Aten orbits the Sun at a distance of 0.8–1.1 AU once every 11 months (347 days). [2], This minor planet was named from Egyptian mythology after Aten, the ancient Egyptian god of the solar disk, originally an aspect of the god Ra. This is a list of Aten asteroids, a group of near-Earth objects. [13], The asteroid has an Earth minimum orbit intersection distance of 0.1131 AU (16,900,000 km) which corresponds to 44.1 lunar distances. As of 2017, the group consists of more than 1,200 numbered members. Ate (minor planet designation: 111 Ate) is a main-belt asteroid that was discovered by the German-American astronomer C. H. F. Peters on August 14, 1870, and named after Ate, the goddess of mischief and destruction in Greek mythology. As of 2017, the group consists of more than 1,200 numbered members. For a list of existing articles, see Aten asteroids (category). [1], In the 1990s, Italian astronomer Stefano Mottola obtained a rotational lightcurve of Aten during the EUNEASO survey at La Silla, which was a European near-Earth object search and follow-up observation program to determine additional physical parameters. @OctavioSuite @luilemat = @AtenAsteroid / AA Extended Play 2014 As of July 2020[update], a total of thirteen Aten asteroids have received a name. The Accuracy of the Warm Spitzer Near-Earth Object Survey", "ExploreNEOs. - Radar Detection of Near-Earth Asteroids 2062 Aten, 2101 Adonis, 3103 Eger, 4544 Xanthus, and 1992 QN (1997), Asteroids and comets rotation curves, CdR, https://en.wikipedia.org/w/index.php?title=2062_Aten&oldid=977823440, Minor planets named from Egyptian mythology, Creative Commons Attribution-ShareAlike License, This page was last edited on 11 September 2020, at 06:06. V. Average Albedo by Taxonomic Complex in the Near-Earth Asteroid Population", Benner, et al. …of Earth-crossing asteroids is named Atens for (2062) Aten, which was discovered in 1976. [9] No additional lightcurves have been obtained since. In asteroid: Near-Earth asteroids …of Earth-crossing asteroids is named Atens for (2062) Aten, which was discovered in 1976. [1][7] The Warm Spitzer NEO survey ("ExploreNEOs") gives a diameter of 1.3 kilometers with an albedo of 0.20. This is a list of Aten asteroids, a group of near-Earth objects. [3], The following lists Aten asteroids thought to be larger than 2 kilometers across. [6][12] However, the Minor Planet Center (MPC) classifies Aten as a larger "1+ KM" object. https://www.britannica.com/science/Aten-asteroid. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. 145 likes. Many o… 2. They are listed in chronological order of discovery. Aten was the first asteroid found to have a semi-major orbital axis of less than one astronomical unit and a period of less than one year. [2], Aten was the first asteroid found to have a semi-major orbital axis of less than one astronomical unit and a period of less than one year. The list is divided into named members, brightest, notable and other record holding Aten asteroids. For for other records, see, "Near-Earth Asteroid Discovery Statistics", "List Of Aten Minor Planets (by designation)", https://en.wikipedia.org/w/index.php?title=List_of_Aten_asteroids&oldid=977642166, Short description is different from Wikidata, Articles containing potentially dated statements from January 2017, All articles containing potentially dated statements, Articles containing potentially dated statements from July 2020, Creative Commons Attribution-ShareAlike License, This page was last edited on 10 September 2020, at 02:36. Apollo asteroids spend most of their time outside Earth orbit. As of January 2017 , there are 1125 known Atens, most of which remain provisionally designated without a number, as they have not been observed at two or more oppositions. Aten Asteroid. 4420). The list is divided into named members, brightest, notable and other record holding Aten asteroids. A new category of asteroids was thus created, the Atens. Other groups of near-Earth objects (NEOs) are the Apollo and Amor asteroids, which are both significantly larger than the Atens, while the Atira asteroids form the smallest NEO-group by far. II. [3] A new category of asteroids was thus created, the Atens. The asteroid was named after Aten from Egyptian mythology. Announcing our NEW encyclopedia for Kids! Some of these are economically attractive in the near term. Aten-class Asteroids (ATE) are objects whose orbit could bring it in close proximity to Earth. [1] A first precovery was taken at the discovering observatory in December 1955, extending the body's observation arc by more than 20 years prior to its official discovery observation. Assuming an albedo of 0.15, this converts to an absolute magnitude of about 16.2, The following is a list of current records for Aten asteroids, "List of Aten asteroid records" redirects here. Lightcurve analysis gave a longer-than average rotation period of 40.77 hours with a brightness variation of 0.26 magnitude (U=2). Amorasteroids -- whose orbits approach but do not cross Earth orbit, and whose orbits are further from the Sun than Earth's orbit. In the SMASS taxonomy it is classified as an Sr-type, a subtype which transitions to the R-type asteroids. The S-type asteroid measures approximately 900 meters in diameter, has a longer-than average rotation period of 44.77 hours, and approaches the orbit Earth to 44.1 lunar distances. [12], According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Aten measures between 700 and 830 meters in diameter and its surface has a high albedo between 0.39 and 0.52. As of January 2017[update], there are 1125 known Atens,[1] most of which remain provisionally designated without a number,[2] as they have not been observed at two or more oppositions. There are 1,748 Aten-class Asteroids in this database out of 962,651 total, accounting for 0.2% of objects. The 3 main subcategories of Near Earth Asteroids are: 1. [14], "JPL Small-Body Database Browser: 2062 Aten (1976 AA)", "ExploreNEOs. The Aten asteroids have mean distances from the Sun that are less than 1 AU and aphelion distances that are greater than or equal to 0.983 AU, the perihelion distance of Earth; they cross Earth’s orbit…. Apolloasteroids -- whose orbits cross Earth's orbit. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. [4][5], in 1994, Tom Gehrels published a diameter of 1.1 kilometers and an albedo of 0.26 in his book Hazards Due to Comets and Asteroids. 2062 Aten /ˈɑːtən/,[a] provisional designation 1976 AA, is a stony sub-kilometer asteroid and namesake of the Aten asteroids, a subgroup of near-Earth objects. Many have orbits which reside entirely between Earth and Mars. Its orbit has an eccentricity of 0.18 and an inclination of 19° with respect to the ecliptic. It was discovered on 7 January 1976, at the Palomar Observatory by American astronomer Eleanor Helin,[2] who was the principal scientist for the NEAT project until her retirement in 2002. [1], In the Tholen classification, Aten is a common S-type asteroid. [8], The Collaborative Asteroid Lightcurve Link agrees with a revised thermal model for asteroid diameters and albedos, and adopts an albedo of 0.28 with a diameter of 0.91 kilometers based on an absolute magnitude of 17.2. The February 15, 2013 Earth encounter shortened 367943 Duende orbital period to about 317 days, changing its orbital class from Apollo to Aten. The Aten asteroid s have mean distances from the Sun that are less than 1 AU and aphelion distances that are greater than or equal to 0.983 … For a list of existing articles, see Aten asteroids (category). [3] The official naming citation was published by the Minor Planet Center on 1 August 1978 (M.P.C.

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