astro.wikisort.org - AsteroidCirce, minor planet designation 34 Circe, is a large, very dark main-belt asteroid. It was discovered by French astronomer J. Chacornac on April 6, 1855, and named after Circe, the bewitching queen of Aeaea island in Greek mythology.
Main-belt asteroid
34 Circe A three-dimensional model of 34 Circe based on its light curve |
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Discovered by | J. Chacornac |
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Discovery date | April 6, 1855 |
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Designation | (34) Circe |
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Pronunciation | [1] |
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Named after | Circe |
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Alternative names | 1965 JL |
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Minor planet category | Main belt |
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Adjectives | Circean [2] |
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Epoch November 4, 2013 (JD 2456600.5) |
Aphelion | 2.967739 AU |
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Perihelion | 2.406230 AU |
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Semi-major axis | 2.686984 AU |
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Eccentricity | 0.1045 |
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Orbital period (sidereal) | 4.40 a (1607.332 d) |
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Average orbital speed | 18.12 km/s |
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Mean anomaly | 39.80474° |
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Inclination | 5.498° |
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Longitude of ascending node | 184.44157° |
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Argument of perihelion | 330.2330° |
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Dimensions | 113.02 ± 4.90 km[4] |
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Mass | (3.66 ± 0.03) × 1018 kg[4] |
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Mean density | 4.83 ± 0.63 g/cm3[4] |
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Surface gravity | ~0.0317 m/s² |
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Escape velocity | ~0.0600 km/s |
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Synodic rotation period | 0.5063 d (12.15 h) [3] |
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Albedo | 0.0541 [3] |
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Temperature | ~172 K |
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Spectral type | C |
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Absolute magnitude (H) | 8.51 |
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The spectrum of this object matches a C-type asteroid, suggesting a carbonaceous composition. It has a cross-section size of 113 km and is orbiting the Sun with a period of 4.40 years. Photometric observations of this asteroid made during 2007 at the Organ Mesa Observatory in Las Cruces, New Mexico gave an asymmetrical bimodal light curve with a period of 12.176 ± 0.002 hours and a brightness variation of 0.17 ± 0.02 in magnitude.[5] The spectra of the asteroid displays evidence of aqueous alteration.[6]
References
- "Circe". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 22 March 2020.
- "Circean". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
- Yeomans, Donald K., "34 Circe", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 21 December 2013.
- Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009, S2CID 119226456. See Table 1.
- Pilcher, Frederick (September 2008), "Period Determinations for 26 Proserpina, 34 Circe 74 Galatea, 143 Adria, 272 Antonia, 419 Aurelia, and 557 Violetta", The Minor Planet Bulletin, 35 (3): 135–138, Bibcode:2008MPBu...35..135P.
- Fornasier, S.; et al. (February 1999), "Spectroscopic comparison of aqueous altered asteroids with CM2 carbonaceous chondrite meteorites", Astronomy and Astrophysics Supplement, 135: 65−73, Bibcode:1999A&AS..135...65F, doi:10.1051/aas:1999161.
External links
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На других языках
[de] (34) Circe
(34) Circe ist ein Asteroid des Asteroiden-Hauptgürtels, der am 6. April 1855 vom französischen Astronomen Jean Chacornac entdeckt wurde.
- [en] 34 Circe
[es] (34) Circe
(34) Circe es un asteroide perteneciente al cinturón de asteroides descubierto por Jean Chacornac el 6 de abril de 1855 desde el observatorio de París, Francia. Está nombrado por Circe, una diosecilla de la mitología griega.[2]
[ru] (34) Цирцея
(34) Цирцея (лат. Circe) — астероид главного пояса, принадлежащий к тёмному спектральному классу C. Он был открыт 6 апреля 1855 года французским астрономом Жаном Шакорнаком в Марсельской обсерватории, Франция и назван членами Парижской обсерватории в честь Цирцеи, дочери Гелиоса и океаниды Персеиды в древнегреческой мифологии[2].
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