The official naming citation was published by the Minor Planet Center on 1 August 1978 (M.P.C. , 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. , 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. , 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. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox.
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.
In asteroid: Near-Earth asteroids …of Earth-crossing asteroids is named Atens for (2062) Aten, which was discovered in 1976. - 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. 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 o… As of July 2020[update], a total of thirteen Aten asteroids have received a name. The February 15, 2013 Earth encounter shortened 367943 Duende orbital period to about 317 days, changing its orbital class from Apollo to Aten. Announcing our NEW encyclopedia for Kids! As of 2017, the group consists of more than 1,200 numbered members. Its orbit has an eccentricity of 0.18 and an inclination of 19° with respect to the ecliptic. There are 1,748 Aten-class Asteroids in this database out of 962,651 total, accounting for 0.2% of objects. 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. II. https://www.britannica.com/science/Aten-asteroid.  However, the Minor Planet Center (MPC) classifies Aten as a larger "1+ KM" object. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. , "JPL Small-Body Database Browser: 2062 Aten (1976 AA)", "ExploreNEOs. They are listed in chronological order of discovery.  No additional lightcurves have been obtained since. Aten orbits the Sun at a distance of 0.8–1.1 AU once every 11 months (347 days). …of Earth-crossing asteroids is named Atens for (2062) Aten, which was discovered in 1976. V. Average Albedo by Taxonomic Complex in the Near-Earth Asteroid Population", Benner, et al. Lightcurve analysis gave a longer-than average rotation period of 40.77 hours with a brightness variation of 0.26 magnitude (U=2).
Aten-class Asteroids (ATE) are objects whose orbit could bring it in close proximity to Earth. @OctavioSuite @luilemat = @AtenAsteroid / AA Extended Play 2014 As of 2017, the group consists of more than 1,200 numbered members. 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. The list is divided into named members, brightest, notable and other record holding Aten asteroids. , In the Tholen classification, Aten is a common S-type asteroid. In the SMASS taxonomy it is classified as an Sr-type, a subtype which transitions to the R-type asteroids. Some of these are economically attractive in the near term. As of January 2017[update], 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.
, 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. , The following lists Aten asteroids thought to be larger than 2 kilometers across. For a list of existing articles, see Aten asteroids (category). , 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. Apolloasteroids -- whose orbits cross Earth's orbit. It was discovered on 7 January 1976, at the Palomar Observatory by American astronomer Eleanor Helin, who was the principal scientist for the NEAT project until her retirement in 2002. , 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.
The list is divided into named members, brightest, notable and other record holding Aten asteroids. Aten Asteroid. This is a list of Aten asteroids, a group of near-Earth objects. 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.
The Accuracy of the Warm Spitzer Near-Earth Object Survey", "ExploreNEOs. Many have orbits which reside entirely between Earth and Mars. 4420).  The Warm Spitzer NEO survey ("ExploreNEOs") gives a diameter of 1.3 kilometers with an albedo of 0.20.  A new category of asteroids was thus created, the Atens. 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. 145 likes. A new category of asteroids was thus created, the Atens. 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 … 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…. 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. The 3 main subcategories of Near Earth Asteroids are: 1.
For a list of existing articles, see Aten asteroids (category). Amorasteroids -- whose orbits approach but do not cross Earth orbit, and whose orbits are further from the Sun than Earth's orbit. This is a list of Aten asteroids, a group of near-Earth objects.  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. Apollo asteroids spend most of their time outside Earth orbit. 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 asteroid has an Earth minimum orbit intersection distance of 0.1131 AU (16,900,000 km) which corresponds to 44.1 lunar distances. The asteroid was named after Aten from Egyptian mythology.
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