405 Thia
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| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | July 23, 1895 |
| Designations | |
| Named after | Theia |
| Alternative names | 1895 BZ |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 481.088 Gm (3.216 AU) |
| Perihelion | 292.091 Gm (1.953 AU) |
| Semi-major axis | 386.59 Gm (2.584 AU) |
| Eccentricity | 0.244 |
| Orbital period | 1517.321 d (4.15 a) |
| Average orbital speed | 18.53 km/s |
| Mean anomaly | 210.706° |
| Inclination | 11.949° |
| Longitude of ascending node | 255.303° |
| Argument of perihelion | 309.2° |
| Physical characteristics | |
| Dimensions | 122.14 ± 7.69[1] km |
| Mass | (1.38 ± 0.14) × 1018[1] kg |
| Mean density | 1.44 ± 0.30[1] g/cm3 |
| Spectral type | C |
| Absolute magnitude (H) | 8.46 |
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405 Thia is a very large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.
It was discovered by Auguste Charlois on July 23, 1895, in Nice. Named after Theia (sometimes written Thea or Thia), a Titaness in Greek mythology.[2]
References
- ↑ 1.0 1.1 1.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 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.
External links
- 405 Thia at the JPL Small-Body Database
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