astro.wikisort.org - AsteroidSiegena (minor planet designation: 386 Siegena) is a very large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of primitive carbonaceous material.
386 Siegena A three-dimensional model of 386 Siegena based on its light curve |
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| Discovered by | Max Wolf |
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| Discovery date | 1 March 1894 |
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MPC designation | (386) Siegena |
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| Pronunciation | SEE-gə-nə[1] |
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Named after | Siegen |
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Alternative designations | 1894 AY |
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Minor planet category | Main belt |
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| Adjectives | Siegenian see-GHEN-ee-ən[2] |
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| Epoch 31 July 2016 (JD 2457600.5) |
| Uncertainty parameter 0 |
| Observation arc | 122.08 yr (44590 d) |
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| Aphelion | 3.38983 AU (507.111 Gm) |
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| Perihelion | 2.40159 AU (359.273 Gm) |
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Semi-major axis | 2.89571 AU (433.192 Gm) |
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| Eccentricity | 0.17064 |
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Orbital period (sidereal) | 4.93 yr (1799.8 d) |
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Mean anomaly | 66.7510° |
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Mean motion | 0° 12m 0.068s / day |
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| Inclination | 20.2568° |
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Longitude of ascending node | 166.886° |
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Argument of perihelion | 219.478° |
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| Dimensions | 165.01±2.7 km[3] 170.35 ± 8.40 km[4] |
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| Mass | (8.14 ± 1.58) × 1018 kg[4] |
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Mean density | 3.14 ± 0.76 g/cm3[4] |
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Synodic rotation period | 9.763 h (0.4068 d) |
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Geometric albedo | 0.0692±0.002 |
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Spectral type | C |
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Absolute magnitude (H) | 7.43 |
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It was discovered by Max Wolf on March 1, 1894, in Heidelberg.
During 1999, the asteroid was observed occulting a star. The resulting chords provided a diameter estimate of 174 km.[5]
References
- per "siegenite". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
- "Siegenian". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
- "386 Siegena (1894 AY)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
- 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.
- Shevchenko, Vasilij G.; Tedesco, Edward F. (September 2006), "Asteroid albedos deduced from stellar occultations", Icarus, 184 (1): 211–220, Bibcode:2006Icar..184..211S, doi:10.1016/j.icarus.2006.04.006.
External links
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На других языках
[de] (386) Siegena
(386) Siegena ist ein Asteroid des Asteroiden-Hauptgürtels, der am 1. März 1894 von Max Wolf in Heidelberg entdeckt wurde.
- [en] 386 Siegena
[es] (386) Siegena
(386) Siegena es un asteroide perteneciente al cinturón de asteroides descubierto el 1 de marzo de 1894 por Maximilian Franz Wolf desde el observatorio de Heidelberg-Königstuhl, Alemania.
Está nombrado por la ciudad alemana de Siegen.[2]
[fr] (386) Siegena
(386) Siegena est un astéroïde de la ceinture principale découvert par Max Wolf le 1er mars 1894.
[it] 386 Siegena
386 Siegena è un asteroide della fascia principale del diametro medio di circa 165,01 km. Scoperto nel 1894, presenta un'orbita caratterizzata da un semiasse maggiore pari a 2,8941017 UA e da un'eccentricità di 0,1729483, inclinata di 20,25597° rispetto all'eclittica.
[ru] (386) Зигена
(386) Зигена (лат. Siegena) — крупный астероид главного пояса, который принадлежит к тёмному спектральному классу C. Он был открыт 1 марта 1894 года немецким астрономом Максом Вольфом в обсерватории Хайдельберга и назван в честь немецкого города Зиген[1].
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