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Brontë (Mercurian Crater)
Brontë is a crater on Mercury. It has a diameter of . Its name was adopted by the International Astronomical Union in 1976. Bronte is named for English writers Charlotte Brontë, who lived from 1816 to 1855, Emily Brontë, who lived from 1818 to 1848, and Anne Brontë, who lived from 1820 to 1849, and English writer and artist Branwell Brontë, who lived from 1817 to 1848. Brontë forms a crater pair with Degas immediately to the south. at eSky Brontë is covered with and s from the much younger Degas. Both craters lie within |
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] |
Charlotte Brontë
Charlotte Brontë (, commonly ; 21 April 1816 – 31 March 1855) was an English novelist and poet, the eldest of the three Brontë sisters who survived into adulthood and whose novels became classics of English literature. She enlisted in school at Roe Head in January 1831, aged 14 years. She left the year after to teach her sisters, Emily and Anne, at home, returning in 1835 as a governess. In 1839, she undertook the role of governess for the Sidgwick family, but left after a few months to return to Haworth, where the sisters opened a school but failed to attract pupils. Instead, they turned to writing and they each first published in 1846 under the pseudonyms of Currer, Ellis, and Acton Bell. Although her first novel, '' The Professor'', was rejected by publishers, her second novel, ''Jane Eyre'', was published in 1847. The sisters admitted to their Bell pseudonyms in 1848, and by the following year were celebrated in London literary circles. Charlotte Brontë was the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emily Brontë
Emily Jane Brontë (, commonly ; 30 July 1818 – 19 December 1848) was an English novelist and poet who is best known for her only novel, ''Wuthering Heights'', now considered a classic of English literature. She also published a book of poetry with her sisters Charlotte Brontë, Charlotte and Anne Brontë, Anne titled ''Poems by Currer, Ellis, and Acton Bell, Poems by Currer, Ellis and Acton Bell'' with her own poems finding regard as poetic genius. Emily was the second-youngest of the four surviving Brontë family, Brontë siblings, between the youngest Anne and her brother Branwell Brontë, Branwell. She published under the pen name Ellis Bell. Early life Emily Brontë was born on 30 July 1818 to Maria Branwell and an Irish father, Patrick Brontë. The family was living on Market Street in the village of Thornton, West Yorkshire, Thornton on the outskirts of Bradford, in the West Riding of Yorkshire, England. Emily was the second youngest of six siblings, preceded by Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anne Brontë
Anne Brontë (, commonly ; 17 January 1820 – 28 May 1849) was an English novelist and poet, and the youngest member of the Brontë literary family. Anne Brontë was the daughter of Maria (born Branwell) and Patrick Brontë, a poor Irish clergyman in the Church of England. Anne lived most of her life with her family at the parish of Haworth on the Yorkshire moors. Otherwise, she attended a boarding school in Mirfield between 1836 and 1837, and between 1839 and 1845 lived elsewhere working as a governess. In 1846 she published a book of poems with her sisters and later two novels, initially under the pen name Acton Bell. Her first novel, ''Agnes Grey'', was published in 1847 with ''Wuthering Heights''. Her second novel, ''The Tenant of Wildfell Hall'', was published in 1848. ''The Tenant of Wildfell Hall'' is thought to be one of the first feminist novels. Anne died at 29, most likely of pulmonary tuberculosis. After her death, her sister Charlotte edited ''Agnes Grey'' to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Branwell Brontë
Patrick Branwell Brontë (, commonly ; 26 June 1817 – 24 September 1848) was an English painter and writer. He was the only son of the Brontë family, and brother of the writers Charlotte, Emily, and Anne. Brontë was rigorously tutored at home by his father, and earned praise for his poetry and translations from the classics. However, he drifted between jobs, supporting himself by portrait-painting, and gave way to drug and alcohol addiction, apparently worsened by a failed relationship with a married woman. Brontë died at the age of 31, insisting on standing in his final moments. Youth Branwell Brontë was the fourth of six children and the only son of Patrick Brontë (1777–1861) and his wife, Maria Branwell Brontë (1783–1821). He was born in Thornton, near Bradford, West Riding of Yorkshire, and moved with his family to Haworth when his father was appointed to the perpetual curacy in 1821. While four of his five sisters were sent to Cowan Bridge boarding school, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury (planet)
Mercury is the smallest planet in the Solar System and the closest to the Sun. Its orbit around the Sun takes 87.97 Earth days, the shortest of all the Sun's planets. It is named after the Roman god ' ( Mercury), god of commerce, messenger of the gods, and mediator between gods and mortals, corresponding to the Greek god Hermes (). Like Venus, Mercury orbits the Sun within Earth's orbit as an inferior planet, and its apparent distance from the Sun as viewed from Earth never exceeds 28°. This proximity to the Sun means the planet can only be seen near the western horizon after sunset or the eastern horizon before sunrise, usually in twilight. At this time, it may appear as a bright star-like object, but is more difficult to observe than Venus. From Earth, the planet telescopically displays the complete range of phases, similar to Venus and the Moon, which recurs over its synodic period of approximately 116 days. The synodic proximity of Mercury to Earth makes Mercury most ... [...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] |
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] |
Degas (crater)
Degas is a rayed crater on Mercury at latitude 37.5 N, longitude 127 W. Its diameter is . It was named after the French impressionist painter Edgar Degas in 1979. The rays consist of light colored material blasted out during the crater's formation. Craters older than Degas are covered by the ray material, while younger craters are seen superimposed on the rays. Degas forms a crater pair with Brontë to the north. Both lie near the center of Sobkou Planitia. The crater's floor contains cracks that formed as the pool of impact melt Impact may refer to: * Impact (mechanics), a high force or shock (mechanics) over a short time period * Impact, Texas, a town in Taylor County, Texas, US Science and technology * Impact crater, a meteor crater caused by an impact event * Impac ... cooled and shrank. The high-reflectance material on the walls and in the central portion of the crater probably has a composition distinct from that of the crater floor and surroundings. The illumi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ejecta
Ejecta (from the Latin: "things thrown out", singular ejectum) are particles ejected from an area. In volcanology, in particular, the term refers to particles including pyroclastic materials (tephra) that came out of a volcanic explosion and magma eruption volcanic vent, or crater, has traveled through the air or under water, and fell back on the ground surface or on the ocean floor. Volcanology Typically in volcanology, ejecta is a result of explosive eruptions. In an explosive eruption, large amounts of gas are dissolved in extremely viscous lava; this lava froths to the surface until the material is expelled rapidly due to the trapped pressure. Sometimes in such an event a lava plug or volcanic neck forms from lava that solidifies inside a volcano's vent, causing heat and pressure to build up to an extreme with no way to escape. When the blockage breaks and cannot sustain itself any longer, a more violent eruption occurs, which allows materials to be ejected out of the volc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secondary Crater
Secondary craters are impact craters formed by the ejecta that was thrown out of a larger crater. They sometimes form radial crater chains. In addition, secondary craters are often seen as clusters or rays surrounding primary craters. The study of secondary craters exploded around the mid-twentieth century when researchers studying surface craters to predict the age of planetary bodies realized that secondary craters contaminated the crater statistics of a body's crater count. Formation When a velocity-driven extraterrestrial object impacts a relatively stationary body, an impact crater forms. Initial crater(s) to form from the collision are known as primary craters or impact craters. Material expelled from primary craters may form secondary craters (secondaries) under a few conditions: # Primary craters must already be present. # The gravitational acceleration of the extraterrestrial body must be great enough to drive the ejected material back toward the surface. # The velocity b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sobkou Planitia
Sobkou Planitia is a large basin on the planet Mercury. It is named after the ancient Egyptian messenger deity Sobkou (whose name is more usually transliterated Sobek). He was associated by the Egyptians with the planet Mercury. History Sobkou Planitia was discovered after Sobkou, the basin, was recognized as a Pre-Tolstojan basin on images from ''Mariner 10''. Geology The most prominent features within the plain itself are a pair of craters, similar in size to one another, known as Brontë and Degas. Brontë is the older of the two craters, and the impact that formed Degas has overlapped the edges of that older crater and spread a spray of rays across the southern regions of Sobkou Planitia and beyond. According to Peter Grego's book ''Venus and Mercury and how to observe them'' Sobkou Planitia is free of scarps, ridges, fractures and valleys. Its southeastern edge is bordered by the scarp Heemskerck Rupes which is about 300 km long which along part of the line of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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