405 Thia
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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. 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.[1]
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 Template:Nowrap.[2] NEOWISE data suggests the asteroid is 110 km in diameter.[3]
On 4 May 1990 Thia passed Script error: No such module "convert". from Earth[4] and will pass that close again on 29 April 2073.
405 Thia currently has a Minimum orbit intersection distance with Earth of Script error: No such module "convert"..[3] On 2 June 2023 the asteroid reached perihelion (closest approach to the Sun).[3]
| Date & time of closest approach |
Earth distance (AU) |
Sun distance (AU) |
Velocity wrt Earth (km/s) |
Velocity wrt Sun (km/s) |
Uncertainty region (3-sigma) |
Reference |
|---|---|---|---|---|---|---|
| 2023-03-20 19:40 | Script error: No such module "convert". | Script error: No such module "convert". | 6.8 | 23.3 | ± 16 km | Horizons |
References
External links
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