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Johann Georg Palitzsch
Johann Georg Palitzsch (11 June 1723 – 21 February 1788) was a German astronomer who became famous for recovering Comet 1P/Halley (better known as Halley's Comet) on Christmas Day, 1758.Hoffmann, Christian Gotthold (1759 January 20) "Nachricht von dem Kometen, welcher seit dem 25. December gesehen wird" (News of the comet, which has been seen since the 25th of December), ''Dreßdnischen Gelehrten Anzeigen'', 2nd issue. The periodic nature of this comet had been deduced by its namesake Edmond Halley in 1705, but Halley had died before seeing if his prediction would come true. Raised to become a successful farmer under a strict stepfather, Palitzsch secretly studied as much astronomy as he could from the books he could afford. He learned contemporary astronomy from the book “Vorhof der Sternwissenschaft” (“The Forecourt of Astronomy”) by Christian Pescheck. He learned Latin and, at age 21, inherited the farm, which allowed him to construct his own botanical garde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Georg Palitzsch
Johann Georg Palitzsch (11 June 1723 – 21 February 1788) was a German astronomer who became famous for recovering Comet 1P/Halley (better known as Halley's Comet) on Christmas Day, 1758.Hoffmann, Christian Gotthold (1759 January 20) "Nachricht von dem Kometen, welcher seit dem 25. December gesehen wird" (News of the comet, which has been seen since the 25th of December), ''Dreßdnischen Gelehrten Anzeigen'', 2nd issue. The periodic nature of this comet had been deduced by its namesake Edmond Halley in 1705, but Halley had died before seeing if his prediction would come true. Raised to become a successful farmer under a strict stepfather, Palitzsch secretly studied as much astronomy as he could from the books he could afford. He learned contemporary astronomy from the book “Vorhof der Sternwissenschaft” (“The Forecourt of Astronomy”) by Christian Pescheck. He learned Latin and, at age 21, inherited the farm, which allowed him to construct his own botanical garde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomer
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational and theoretical. Observational astronomers make direct observations of celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate models of things that cannot be observed. Because it takes millions to billions of years for a system of stars or a galaxy to complete a life cycle, astronomers must observe sna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halley's Comet
Halley's Comet or Comet Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 75–79 years. Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and thus the only naked-eye comet that can appear twice in a human lifetime. Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061. Halley's periodic returns to the inner Solar System have been observed and recorded by astronomers around the world since at least 240 BC. But it was not until 1705 that the English astronomer Edmond Halley understood that these appearances were reappearances of the same comet. As a result of this discovery, the comet is named after Halley. During its 1986 visit to the inner Solar System, Halley's Comet became the first comet to be observed in detail by spacecraft, providing the first observational data on the structure of a comet nucleus and the mechanism of coma and tail f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edmond Halley
Edmond (or Edmund) Halley (; – ) was an English astronomer, mathematician and physicist. He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720. From an observatory he constructed on Saint Helena in 1676–77, Halley catalogued the southern celestial hemisphere and recorded a transit of Mercury across the Sun. He realised that a similar transit of Venus could be used to determine the distances between Earth, Venus, and the Sun. Upon his return to England, he was made a fellow of the Royal Society, and with the help of King Charles II, was granted a master's degree from Oxford. Halley encouraged and helped fund the publication of Isaac Newton's influential ''Philosophiæ Naturalis Principia Mathematica'' (1687). From observations Halley made in September 1682, he used Newton's laws of motion to compute the periodicity of Halley's Comet in his 1705 ''Synopsis of the Astronomy of Comets''. It was named after him upon its predicted return in 1758, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Augustus I Of Saxony
pl, Fryderyk August Józef Maria Antoni Jan Nepomucen Alojzy Ksawery , image = Frederick Augustus I of Saxony by Marcello Bacciarelli (ca 1808-1809).png , caption = Portrait by Marcello Bacciarelli (1809) , succession = King of Saxony , coronation = 20 December 1806 , reign = , successor = Anthony , regent = Maria Antonia of Bavaria , succession1 = Grand Duke of the Duchy of Warsaw , reign1 = 9 June 1807 – 22 May 1815 , succession2 = Elector of Saxony , reign2 = 17 December 1763 – , predecessor2 = Frederick Christian , spouse= Amalie of Zweibrücken-Birkenfeld , issue= Princess Maria Augusta of Saxony , house= Wettin , father=Frederick Christian, Elector of Saxony , mother= Princess Maria Antonia of Bavaria , birth_date = , birth_place = Dresden, Electorate of Saxony, Holy Roman Empire , death_date = , death_place = Dresden, Kingdom of Saxony, German Confederation , place of burial=Dresden Cathedral, Dresden , religion= Roman Catholicism , signat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seven Years' War
The Seven Years' War (1756–1763) was a global conflict that involved most of the European Great Powers, and was fought primarily in Europe, the Americas, and Asia-Pacific. Other concurrent conflicts include the French and Indian War (1754–1763), the Carnatic Wars and the Anglo-Spanish War (1762–1763). The opposing alliances were led by Great Britain and France respectively, both seeking to establish global pre-eminence at the expense of the other. Along with Spain, France fought Britain both in Europe and overseas with land-based armies and naval forces, while Britain's ally Prussia sought territorial expansion in Europe and consolidation of its power. Long-standing colonial rivalries pitting Britain against France and Spain in North America and the West Indies were fought on a grand scale with consequential results. Prussia sought greater influence in the German states, while Austria wanted to regain Silesia, captured by Prussia in the previous war, and to conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palitzsch (crater)
Palitzsch is a lunar impact crater that is located in the southeast part of the Moon, near the southeast rim of the crater Petavius. Just to the southwest of Palitzsch is Hase, while to the east-southeast is Legendre. The northeast rim of Palitzsch forms the southern end of Vallis Palitzsch, a lunar valley that follows the eastern rim of Petavius for a distance of about 110 kilometers. The crater rim is relatively low and inconspicuous, while the floor forms a depression in the surface that follows the contours of the neighboring valley. Satellite craters By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Palitzsch. Due to its rays, Palitzsch B is mapped as part of the Copernican System.The geologic history of the Moon, 1987, Wilhelms, Don E.; with sections by McCauley, John F.; Trask, Newell J. USGS The United States Geological Survey (USGS), formerly simply known as the Geological S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vallis Palitzsch
The Vallis Palitzsch is a geological structure of the surface of the Moon. The name of the valley was given in 1964 by the International Astronomical Union and comes from the adjacent crater, which in turn was named after the German astronomer Johann Georg Palitzsch (1723–1788). References Valleys on the Moon {{Valleys on the Moon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synod ... [...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 co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
11970 Palitzsch
Year 1197 ( MCXCVII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events By place Europe * Spring – Emperor Henry VI travels to Italy to persuade Pope Celestine III to crown his infant son Frederick II, who has been elected "King of the Romans" at Frankfurt. * King Richard I (the Lionheart) has Château Gaillard (Normandy) built on the Seine River as he fights to restore Angevin power in northern France (approximate date). * Summer – Henry VI takes cruel measures to put down an insurrection in Sicily and southern Italy, which has been provoked by the oppression of his German officials. * September 28 – Henry VI dies of malaria at Messina (also possibly poisoned), while preparing an expedition against the Byzantine usurper Alexios III (Angelos). * Autumn – A German civil war begins upon the sudden death of Henry VI. Henry's brother, Philip of Swabia, takes over the family lands and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1723 Births
Seventeen or 17 may refer to: *17 (number), the natural number following 16 and preceding 18 * one of the years 17 BC, AD 17, 1917, 2017 Literature Magazines * ''Seventeen'' (American magazine), an American magazine * ''Seventeen'' (Japanese magazine), a Japanese magazine Novels * ''Seventeen'' (Tarkington novel), a 1916 novel by Booth Tarkington *''Seventeen'' (''Sebuntiin''), a 1961 novel by Kenzaburō Ōe * ''Seventeen'' (Serafin novel), a 2004 novel by Shan Serafin Stage and screen Film * ''Seventeen'' (1916 film), an American silent comedy film *'' Number Seventeen'', a 1932 film directed by Alfred Hitchcock * ''Seventeen'' (1940 film), an American comedy film *''Eric Soya's '17''' (Danish: ''Sytten''), a 1965 Danish comedy film * ''Seventeen'' (1985 film), a documentary film * ''17 Again'' (film), a 2009 film whose working title was ''17'' * ''Seventeen'' (2019 film), a Spanish drama film Television * ''Seventeen'' (TV drama), a 1994 UK dramatic short starring Christi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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