astro.wikisort.org - Asteroid
Atalante (minor planet designation: 36 Atalante) is a large, dark main-belt asteroid. It was discovered by the German-French astronomer H. Goldschmidt on October 5, 1855, and named by French mathematician Urbain Le Verrier after the Greek mythological heroine Atalanta (of which Atalante is the French and German form, pronounced nearly the same as 'Atalanta' in English).[6] It was rendered 'Atalanta' in English sources in the 19th century.[3] The asteroid is also classified as a C-type one, according to the Tholen classification system.[1]
 Three-dimensional model of 36 Atalante created based on light-curve | |
| Discovery[1] | |
|---|---|
| Discovered by | H. Goldschmidt |
| Discovery date | October 5, 1855 |
| Designations | |
Designation | (36) Atalante |
| Pronunciation | /ætəˈlæntə, -tiː/[2] |
Named after | Atalanta |
Alternative names | A901 SB; A912 HC Atalanta[3] |
Minor planet category | Main belt |
| Adjectives | Atalantean /ˌætəlænˈtiːən/[4] |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 535.625 Gm (3.580 AU) |
| Perihelion | 286.217 Gm (1.913 AU) |
Semi-major axis | 410.921 Gm (2.747 AU) |
| Eccentricity | 0.303 |
Orbital period (sidereal) | 1662.831 d (4.55 a) |
Average orbital speed | 17.55 km/s |
Mean anomaly | 47.005° |
| Inclination | 18.432° |
Longitude of ascending node | 358.472° |
Argument of perihelion | 47.132° |
| Physical characteristics | |
| Dimensions | 105.6 km[1] 110.14 ± 4.38 km[5] |
| Mass | (4.32 ± 3.80) × 1018 kg[5] |
Mean density | 6.17 ± 5.48 g/cm3[5] |
Surface gravity | ~0.0295 m/s² |
Escape velocity | ~0.0558 km/s |
Synodic rotation period | 0.414 d (9.93 h)[1] |
| Albedo | 0.065[1] |
| Temperature | ~170 K |
Spectral type | C[1] |
Absolute magnitude (H) | 8.46[1] |
Observation of the asteroid light curve indicates it is rotating with a period of 9.93 ± 0.01 hours. During this interval, the magnitude varies by an amplitude of 0.12 ± 0.02.[7] By combining the results of multiple light curves, the approximate ellipsoidal shape of the object can be estimated. It appears to be slightly elongated, being about 28.2% longer along one axis compared to the other two.[8] Atalante was observed by Arecibo radar in October 2010.[9][10]
This asteroid shares a mean-motion resonance with the planets Jupiter and Saturn. The computed Lyapunov time for this asteroid is only 4,000 years, indicating that it occupies a highly chaotic orbit that will change randomly over time because of gravitational perturbations of the planets. This is the shortest Lyapunov time of the first 100 named asteroids.[11]
References
- "JPL Small-Body Database Browser: 36 Atalante" (2011-12-30 last obs). Jet Propulsion Laboratory. Retrieved 23 January 2012.
- 'Atalanta, Atalante' in The Century Dictionary and Cyclopedia. The pronunciation given for 'Atalante' is for the Greek Ἀταλάντη; however, the name of the asteroid is the German form of the Latin Atalanta, with the German final -e being a schwa much like an English final -a – and indeed, 'Atalanta' is given as the English form in Craig (1869), below.
- John Craig (1869) The Universal English Dictionary
- E.g. John Milton (1749) Paradise Lost
- Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- Schmadel, Lutz D.; International Astronomical Union (2003), Dictionary of minor planet names, Physics and astronomy online library, vol. 1 (5th ed.), Springer, p. 18, ISBN 3-540-00238-3
- Brinsfield, James W. (September 2007), "The Rotation Periods of 36 Atalante and 416 Vaticana", The Minor Planet Bulletin, 34 (3): 58–59, Bibcode:2007MPBu...34...58B
- Blanco, C.; Riccioli, D. (September 1998), "Pole coordinates and shape of 30 asteroids", Astronomy and Astrophysics Supplement, 131: 385–394, Bibcode:1998A&AS..131..385B, doi:10.1051/aas:1998277
- Mike Nolan (18 January 2012). "Scheduled Arecibo Radar Asteroid Observations". Planetary Radar at Arecibo Observatory. Retrieved 23 January 2012.
- "Radar-Detected Asteroids and Comets". NASA/JPL Asteroid Radar Research. Retrieved 23 January 2012.
- Šidlichovský, M. (1999), Svoren, J.; Pittich, E. M.; Rickman, H. (eds.), "Resonances and chaos in the asteroid belt", Evolution and source regions of asteroids and comets : proceedings of the 173rd colloquium of the International Astronomical Union, held in Tatranska Lomnica, Slovak Republic, August 24–28, 1998, pp. 297–308, Bibcode:1999esra.conf..297S.
External links
- Lightcurve plot of 36 Atalante, Palmer Divide Observatory, B. D. Warner (2007)
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 36 Atalante at AstDyS-2, Asteroids—Dynamic Site
- 36 Atalante at the JPL Small-Body Database
На других языках
[de] (36) Atalante
(36) Atalante ist ein Asteroid des Asteroiden-Hauptgürtels, der am 5. Oktober 1855 von Hermann Mayer Salomon Goldschmidt entdeckt wurde.- [en] 36 Atalante
[es] (36) Atalante
(36) Atalante es un asteroide que forma parte del cinturón de asteroides y fue descubierto el 5 de octubre de 1855 por Hermann Mayer Salomon Goldschmidt desde París, Francia. Está nombrado por Atalante, un personaje de la mitología griega.[2][ru] (36) Аталанта
(36) Атала́нта (лат. Atalante) — астероид главного пояса, который принадлежит к тёмному спектральному классу C. Он был открыт 5 октября 1855 года немецким астрономом Германом Гольдшмидтом в Париже, Франция и назван в честь Аталанты аркадской, дочери Иаса и Климены, героини древнегреческой мифологии. Название было предложено французским математиком Урбеном Леверье[2].Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
WikiSort.org - проект по пересортировке и дополнению контента Википедии