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Provisional Designation In Astronomy
Provisional designation in astronomy is the naming convention applied to astronomical objects immediately following their discovery. The provisional designation is usually superseded by a permanent designation once a reliable orbit has been calculated. Approximately 47% of the more than 1,100,000 known minor planets remain provisionally designated, as hundreds of thousands have been discovered in the last two decades. __TOC__ Minor planets The current system of provisional designation of minor planets (asteroids, centaurs and trans-Neptunian objects) has been in place since 1925. It superseded several previous conventions, each of which was in turn rendered obsolete by the increasing numbers of minor planet discoveries. A modern or new-style provisional designation consists of the year of discovery, followed by two letters and, possibly, a suffixed number. New-style provisional designation For example, the provisional designation stands for the 3910th body identified du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planets
According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor planet'', but that year's meeting reclassified minor planets and comets into dwarf planets and small Solar System bodies (SSSBs).Press release, IAU 2006 General Assembly: Result of the IAU Resolution votes International Astronomical Union, August 24, 2006. Accessed May 5, 2008. Minor planets include s ( |
20936 Nemrut Dagi
20936 Nemrut Dagi, ''provisional designation'': , is a stony Hungaria asteroid and Mars-grazer from the innermost regions of the asteroid belt, approximately in diameter. It was discovered on 13 May 1971, by Dutch astronomer couple Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at Palomar Observatory in California, United States. The asteroid has a rotation period of 3.28 hours, a likely spheroidal shape, and a high albedo typically seen among the enstatite-rich E-type asteroids. In 2012, it was named after the a dormant volcano Nemrut (Nemrut Dağı) in Turkey. Orbit and classification ''Nemrut Dagi'' belongs to the dynamical group of Hungaria asteroids, which form the innermost dense concentration of asteroids in the Solar System. It orbits the Sun in the inner main-belt at a distance of 1.7–2.0 AU once every 2 years and 6 months (922 days; semi-major axis of 1.85 AU). Its orbit has an eccent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
26 Proserpina
Proserpina (minor planet designation: 26 Proserpina) is a main-belt asteroid discovered by German astronomer R. Luther on May 5, 1853. It is named after the Roman goddess Proserpina, the daughter of Ceres and the Queen of the Underworld. Another main-belt asteroid, 399 Persephone, discovered in 1895, is named after her Greek counterpart. This object is orbiting the Sun with a period of 4.33 years. It has a cross-section size of around 90 km and a stony ( S-type) composition. Photometric observations of this asteroid have produced discrepant estimates of the rotation period. A period of 12.13 hours was reported in 1979, followed by 10.6 hours in 1981 and 6.67 hours in 2001. Observations made in 2007 at the Oakley Observatory in Terre Haute, Indiana produced a light curve with a period of 13.06 ± 0.03 hours and a brightness variation of 0.21 ± 0.01 in magnitude Magnitude may refer to: Mathematics * Euclidean vector, a quantity defined by both its magnitude and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
17 Thetis
Thetis, minor planet designation 17 Thetis, is a stony asteroid from the inner regions of the asteroid belt, approximately 90 kilometers in diameter. It was discovered on 17 April 1852, by German astronomer Robert Luther at Bilk Observatory in Düsseldorf, Germany who deferred to Friedrich Wilhelm August Argelander the naming his first asteroid discovery after Thetis from Greek mythology. Description The asteroid orbits the Sun at a distance of 2.1–2.8 AU once every 3 years and 11 months (1,419 days). Its orbit has an eccentricity of 0.13 and an inclination of 6 ° with respect to the ecliptic. The spectrum of this object indicates that it is an S-type asteroid with both low and high calcium forms of pyroxene on the surface, along with less than 20% olivine. The high-calcium form of pyroxene forms 40% or more of the total pyroxene present, indicating a history of igneous rock deposits. This suggests that the asteroid underwent differentiation by melting, creating a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
16 Psyche
16 Psyche () is a large M-type asteroid discovered by the Italian astronomer Annibale de Gasparis on 17 March 1852 and named after the Greek goddess Psyche. The prefix "16" signifies that it was the sixteenth minor planet in order of discovery. It is the largest and most massive of the M-type asteroids, and one of the dozen most massive asteroids. It has a mean diameter of approximately and contains about one percent of the mass of the asteroid belt. Historically, it was hypothesized to be the exposed core of a protoplanet, but numerous recent studies have all but ruled that out. Psyche will be explored by the spacecraft of the same name, with launch planned in 2023 and arrival in 2029. Symbol Astronomers created icon-like symbols for the first fifteen asteroids to be discovered, as a type of shorthand notation consistent with older notation for the classical planets. Psyche was given an iconic symbol, as were a few other asteroids discovered after 16 Psyche. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fides Symbol (fixed Width)
Fides or FIDES may refer to: *Faith, trust, loyalty, or fidelity, or a religious belief * Fides (cycling team), an Italian professional cycling team in 1961 *Fides (deity), goddess of trust in Roman mythology * Fides (reliability), guide allowing estimated reliability calculation in electronics * Fides (name), given name *37 Fides, asteroid in the main belt of Earth's Solar System *'' Uberrima fides'', legal doctrine governing insurance contracts *Agenzia Fides, news agency of the Vatican * FIDES Bank Namibia, a commercial bank * Fonds d'Investissements pour le Developpement Economique et Social, former government agency of colonial-era France * Sky Fides, a Czech paraglider design See also * Bona fide (other) * Fidei (other) * Fide (other) * FIDE (''Fédération Internationale Des Échecs''), or the International Chess Federation Fide or FIDE may also refer to: * FIDE (''Fédération Internationale pour le Droit Européen''), or the International Fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
37 Fides
Fides ( minor planet designation: 37 Fides) is a large main-belt asteroid. It was discovered by German astronomer Karl Theodor Robert Luther on October 5, 1855, and named after Fides, the Roman goddess of loyalty. Fides was the last of the main-belt asteroids to be assigned an iconic symbol. 37 Fides is also a S-type asteroid in the Tholen classification system. Photometric observations of this asteroid at multiple observatories during 1981–82 gave an unusual light curve with three minima and maxima. The curve changed with varying phase angle of the asteroid relative to the viewer and the position of the Sun, indicating the changing influence of shadows cast by surface features. The composite light curve has a best fit period estimate of 7.33 hours. Austrian astronomer Hans Josef Schober has suggested that the multiple minima and maxima during each period may be an indication of a binary nature. References External links * * {{DEFAULTSORT:000037 Background astero ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
35 Leukothea
Leukothea (minor planet designation: 35 Leukothea) is a large, dark asteroid from the asteroid belt. It was discovered by German astronomer Karl Theodor Robert Luther on April 19, 1855, and named after Leukothea, a sea goddess in Greek mythology. 35 Leukothea is a C-type asteroid in the Tholen classification system, suggesting a carbonaceous composition. It is orbiting the Sun with a period of and has a cross-sectional size of 103.1 km. Photometric observations of this asteroid from the Organ Mesa Observatory in Las Cruces, New Mexico during 2010 gave a light curve with a rotation period of hours and a brightness variability of in magnitude. This is consistent with previous studies in 1990 and 2008. The computed Lyapunov time for this asteroid is 20,000 years, indicating that it occupies a chaotic orbit that will change randomly over time because of gravitational perturbation In astronomy, perturbation is the complex motion of a massive body subjected to forces ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
28 Bellona
Bellona (minor planet designation: 28 Bellona) is a large main-belt asteroid. It was discovered by German astronomer R. Luther on March 1, 1854, and named after Bellōna, the Roman goddess of war; the name was chosen to mark the beginning of the Crimean War. It is a stony ( S-type) asteroid with a cross-section size of around 100–120 km. 28 Bellona is orbiting the Sun with a period of 4.63 years. Bellona has been studied by radar. Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado in 2007 gave a light curve with a period of 15.707 ± 0.002 hours and a brightness variation of 0.27 ± 0.03 in magnitude Magnitude may refer to: Mathematics *Euclidean vector, a quantity defined by both its magnitude and its direction *Magnitude (mathematics), the relative size of an object *Norm (mathematics), a term for the size or length of a vector *Order of .... This report is in close agreement with a period estimate of 15. ... [...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 for the campaign of 1813–1814, serving as a sergeant in the artillery of the Prussian army, in Holstein and Mecklenburg. In 1814 he resumed his studies at the University, but after Napoleon's escape from Elba he retur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vesta Symbol (original, Fixed Width)
Vesta may refer to: Fiction and mythology * Vesta (mythology), Roman goddess of the hearth and home * Vesta (Marvel Comics), a Marvel Comics character * Sailor Vesta, a character in ''Sailor Moon'' Brands and products * Lada Vesta, a car from Russian car manufacturer AVTOVAZ * Swan Vesta (began 1883), a brand of matches ** Vesta case, metal containers for matches (which were previously called vestas) * Vesta, a freeze-dried meal brand launched in the United Kingdom by Batchelors in the early 1970s, and now owned by Premier Foods. Music * Vesta (1957–2011), stage name of American recording artist Vesta Williams ** ''Vesta'' (album), 1986 album by Vesta Williams ** ''Vesta 4 U'', 1988 album by Vesta Williams * Vesta, a 2008 rock band made up of former members of The Juliana Theory Places * Monte Vesta, Lombardy, Italy * Temple of Vesta, Rome, Italy * Vesta Nunataks, Alexander Island, Antarctica * 4 Vesta, an asteroid Canada * Vesta Creek (Alberta), a stream in northern Alb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4 Vesta
Vesta ( minor-planet designation: 4 Vesta) is one of the largest objects in the asteroid belt, with a mean diameter of . It was discovered by the German astronomer Heinrich Wilhelm Matthias Olbers on 29 March 1807 and is named after Vesta, the virgin goddess of home and hearth from Roman mythology. Vesta is thought to be the second-largest asteroid, both by mass and by volume, after the dwarf planet Ceres, though in volume it overlaps with the uncertainty in the measurements of 2 Pallas.Marsset, M., Brož, M., Vernazza, P. et al. The violent collisional history of aqueously evolved (2) Pallas. Nat Astron 4, 569–576 (2020). https://doi.org/10.1038/s41550-019-1007-5 Measurements give it a nominal volume only slightly larger than that of Pallas (about 5% greater, which is the magnitude of the uncertainties in measurement), but it is 25% to 30% more massive. It constitutes an estimated 9% of the mass of the asteroid belt. Vesta is the only known remaining rocky protoplanet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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