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Franz Brünnow
Franz Friedrich Ernst Brünnow (18 November 1821 – 20 August 1891) was a German astronomer. He was the first foreigner to become director of an American observatory, serving as director of Detroit Observatory (at the University of Michigan) from 1854 to 1863. He played a major role in establishing the study of astronomy in the United States at a time when the only other serious faculty was run by Benjamin Peirce at Harvard University. He introduced the teaching of rigorous German analytical methods and trained a number of students who went on to further American astronomy, including Asaph Hall and James Craig Watson (the latter succeeded him as director of Detroit Observatory). In addition, Charles Augustus Young learned German astronomical methods from Brünnow although he did not attend the University of Michigan. He succeeded William R Hamilton as Andrews Professor of Astronomy at Trinity College Dublin and Royal Astronomer of Ireland at Dunsink Observatory. Early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Friedrich Ernst Brünnow
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Franz may refer to: People * Franz (given name) * Franz (surname) Places * Franz (crater), a lunar crater * Franz, Ontario, a railway junction and unorganized town in Canada * Franz Lake, in the state of Washington, United States – see Franz Lake National Wildlife Refuge Businesses * Franz Deuticke, a scientific publishing company based in Vienna, Austria * Franz Family Bakeries, a food processing company in Portland, Oregon * Franz-porcelains, a Taiwanese brand of pottery based in San Francisco Other uses * ''Franz'' (film), a 1971 Belgian film * Franz Lisp, a dialect of the Lisp programming language See also * Frantz (other) * Franzen (other) * Frantzen (other) Frantzen or Frantzén is a surname. It may refer to: * Allen Frantzen (born 1947/48), American medievalist * Björn Frantzén (born 1977), Swedish chef and owner of the Frantzén restaurant * Jean-Pierre Frantzen (1890–1957), Luxembourgian gym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin
Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constituent states, Berlin is surrounded by the State of Brandenburg and contiguous with Potsdam, Brandenburg's capital. Berlin's urban area, which has a population of around 4.5 million, is the second most populous urban area in Germany after the Ruhr. The Berlin-Brandenburg capital region has around 6.2 million inhabitants and is Germany's third-largest metropolitan region after the Rhine-Ruhr and Rhine-Main regions. Berlin straddles the banks of the Spree, which flows into the Havel (a tributary of the Elbe) in the western borough of Spandau. Among the city's main topographical features are the many lakes in the western and southeastern boroughs formed by the Spree, Havel and Dahme, the largest of which is Lake Müggelsee. Due to its l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8 Flora
Flora ( minor planet designation: 8 Flora) is a large, bright main-belt asteroid. It is the innermost ''large'' asteroid: no asteroid closer to the Sun has a diameter above 25 kilometres (20% that of Flora), and not until 20-km 149 Medusa was discovered was an asteroid known to orbit at a closer mean distance. It is the seventh-brightest asteroid with a mean opposition magnitude of +8.7. Flora can reach a magnitude of +8.1 at a favorable opposition near perihelion, such as occurred in November 2020 when it was from Earth. Discovery and naming Flora was discovered by J. R. Hind on 18 October 1847. It was his second asteroid discovery after 7 Iris. The name Flora was proposed by John Herschel, from Flora, the Latin goddess of flowers and gardens, wife of Zephyrus (the personification of the West wind), and mother of Spring. The Greek equivalent is Chloris, who has her own asteroid, 410 Chloris, but in Greek 8 Flora is also called 8 Chloris (8 Χλωρίς). The old iconi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ann Arbor, Michigan
Ann Arbor is a city in the U.S. state of Michigan and the county seat of Washtenaw County, Michigan, Washtenaw County. The 2020 United States census, 2020 census recorded its population to be 123,851. It is the principal city of the Ann Arbor List of metropolitan statistical areas, Metropolitan Statistical Area, which encompasses all of Washtenaw County. Ann Arbor is also included in the Metro Detroit, Greater Detroit Combined statistical area, Combined Statistical Area and the Great Lakes megalopolis, the most populated and largest Megaregions of the United States, megalopolis in North America. Ann Arbor is home to the University of Michigan. The university significantly shapes Ann Arbor's economy as it employs about 30,000 workers, including about 12,000 in the University of Michigan Health System, medical center. The city's economy is also centered on high technology, with several companies drawn to the area by the university's research and development infrastructure. Ann A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Philip Tappan
Henry Philip Tappan (April 18, 1805 – November 15, 1881) was an American philosopher, educator and academic administrator. He is officially considered the first president of the University of Michigan.The University of Michigan was established by the Michigan state constitution in 1837, and was governed directly by a Board of Regents until the office of President of the University was created by a constitutional convention in 1850. The modern University of Michigan now traces its founding date to 1817, when its precursor the University of Michigania was established, but the president of that institution, Rev. John Monteith, has never been officially considered to be a president of the University of Michigan. A pioneer in the transformation of American university curricula, he was instrumental in fashioning the University of Michigan as a prototype for American research universities, and has been called the "John the Baptist of the age of the American university." cited ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Gottfried Galle
Johann Gottfried Galle (9 June 1812 – 10 July 1910) was a German astronomer from Radis, Germany, at the Berlin Observatory who, on 23 September 1846, with the assistance of student Heinrich Louis d'Arrest, was the first person to view the planet Neptune and know what he was looking at. Urbain Le Verrier had predicted the existence and position of Neptune, and sent the coordinates to Galle, asking him to verify. Galle found Neptune in the same night he received Le Verrier's letter, within 1° of the predicted position. The discovery of Neptune is widely regarded as a dramatic validation of celestial mechanics, and is one of the most remarkable moments of 19th-century science. Early life Galle was born in the Papsthaus (a house in the Pabst wood) 2 km west of Radis in the vicinity of the town of Gräfenhainichen, as the first son of Marie Henriette ''née Pannier'' (1790–1839) and Johann Gottfried Galle (1790–1853), an operator of a tar oven. He attended the Gymna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Düsseldorf
Düsseldorf ( , , ; often in English sources; Low Franconian and Ripuarian: ''Düsseldörp'' ; archaic nl, Dusseldorp ) is the capital city of North Rhine-Westphalia, the most populous state of Germany. It is the second-largest city in the state and the seventh-largest city in Germany, with a population of 617,280. Düsseldorf is located at the confluence of two rivers: the Rhine and the Düssel, a small tributary. The ''-dorf'' suffix means "village" in German (English cognate: ''thorp''); its use is unusual for a settlement as large as Düsseldorf. Most of the city lies on the right bank of the Rhine. Düsseldorf lies in the centre of both the Rhine-Ruhr and the Rhineland Metropolitan Region. It neighbours the Cologne Bonn Region to the south and the Ruhr to the north. It is the largest city in the German Low Franconian dialect area (closely related to Dutch). Mercer's 2012 Quality of Living survey ranked Düsseldorf the sixth most livable city in the world. Düsse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bilk Observatory
Bilk is a quarter (''Stadtteil'') of Düsseldorf. Together with Oberbilk, Unterbilk, Hamm, Flehe and Volmerswerth it constitutes Borough 3, which is the most populous borough of Düsseldorf. Bilk has an area of , and 41,150 inhabitants (2020). Heinrich-Heine-University is in Bilk. History The first documentary mention of Bilk is in the year 799. The Old Church is older and seems to be from about 700 A.D., given by Saint Suitbert, but was destroyed by fire about 900, and is mentioned in 1019 for the first time. During the following centuries, the church was reconstructed frequently, especially in the 12th century and the 17th century. Until the year 1206 the fishing settlement ''dusseldorp'', located to the North of Bilk, belonged to the Bilk parish. After August 14 of 1288 (the Battle of Worringen) Düsseldorf got City Rights, the Old Bilk Church became a city church. In 1380 the County of Berg became the Duchy of Berg, Düsseldorf the capital of a duchy. In 1384 the vil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planet
A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk. Planets grow in this disk by the gradual accumulation of material driven by gravity, a process called accretion. The Solar System has at least eight planets: the terrestrial planets Mercury, Venus, Earth and Mars, and the giant planets Jupiter, Saturn, Uranus and Neptune. These planets each rotate around an axis tilted with respect to its orbital pole. All of them possess an atmosphere, although that of Mercury is tenuous, and some share such features as ice caps, seasons, volcanism, hurricanes, tectonics, and even hydrology. Apart from Venus and Mars, the Solar System planets generate magnetic fields, and all except Venus and Mercury have natural satellites. The giant planets bear plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comet
A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process that is called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind acting upon the nucleus of the comet. Comet nuclei range from a few hundred meters to tens of kilometers across and are composed of loose collections of ice, dust, and small rocky particles. The coma may be up to 15 times Earth's diameter, while the tail may stretch beyond one astronomical unit. If sufficiently bright, a comet may be seen from Earth without the aid of a telescope and may subtend an arc of 30° (60 Moons) across the sky. Comets have been observed and recorded since ancient times by many cultures and religions. Comets usually have highly eccentric elliptical orbits, and they have a wide range of orbital periods, ranging from several years to potentially several mill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Franz Encke
Johann Franz Encke (; 23 September 179126 August 1865) was a German astronomer. Among his activities, he worked on the calculation of the periods of comets and asteroids, measured the distance from the Earth to the Sun, and made observations of the planet Saturn. Biography Encke was born in Hamburg, where his father was the Pastor at St. James' Church, Hamburg. He was the youngest of eight children, and at the time his father died, when he was four years old, the family was in straitened circumstances. Thanks to the financial assistance of a teacher, he was able to be educated at the Gelehrtenschule des Johanneums. He studied mathematics and astronomy from 1811 at the University of Göttingen under Carl Friedrich Gauss, but he enlisted in the Hanseatic Legion The Hanseatic Legion was a military unit, first formed of a group of citizens from Hamburg. They had met in 1813 on the instigation of General Friedrich Karl von Tettenborn, in order to fight in the War of the Sixth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin Observatory
The Berlin Observatory (Berliner Sternwarte) is a German astronomical institution with a series of observatories and related organizations in and around the city of Berlin in Germany, starting from the 18th century. It has its origins in 1700 when Gottfried Leibniz initiated the "Brandenburg Society of Science″ (''Sozietät der Wissenschaften'') which would later (1744) become the Prussian Academy of Sciences (''Preußische Akademie der Wissenschaften''). The Society had no observatory but nevertheless an astronomer, Gottfried Kirch, who observed from a private observatory in Berlin. A first small observatory was furnished in 1711, financing itself by calendrical computations. In 1825 Johann Franz Encke was appointed director by King Frederick William III of Prussia. With the support of Alexander von Humboldt, Encke got the King to agree to the financing of a true observatory, but one condition was that the observatory be made accessible to the public two nights per week. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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