) and an unknown wife * Cresconius Africanus, a Latin canon lawyer of uncertain date and place * Julius Africanus, an orator in the time of Nero * Titus Sextius Africanus, a censor of Gaul in the 1st century * Lucius Apuleius ''Africanus'' Madaurensis (c. 124–c. 170 CE), a Latin-language prose writer * Titus Sextius Cornelius Africanus, a consul in the 2nd century under Trajan * Sextus Caecilius Africanus, a 2nd-century Roman legal scholar * Scipio Africanus (other) * Sextus Julius Africanus, a Christian traveller and historian of the 3rd century * Junillus Africanus (fl. 541–549), a Quaestor of the Sacred Palace in the court of the Byzantine Emperor Justinian I * Constantine the African i.e. Constantinus Africanus (11th century) Given name or surname * George Africanus (1763—1834), a West African ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Craters On Mercury
This is a list of named craters on Mercury, the innermost planet of the Solar System ''(for other features, see list of geological features on Mercury)''. Most Mercurian craters are named after famous writers, artists and composers. According to the rules by IAU's Working Group for Planetary System Nomenclature, all new craters must be named after an artist that was famous for more than fifty years, and dead for more than three years, before the date they are named. Craters larger than 250 km in diameter are referred to as "basins" ''(also see )''. As of 2021, there are 414 named Mercurian craters, a small fraction of the total number of named Solar System craters, most of which are lunar, Martian and Venerian craters. Other, non-planetary bodies with numerous named craters include Callisto ( 141), Ganymede ( 131), Rhea (128), Vesta (90), Ceres (90), Dione (73), Iapetus (58), Enceladus (53), Tethys (50) and Europa ( 41). For a full list, ''see List of craters in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded in 1919 and is based in Paris, France. The IAU is composed of individual members, who include both professional astronomers and junior scientists, and national members, such as professional associations, national societies, or academic institutions. Individual members are organised into divisions, committees, and working groups centered on particular subdisciplines, subjects, or initiatives. As of 2018, the Union had over 13,700 individual members, spanning 90 countries, and 82 national members. Among the key activities of the IAU is serving as a forum for scientific conferences. It sponsors nine annual symposia and holds a triannual General Assembly that sets policy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Leone Creole People
The Sierra Leone Creole people ( kri, Krio people) are an ethnic group of Sierra Leone. The Sierra Leone Creole people are lineal descendant, descendants of freed African-American, Afro-Caribbean, and Liberated African slaves who settled in the Western Area of Sierra Leone between 1787 and about 1885. The colony was established by the British, supported by abolitionists, under the Sierra Leone Company as a place for freedmen. The settlers called their new settlement Freetown. Originally published by Longman & Dalhousie University Press (1976). Today, the Sierra Leone Creoles are 1.2 percent of the population of Sierra Leone. Like their Americo-Liberian neighbours and sister ethnic group in Liberia, the Creoles of Sierra Leone have varying degrees of European ancestry.Colonial Office Brief: CO554/2884, Note on the Attorney General's 'Note of the Supreme Court Judgement', 10 August 1960, ''op.cit.'' In Sierra Leone, some of the settlers intermarried with English colonial re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Nationalism
African nationalism is an umbrella term which refers to a group of political ideologies in sub-Saharan Africa, which are based on the idea of national self-determination and the creation of nation states.African nationalism The ideology emerged under European colonial rule during the 19th and 20th centuries and was loosely inspired by nationalist ideas from Europe. Originally, African was based on demands for self-determination and played an important role in forcin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freetown
Freetown is the capital and largest city of Sierra Leone. It is a major port city on the Atlantic Ocean and is located in the Western Area of the country. Freetown is Sierra Leone's major urban, economic, financial, cultural, educational and political centre, as it is the seat of the Government of Sierra Leone. The population of Freetown was 1,055,964 at the 2015 census. The city's economy revolves largely around its harbour, which occupies a part of the estuary of the Sierra Leone River in one of the world's largest natural deep water harbours. Although the city has traditionally been the homeland of the Sierra Leone Creole people, the population of Freetown is ethnically, culturally, and religiously diverse. The city is home to a significant population of all of Sierra Leone's ethnic groups, with no single ethnic group forming more than 27% of the city's population. As in virtually all parts of Sierra Leone, the Krio language of the Sierra Leone Creole people is Freetown's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Leone
Sierra Leone,)]. officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered by Liberia to the southeast and Guinea surrounds the northern half of the nation. Covering a total area of , Sierra Leone has a tropical climate, with diverse environments ranging from savanna to rainforests. The country has a population of 7,092,113 as of the 2015 census. The capital and largest city is Freetown. The country is divided into five administrative regions, which are subdivided into Districts of Sierra Leone, 16 districts. Sierra Leone is a constitutional republic with a unicameral parliament and a directly elected executive president, president serving a five-year term with a maximum of two terms. The current president is Julius Maada Bio. Sierra Leone is a Secular state, secular nation with Constitution of Sierra Leone, the constitution providing for the separation of state and religion and freedom of conscience (which includes freedom of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andal (crater)
Andal is a crater on Mercury. Its name was adopted by the International Astronomical Union in 1976. Andal is named for the Tamil writer Andal, who lived in the 10th century. The crater Africanus Horton Africanus Horton (1835–1883), also known as James Beale, was a Krio African nationalist writer and an esteemed medical surgeon in the British Army from Freetown, Sierra Leone. Africanus Horton was a surgeon, scientist, soldier, and a politic ... is to the southwest of Andal. References Impact craters on Mercury {{Mercury-planet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shevchenko (crater)
Shevchenko is a crater on Mercury. Its name was adopted by the International Astronomical Union (IAU) in 1976, for Ukrainian poet Taras Hryhorovych Shevchenko. On the west rim of Shevchenko is an unnamed smaller crater that has sharp features and contains hollows. To the southwest of Shevchenko is Khansa crater. To the northeast is Africanus Horton, and to the east are Rameau and the Discovery Rupes Discovery Rupes is an escarpment on Mercury approximately long and high, located at latitude 56.3 S and longitude 38.3 W. It was formed by a thrust fault, thought to have occurred due to the shrinkage of the planet's core as it cooled over ti .... Shevchenko crater MESSENGER NAC mosaic.jpg, NAC mosaic with north at left Unnamed crater near Shevchenko EN1066019509M.jpg, Unnamed crater with hollows west of Shevchenko crater References {{Mercury (planet) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
