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Neujmin
Grigory Nikolayevich Neujmin (russian: Григорий Николаевич Неуймин; – 17 December 1946) was a Georgian–Russian astronomer, native of Tbilisi in Georgia (country), Georgia, and a discoverer of numerous minor planets as well as 6 periodic comet, periodic and a hyperbolic comet at the Pulkovo Observatory, Pulkovo and Simeiz Observatory, Simeiz Observatories during the first half of the 20th century. Discoveries The Minor Planet Center credits his discoveries under the name "List of minor planet discoverers#G. N. Neujmin, G. N. Neujmin", and his surname appears this way in the literature. However, the modern English transliteration of his name would be Neuymin. Neujmin is credited with the discovery of 74 asteroids, and notably 951 Gaspra and 762 Pulcova. He also discovered and co-discovered 6 Jupiter-family comets, namely 25D/Neujmin, 28P/Neujmin, 42P/Neujmin, 57P/du Toit-Neujmin-Delporte (including List of numbered comets#57P/du Toit–Neujmin–Del ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1129 Neujmina
1129 Neujmina ( ''prov. designation'': ) is an Eos asteroid from the outer regions of the asteroid belt. It was discovered on 8 August 1929, by astronomer Praskoviya Parchomenko at the Simeiz Observatory on the Crimean peninsula. The stony S-type asteroid has a rotation period of 5.1 hours and measures approximately in diameter. It was named after Soviet astronomer Grigory Neujmin. Orbit and classification ''Neujmina'' is a member the Eos family (), the largest asteroid family of the outer main belt consisting of nearly 10,000 asteroids. It orbits the Sun at a distance of 2.8–3.3 AU once every 5 years and 3 months (1,919 days). Its orbit has an eccentricity of 0.08 and an inclination of 9 ° with respect to the ecliptic. The asteroid was first identified as at Simeiz in November 1911, followed by at Heidelberg in January 1926. The body's observation arc begins four weeks after its official discovery observation at Simeiz. Naming This minor planet was named af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Numbered Comets
This is a list of periodic comets that were numbered by the Minor Planet Center after having been observed on at least two occasions. Their orbital periods vary from 3.2 to 366 years. there are 436 numbered comets (1P–436P), most of them being members of the Jupiter-family (JFC). There are also 31 Encke-type comets (ETCs), 14 Halley-type comets (HTCs), five Chiron-type comets (CTCs), and one long-period comet ( 153P). About a third of these bodies are also near-Earth comets (NECs). In addition, eight numbered comets are principally classified as minor planets – five main-belt comets, two centaurs (CEN), and one Apollo asteroid – and display characteristics of both an asteroid and a comet. Occasionally, comets will break up into multiple chunks, as volatiles coming off the comet and rotational forces may cause it to break into two or more pieces. An extreme example of this is 73P/Schwassmann–Wachmann, which broke into over 50 pieces during its 1995 perihelion. For a lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neujmin (crater)
Neujmin is a lunar impact crater on the Moon's far side ''The Far Side'' is a single-panel comic created by Gary Larson and syndicated by Chronicle Features and then Universal Press Syndicate, which ran from December 31, 1979, to January 1, 1995 (when Larson retired as a cartoonist). Its surrealis .... It is nearly attached to the west-southwest of the smaller crater Waterman, and lies to the southwest of the prominent Tsiolkovskiy. This is an eroded crater formation that has been somewhat deformed by subsequent impacts. The circular crater Neujmin P lies across the southwestern rim. There are multiple small craterlets along the northwestern rim and inner wall, most likely secondary impacts from Tsiolkovskiy, and both the northern and southern rims are disrupted. There is a dark-halo crater on the floor of Neujmin, which typically indicates that darker material, such as mare lava, exists below present the surface. Satellite craters By convention these features are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
58P/Jackson–Neujmin
58P/Jackson–Neujmin is a periodic comet in the Solar System with a current orbital period of 8.19 years. The comet was discovered on a photographic plate on 20 September 1936 by Cyril Jackson of the Union Observatory, South Africa, who described it as faint and diffuse, with a brightness of magnitude 12. On the following day Grigory N. Neujmin of the Simeis Observatory, in Crimea, Russia discovered it independently. Fernand Rigaux of the Royal Observatory in Uccle, Belgium then also found it on an earlier photographic plate exposed on 9 September 1936. The predicted 1945 apparition was not observed due to uncertainty about its position and appearance date and even Elizabeth Roemer was unable to find it in 1953. 1961 was again very difficult but Charles Kowal managed to relocate it in September, 1970. The 1995 appearance was more favourable and brightness reached a magnitude of 10. The comet wasn't observed during its 2004 or 2012 apparitions, and was thought to be potent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
28P/Neujmin
28P/Neujmin, also known as Neujmin 1, is a large periodic comet in the Solar System. With a perihelion distance (closest approach to the Sun) of 1.5 AU, this comet does not make close approaches to the Earth. The comet nucleus is estimated to be 21.4 kilometers in diameter with a low albedo of 0.025. Since 28P has such a large nucleus, it will become brighter than the 20th magnitude in early 2019, roughly 2 years before coming to perihelion. When it comes to opposition Opposition may refer to: Arts and media * ''Opposition'' (Altars EP), 2011 EP by Christian metalcore band Altars * The Opposition (band), a London post-punk band * '' The Opposition with Jordan Klepper'', a late-night television series on Com ... in May 2020, when it is still 3.5 AU from the Sun, it will likely have an apparent magnitude around 16.9. But during the 2021 perihelion passage the comet will be on the opposite side of the Sun as the Earth. The comet is not known for bright outbursts of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
42P/Neujmin
42P/Neujmin, also known as Neujmin 3, is a periodic comet 2 km in diameter. This comet and 53P/Van Biesbroeck are fragments of a parent comet that split in March 1845. The comet did not come within 1 AU of a planet in the 20th century, but will pass 0.04 AU from asteroid on July 17, 2036. The comet nucleus
The nucleus i ...
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25D/Neujmin
25D/Neujmin, otherwise known as Comet Neujmin 2, is a periodic comet in the Solar System discovered by Grigory N. Neujmin (Simeis) on February 24, 1916. It was last observed on February 10, 1927. It was confirmed by George Van Biesbroeck (Yerkes Observatory, Wisconsin, United States) and Frank Watson Dyson (Greenwich Observatory, England) on March 1. A prediction by Andrew Crommelin ( Royal Observatory, Greenwich, England) for 1921 was considered unfavourable and no observations were made. The comet was recovered in 1926. Searches in 1932 and 1937 were unsuccessful. Consequently, this comet has remained a lost comet A lost comet is one which was not detected during its most recent perihelion passage. This generally happens when data is insufficient to reliably calculate the comet's location or if the solar elongation is unfavorable near perihelion passage. T ... since 1927. and using the JPL Horizons nominal orbit, the comet is still expected to come to perihelion around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
751 Faïna
751 Faïna ('' prov. designation:'' ''or'' ) is a very large background asteroid from the central regions of the asteroid belt, approximately in diameter. It was discovered on 28 April 1913, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The elongated C-type asteroid (Ch) has a rotation period of 23.7 hours. It was named after Faina Mikhajlovna Neujmina, colleague and first wife of the discoverer. Orbit and classification Located close to the region of the stony Eunomia family (), ''Faïna'' is a non-family asteroid of the main belt's background population when applying the modern synthetic hierarchical clustering method (HCM) by Nesvorný as well as Milani and Knežević (AstDys). However, in the 1995 HCM-analysis by Zappalà, ''Faïna'' is the parent body of the tiny Faïna family, which is not recognized by modern analysis. The HCM-method is based on an object's proper orbital elements to group asteroids into families. ''Fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
748 Simeïsa
748 Simeïsa ('' prov. designation:'' ''or'' ) is a very large Hilda asteroid from the outermost regions of the asteroid belt, approximately in diameter. It was discovered on 14 March 1913, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The dark P-type asteroid has a rotation period of 11.9 hours and a shape that is reminiscent of a tetrahedron. It was the first asteroid discovery made in Russia and named after the discovering observatory and its nearby Crimean town, Simeiz. Orbit and classification ''Simeïsa'' is a member of the distant orbital Hilda group of asteroids, which stay in a 3:2 orbital resonance with the gas giant Jupiter. It is however not a member of the collisional Hilda family () but a non-family asteroid of the background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the outermost asteroid belt at a distance of 3.2–4.7 AU once eve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praskov'ja Georgievna Parchomenko
This is a list of minor-planet discoverers credited by the Minor Planet Center with the discovery of one or several minor planets (such as near-Earth and main-belt asteroids, Jupiter trojans and distant objects). , the discovery of 612,011 numbered minor planets are credited to 1141 astronomers and 253 observatories, telescopes or surveys ''(see )''. On how a discovery is made, ''see observations of small Solar System bodies. For a description of the tables below, see ''. Discovering astronomers }, (bio-de) , align=left , M. Matsuyama , , - id="D. Matter" , align=left , Daniel Matter , 7 , 1957–pres. , , align=left , D. Matter; amateur, (bio-it) , align=left , D. Matter , , - id="A. Maury" , align=left , Alain Maury , 9 , 1958–pres. , , align=left , A. Maury; , align=left , A. Maury , , - id="D. Mayes" , align=left , Deronda Mayes , , 1957–pres. , , align=left , D. Mayes; inferred , align=left , D. Mayes , , - id="E. Mazzo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Minor Planet Discoverers
This is a list of minor-planet discoverers credited by the Minor Planet Center with the discovery of one or several minor planets (such as near-Earth and main-belt asteroids, Jupiter trojans and distant objects). , the discovery of 612,011 numbered minor planets are credited to 1141 astronomers and 253 observatories, telescopes or surveys ''(see )''. On how a discovery is made, ''see observations of small Solar System bodies. For a description of the tables below, see ''. Discovering astronomers }, (bio-de) , align=left , M. Matsuyama , , - id="D. Matter" , align=left , Daniel Matter , 7 , 1957–pres. , , align=left , D. Matter; amateur, (bio-it) , align=left , D. Matter , , - id="A. Maury" , align=left , Alain Maury , 9 , 1958–pres. , , align=left , A. Maury; , align=left , A. Maury , , - id="D. Mayes" , align=left , Deronda Mayes , , 1957–pres. , , align=left , D. Mayes; inferred , align=left , D. Mayes , , - id="E. Mazzoni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
951 Gaspra
951 Gaspra is an S-type asteroid that orbits very close to the inner edge of the asteroid belt. Gaspra was discovered by Russian astronomer G. N. Neujmin in 1916. Neujmin named it after Gaspra, a Black Sea retreat that was visited by his contemporaries, such as Gorky and Tolstoy. Gaspra was the first asteroid ever to be closely approached when it was visited by the ''Galileo'' spacecraft, which flew by on its way to Jupiter on 29 October 1991. Physical characteristics Apart from a multitude of small craters, Gaspra has half a dozen large flat areas and concavities. One of these flat areas, Dunne Regio, is a area that is flat to within . It is uncertain whether these are the result of impacts or whether they are instead facets formed when Gaspra broke off its parent asteroid. In the weak, lopsided gravity of Gaspra, impact craters would naturally take on such flat, lopsided shapes, making this determination difficult. The flat facets and concavities give Gaspra a very angular a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
