405 Thia

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Not to be confused with 453 Tea or Theia (planet).
405 Thia
Discovery
Discovered by Auguste Charlois
Discovery date July 23, 1895
Designations
Named after
Theia
1895 BZ
Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion 3.216 AU
Perihelion 1.953 AU
2.584 AU
Eccentricity 0.244
1517.321 d (4.15 a)
18.53 km/s
210.706°
Inclination 11.949°
255.303°
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
8.46

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.[2]

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.[3]


References[edit]

  1. ^ a b c 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.
  2. ^ Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Berlin, Heidelberg, New York: Springer. p. 48. ISBN 3-540-00238-3. 
  3. ^ 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 2015-04-14. 

External links[edit]