astro.wikisort.org - Asteroid
3554 Amun is an M-type Aten asteroid (meaning it crosses Earth's orbit) and a Venus-crosser. It was discovered on 4 March 1986 by Carolyn and Eugene Shoemaker at Mount Palomar Observatory. Its estimated diameter is 3.341 kilometers, making it one of the smallest known M-type asteroids. Amun was the fifth Aten asteroid to be numbered.
 Orbit diagram of asteroid Amun with location as of September 9, 2012 | |
| Discovery | |
|---|---|
| Discovered by | C. Shoemaker E. M. Shoemaker |
| Discovery date | 4 March 1986 |
| Designations | |
MPC designation | (3554) Amun |
Named after | Amun |
Alternative designations | 1986 EB |
Minor planet category | Aten [1] Venus-crosser asteroid |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 10923 days (29.91 yr) |
| Aphelion | 1.24677 AU (186.514 Gm) |
| Perihelion | 0.700578 AU (104.8050 Gm) |
Semi-major axis | 0.973675 AU (145.6597 Gm) |
| Eccentricity | 0.28048 |
Orbital period (sidereal) | 0.96 yr (350.9 d) |
Mean anomaly | 184.781° |
Mean motion | 1.02585°/day |
| Inclination | 23.3626° |
Longitude of ascending node | 358.627° |
Argument of perihelion | 359.392° |
| Earth MOID | 0.250204 AU (37.4300 Gm) |
| Physical characteristics | |
Mean diameter | 3.341 km[1] |
| Mass | ~1.6×1013 kg |
Synodic rotation period | 2.53001 h (0.105417 d)[1] |
Geometric albedo | 0.1284 ± 0.024[1] |
Spectral type | M-type asteroid |
Absolute magnitude (H) | 15.82[1] |
Amun was once considered metallic, based on its M-type spectrum. In Mining the Sky, planetary scientist John S. Lewis calculated the value of 3554 Amun at $20 trillion.[2]
(6178) 1986 DA is another M-type near-Earth asteroid with lower inclination that is actually metallic.
Amun passes closest to Venus, and in 1964, 2034, and 2103 comes within 10 Gm of it.[1]
References
- "JPL Small-Body Database Browser: 3554 Amun (1986 EB)" (2014-02-19 last obs (arc=27.9 yr)). Jet Propulsion Laboratory. Retrieved 11 April 2016.
- "NSS Review: Mining the Sky". www.nss.org. Archived from the original on 14 May 2012. Retrieved 26 February 2018.
External links
- Economic value of asteroid 3554 Amun
- 3554 Amun at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
- 3554 Amun at ESA–space situational awareness
- 3554 Amun at the JPL Small-Body Database
 | This near-Earth asteroid-related article is a stub. You can help Wikipedia by expanding it. |
На других языках
[de] (3554) Amun
(3554) Amun ist ein M-Asteroid vom Aten-Typ. Damit bezeichnet man eine Gruppe von Asteroiden, deren Bahnen teilweise innerhalb der Erdbahn verlaufen und diese von innen her kreuzen. Amun nähert sich der Sonne bis auf ca. 0,7 AE und kreuzt damit sogar auch die Venusbahn.- [en] 3554 Amun
[es] (3554) Amun
(3554) Amun es un asteroide perteneciente a los asteroides Atón descubierto por Eugene Merle Shoemaker y Carolyn Jean S. Shoemaker el 4 de marzo de 1986 desde el observatorio del Monte Palomar, Estados Unidos.[ru] (3554) Амон
(3554) Амон (лат. Amun) — небольшой околоземный астероид из группы Атона, который принадлежит к спектральному классу M. Он был открыт 4 марта 1986 года американскими астрономами Кэролин и Юджином Шумейкерами в Паломарской обсерватории и назван в честь египетского бога света Амона, чей культ был широко распространён в Фивах[1].Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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