1236 Thaïs
| Discovery [1] | |
|---|---|
| Discovered by | G. Neujmin |
| Discovery site | Simeiz Observatory |
| Discovery date | 6 November 1931 |
| Designations | |
| MPC designation | 1236 Thais |
|
Named after
|
Thaïs (ancient Greek hetaira)[2] |
| 1931 VX · 1957 LQ 1964 JH · 1965 WA |
|
| main-belt · (inner) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.01 yr (30,684 days) |
| Aphelion | 3.0184 AU |
| Perihelion | 1.8414 AU |
| 2.4299 AU | |
| Eccentricity | 0.2421 |
| 3.79 yr (1,384 days) | |
| 60.801° | |
| Inclination | 13.159° |
| 48.713° | |
| 305.56° | |
| Physical characteristics | |
| Dimensions | 22.34 km[4] 20.07±0.41 km[5] 19.163±1.790 km[6] |
| 72 h[7] | |
| 0.0599[4] 0.075±0.004[5] 0.0813±0.0159[6] |
|
| B–V = 0.785 U–B = 0.383 Tholen = T T [3] |
|
| 11.93 | |
1236 Thaïs, provisional designation 1931 VX, is a rare type of asteroid from the inner regions of the asteroid belt, about 20 kilometers in diameter. It was discovered on 6 November 1931, by Soviet–Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula.[8]
The dark and reddish T-type asteroid orbits the Sun at a distance of 1.8–3.0 AU once every 3 years and 9 months (1,384 days). Its orbit shows a high eccentricity of 0.24 and is tilted by 13 degrees to the plane of the ecliptic. It has a notably long rotation period of 72 hours[7] and an albedo in the range of 0.06 to 0.08, according to the surveys carried out by IRAS, Akari, and WISE/NEOWISE.[4][5][6]
It was later named after the famous Greek hetaera Thaïs who lived during the time of Alexander the Great and accompanied him on his campaigns.[2]
References
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- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 6.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
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External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1236 Thaïs at the JPL Small-Body Database
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