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36 Atalante
Main-belt asteroid
Main-belt asteroid
| Field | Value |
|---|---|
| image | 36Atalante (Lightcurve Inversion).png |
| caption | Three-dimensional model of 36 Atalante created based on light-curve |
| background | #D6D6D6 |
| name | 36 Atalante |
| discovery_ref | |
| discoverer | H. Goldschmidt |
| discovered | October 5, 1855 |
| mpc_name | (36) Atalante |
| pronounced | for Atalanta, for Atalante |
| adjective | Atalantean |
| alt_names | A901 SB; A912 HC |
| Atalanta | |
| named_after | Atalanta |
| mp_category | Main belt |
| epoch | December 31, 2006 (JD 2454100.5) |
| semimajor | 410.921 million km (2.747 AU) |
| perihelion | 286.217 million km (1.913 AU) |
| aphelion | 535.625 million km (3.580 AU) |
| eccentricity | 0.303 |
| period | 1662.831 d (4.55 a) |
| inclination | 18.432° |
| asc_node | 358.472° |
| arg_peri | 47.132° |
| mean_anomaly | 47.005° |
| avg_speed | 17.55 km/s |
| mean_diameter | 132.842 ± 29.191 km{{cite web |
| type | 2011-12-30 last obs |
| title | JPL Small-Body Database Browser: 36 Atalante |
| url | https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=36 |
| publisher | Jet Propulsion Laboratory |
| access-date | 2012-01-23}} |
| 110.14 ± 4.38 km | |
| mass | (9.57 ± 4.32/3.15) kg |
| density | 1.672 ± 0.755/0.551 g/cm3 |
| surface_grav | ~ m/s² |
| escape_velocity | ~ km/s |
| rotation | 0.414 d (9.93 h) |
| spectral_type | C |
| abs_magnitude | 8.59 |
| albedo | 0.029 |
| single_temperature | ~170 K |
Atalanta |access-date=2012-01-23}} 110.14 ± 4.38 km
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). It was rendered 'Atalanta' in English sources in the 19th century. This asteroid is classified as C-type (carbonaceous), according to the Tholen classification system.
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. 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. Atalante was observed by Arecibo radar in October 2010.{{cite web |access-date=2012-01-23}}{{cite web |access-date=2012-01-23}}
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.
Notes
References
References
- 'Atalanta, Atalante' in ''The Century Dictionary and Cyclopedia''.
- E.g. John Milton (1749) ''Paradise Lost''
- John Craig (1869) ''The Universal English Dictionary''
- (September 2007). "The Rotation Periods of 36 Atalante and 416 Vaticana". The Minor Planet Bulletin.
- (September 1998). "Pole coordinates and shape of 30 asteroids". Astronomy and Astrophysics Supplement.
- (2003). "Dictionary of minor planet names". Springer.
This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.
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