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Lost Asteroid
A minor planet is "lost" when today's observers cannot find it, because its location is too uncertain to target observations. This happens if the orbital elements of a minor planet are not known accurately enough, typically because the observation arc for the object is too short, or too few observations were made before the object became unobservable (e.g. too faint due to increasing distance, or too close to the Sun to view at night). By some definitions thousands, if not tens of thousands, of mostly small observed minor planets are lost. Some lost minor planets discovered in decades past cannot be found because the available observational data is insufficient for reliable orbit determination. With limited information astronomers cannot know where to look for the object at future dates. Lost objects are sometimes recovered when serendipitously re-observed by a later astronomical survey. If the orbital elements of the newly found object are sufficiently close to those of the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
452 Hamiltonia
Hamiltonia (minor planet designation: 452 Hamiltonia) is an asteroid. It was discovered by James Edward Keeler on 6 December 1899, but was then lost until 1981. Its provisional name was 1899 FD. The asteroid is named for Mount Hamilton (California), Mount Hamilton, the site of Lick Observatory where Keeler was working when he discovered the asteroid. It was the last asteroid discovery of the 1800s. Leif Kahl Kristensen, L. K. Kristensen at Aarhus University rediscovered 452 Hamiltonia along with 1537 Transylvania along with numerous other small objects in 1981.(1537) Transylvania and (452) Hamiltonia Kristensen, L. K.; Gibson, J.; Shao, C.-Y.; Bowell, E.; Marsden, B. G. IAU Circ., 3595, 1 (1981). Edited by Marsden, B. G/ref> These rediscoveries left only nine numbered minor planets unobserved since their discoveries: 330 Adalberta (which never existed in the first place), 473 Nolli, 719 Albert, 724 Hapag, 843 Nicolaia, 878 Mildred, 1009 Sirene, 1026 Ingrid, and 1179 Mally. Howeve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
473 Nolli
Nolli ( minor planet designation: 473 Nolli) is a rather small asteroid that may be in the Eunomia family. It was discovered by Max Wolf on February 13, 1901, but only observed for 1 month so it became a lost asteroid A minor planet is "lost" when today's observers cannot find it, because its location is too uncertain to target observations. This happens if the orbital elements of a minor planet are not known accurately enough, typically because the observat ... for many decades. It was recovered in 1987, 86 years after its discovery.http://cfa-www.harvard.edu/iauc/04200/04292.html#Item1 References External links * * Eunomia asteroids Nolli Nolli 19010213 {{beltasteroid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1922 Zulu
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album ''Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipknot. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1537 Transylvania
1537 Transylvania, provisional designation , is a carbonaceous asteroid and long-lost minor planet from the outer regions of the asteroid belt, approximately 17 kilometers in diameter. Discovered by Gyula Strommer in 1940, it was later named after region of Transylvania, where the discoverer was born. Discovery and rediscovery ''Transylvania'' was discovered on 27 August 1940, by Hungarian astronomer Gyula Strommer at the Konkoly Observatory near Budapest, Hungary. Observations of the asteroid continued at Konkoly until February 1942. It became a lost minor planet until Spring 1981, when astronomer Leif Kahl Kristensen at the University of Aarhus rediscovered it based on contemporary observations at Palomar Observatory. Kristensen was able to show that ''Transylvania'' was first observed as at Heidelberg Observatory in October 1903, and, after its observations at Konkoly in the early 1940s, it was again observed at Goethe Link Observatory in December 1962, and at Palomar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
69230 Hermes
69230 Hermes is a sub-kilometer sized asteroid and binary system on an eccentric orbit, classified as a potentially hazardous asteroid and near-Earth object of the Apollo group, that passed Earth at approximately twice the distance of the Moon on 30 October 1937. The asteroid was named after Hermes from Greek mythology. It is noted for having been the last remaining named lost asteroid, rediscovered in 2003. The S-type asteroid has a rotation period of 13.9 hours. Its synchronous companion was discovered in 2003. The primary and secondary are similar in size; they measure approximately and in diameter, respectively. Discovery ''Hermes'' was discovered by German astronomer Karl Reinmuth in images taken at Heidelberg Observatory on 28 October 1937. Only four days of observations could be made before it became too faint to be seen in the telescopes of the day. This was not enough to calculate an orbit, and ''Hermes'' became a lost asteroid. It thus did not receive a number, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2101 Adonis
2101 Adonis, ''provisional designation'': , is an asteroid on an extremely eccentric orbit, classified as potentially hazardous asteroid and near-Earth object of the Apollo group. ''Adonis'' measures approximately in diameter. Discovered by Eugène Delporte at Uccle in 1936, it became a lost asteroid until 1977. It may also be an extinct comet and a source of meteor showers. It was named after Adonis from Greek mythology. Discovery ''Adonis'' was discovered on 12 February 1936, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. After its initial discovery, which happened during a close approach with Earth, the asteroid was observed for two months, before it became a lost asteroid, as not enough observations could be made to calculate a sufficiently accurate orbit. It took 41 years until it was finally rediscovered by the American astronomer Charles Kowal in 1977, based on mathematical predictions made by Dr. Brian Marsden. Orbit and classi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1862 Apollo
1862 Apollo is a stony asteroid, approximately 1.5 kilometers in diameter, classified as a near-Earth object (NEO). It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 24 April 1932, but lost and not recovered until 1973. It is the namesake and the first recognized member of the Apollo asteroids, a subgroup of NEOs which are Earth-crossers, that is, they cross the orbit of the Earth when viewed perpendicularly to the ecliptic plane (crossing an orbit is a more general term than actually intersecting it). In addition, since Apollo's orbit is highly eccentric, it crosses the orbits of Venus and Mars and is therefore called a Venus-crosser and Mars-crosser as well. Although Apollo was the first Apollo asteroid to be discovered, its official IAU-number (1862) is higher than that of some other Apollo asteroids such as 1566 Icarus, due to the fact that it was a lost asteroid for more than 40 years and other bodies were numbered in the meantime. The ana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1179 Mally
1179 Mally, provisional designation , is an asteroid and long- lost minor planet from the central region of the asteroid belt, approximately 13 kilometers in diameter. Discovered by Max Wolf in 1931, the asteroid was lost until its rediscovery in 1986. The discoverer named it after his daughter-in-law, Mally Wolf. Discovery and rediscovery ''Mally'' was discovered on 19 March 1931, by German astronomer Max Wolf at Heidelberg Observatory in southwest Germany. Soon after its initial discovery, it became one of few well known lost minor planets for over 55 years. In 1986, ''Mally'' was rediscovered by astronomers Lutz Schmadel, Richard Martin West and Hans-Emil Schuster, who remeasured the original discovery plates and computed alternative search ephemerides. This allowed them to find the body very near to its predicted position. In addition, historic photographic plates from the Palomar Sky Survey (1956–1958), the UK Schmidt Telescope (Australia), and the ESO Schmidt Telesco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3789 Zhongguo
3789 Zhongguo, provisional designation ', is a resonant asteroid from outermost region of the asteroid belt, approximately in diameter. It was discovered in 1928 by Chinese astronomer Zhang Yuzhe at the Yerkes Observatory in Williams Bay, Wisconsin, in the United States. Originally named "China", the asteroid became lost and its name was transferred to another asteroid. After its re-discovery in 1986, it was named Zhongguo, which is the Chinese word for "China". The T/ X k-type asteroid is the namesake of the resonant Zhongguo group, located in the asteroid belt's Hecuba gap. It has a short rotation period of 3.8 hours. Discovery and re-discovery While studying in Chicago, Chinese astronomer Zhang Yuzhe observed an unknown asteroid, provisionally designated ' for the first time on 25 October 1928. After it was (prematurely) given the number 1125, he named it "China" or "中国" (''Zhōngguó'') in honor of his native country. As it was not observed beyond its initi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1026 Ingrid
1026 Ingrid, provisional designation , is a stony Florian asteroid and long- lost minor planet (1923–1986) from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered by Karl Reinmuth at Heidelberg in 1923, and later named after Ingrid, niece and godchild of astronomer Albrecht Kahrstedt. Discovery and recovery ''Ingrid'' was discovered on 13 August 1923, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was observed for only a few days during August 1923, before it became a lost minor planet for nearly 63 years until its recovery by Japanese astronomer Syuichi Nakano in 1986. Nakano was able to show that ''Ingrid'' had been observed and provisionally designated several times during its lost period: as at the discovering Heidelberg Observatory in October 1957, possibly as at Goethe Link Observatory in April 1963, as at the Crimean Astrophysical Observatory in N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1009 Sirene
Sirene ( minor planet designation: 1009 Sirene), provisional designation , is an eccentric asteroid and sizable Mars-crosser from the central regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory on 31 October 1923. The asteroid was named after the Siren from Greek mythology. Orbit and classification ''Sirene'' is a Mars-crossing asteroid with a notably large semi-major axis is 2.62 AU, due to its high eccentricity of 0.46. It orbits the Sun in the central main-belt at a distance of 1.4–3.8 AU once every 4 years and 3 months (1,552 days). Its orbit has an inclination of 16 ° with respect to the ecliptic. The body's observation arc begins 9 days after its official discovery observation at Bergedorf Observatory in Hamburg. On 8 June 1949, ''Sirene'' passed from Mars. Aethra group and mass of Mars ''Sirene'' had been of great interest in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
878 Mildred
878 Mildred is a minor planet in the main belt orbiting the Sun. It is the lowest numbered, and thus the namesake, of the Mildred family of asteroids, a subgroup of the Nysa family. The Mildred subgroup, and by extension 878 Mildred itself, is thought to have been formed by a recent fragmentation event from a larger asteroid. Discovery 878 Mildred was originally discovered in 1916 using the 1.5 m Hale Telescope at the Mount Wilson Observatory, but was subsequently lost until it was again observed on single nights in 1985 and 1991 (a lost asteroid A minor planet is "lost" when today's observers cannot find it, because its location is too uncertain to target observations. This happens if the orbital elements of a minor planet are not known accurately enough, typically because the observat ...). Initially only two observations of the asteroid were taken on 1916-09-06 which does not allow for an accurate orbital determination, however interest in the object prompted further in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
