astro.wikisort.org - Asteroid
Thia (minor planet designation: 405 Thia) is a very large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material. This object was discovered by Auguste Charlois on July 23, 1895, in Nice, and was named after Theia (sometimes written Thea or Thia), a Titaness in Greek mythology.[4]
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 23 July 1895 |
| Designations | |
MPC designation | (405) Thia |
| Pronunciation | /ˈθaɪə/[1] |
Named after | Theia |
Alternative designations | 1895 BZ |
Minor planet category | Main belt |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 116.83 yr (42671 d) |
| Aphelion | 3.2130 AU (480.66 Gm) |
| Perihelion | 1.9592 AU (293.09 Gm) |
Semi-major axis | 2.5861 AU (386.88 Gm) |
| Eccentricity | 0.24241 |
Orbital period (sidereal) | 4.16 yr (1519.0 d) |
Mean anomaly | 127.540° |
Mean motion | 0° 14m 13.164s / day |
| Inclination | 11.938° |
Longitude of ascending node | 255.245° |
Argument of perihelion | 308.83° |
| Physical characteristics | |
| Dimensions | 124.90±2.3 km[2] 122.14 ± 7.69 km[3] |
| Mass | (1.38 ± 0.14) × 1018 kg[3] |
Mean density | 1.44 ± 0.30 g/cm3[3] |
Synodic rotation period | 10.08 h (0.420 d) |
Geometric albedo | 0.0468±0.002 |
Spectral type | C |
Absolute magnitude (H) | 8.46 |
In 2002, the asteroid was detected by radar from the Arecibo Observatory at a distance of 1.31 AU. The resulting data yielded an effective diameter of 125 ± 16 km.[5]
References
- Noah Webster (1884) A Practical Dictionary of the English Language
- "405 Thia (1895 BZ)". 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.
- Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Berlin, Heidelberg, New York: Springer. p. 48. ISBN 3-540-00238-3. Archived from the original on 14 March 2014.
- Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999 2003" (PDF), Icarus, 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018, retrieved 14 April 2015.
External links
- 405 Thia at AstDyS-2, Asteroids—Dynamic Site
- 405 Thia at the JPL Small-Body Database
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На других языках
[de] (405) Thia
(405) Thia ist ein Asteroid des Hauptgürtels, der am 23. Juli 1895 vom französischen Astronomen Auguste Charlois in Nizza entdeckt wurde.- [en] 405 Thia
[es] (405) Thia
(405) Thia es un asteroide perteneciente al cinturón de asteroides descubierto el 23 de julio de 1895 por Auguste Honoré Charlois desde el observatorio de Niza, Francia. Está nombrado por Tea, una de las titánides.[2][ru] (405) Тейя
(405) Тейя (405 Thia по каталогу ЦМП[1]) — довольно крупный астероид главного пояса.Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.
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