(82075) 2000 YW134
| Discovery[1] | |
|---|---|
| Discovered by | Kitt Peak |
| Discovery date | 2000-12-26 |
| Designations | |
| MPC designation | (82075) 2000 YW134 |
| 3:8 resonance?[2] Detached? |
|
| Orbital characteristics[1] | |
| Epoch 4 November 2013 (2456600.5) | |
| Aphelion | 75.485 AU (Q) |
| Perihelion | 41.157 AU (q) |
| 58.321 AU (a) | |
| Eccentricity | 0.2943 |
| 445.4 yr | |
| 27.94° (M) | |
| Inclination | 19.7720° |
| 126.9423° | |
| 316.71° | |
| Known satellites | S/2005 (82075) 1[3] (≈237 km in diameter) |
| Physical characteristics | |
| Dimensions | ≈455 km[4] <500 km[5] |
| Albedo | >0.08[5] |
|
Spectral type
|
B−V=0.92; V−R=0.55[6] |
| ≈21.5[7] | |
| 4.74[6] | |
(82075) 2000 YW134, provisionally known as 2000 YW134, is a binary trans-Neptunian object (TNO). It is likely in 3:8 resonance with Neptune or possibly a detached object.
Physical characteristics
Assuming a generic TNO albedo of 0.09, the primary is about 431 kilometres (268 mi) in diameter with its secondary at 237 kilometres (147 mi) in diameter.[3][4] In 2010, (82075) 2000 YW134 was observed by the Herschel Space Telescope in the far-infrared. No thermal radiation has been detected, which allowed astronomers to place an upper limit on its size; the single-object diameter should be less than 500 kilometres (310 mi).[5]
In the visible part of the spectrum, the surface of (82075) 2000 YW134 is moderately red.[6]
Classifications
- Possible dwarf planet
With a generically estimated diameter of 430 kilometres (270 mi), (82075) 2000 YW134 is a possible dwarf planet.[8]
- Uncertain category
(82075) 2000 YW134 currently has a perihelion distance of 41 astronomical units (AU).[1] In 2006, Lykawka, using a 4–5 Gyr integration, indicated that (82075) 2000 YW134 is a detached object with perihelion larger than 40 AU. However, the Deep Ecliptic Survey, using a 10My integration (last observation: 2007-11-10), shows it to be in 3:8 resonance with Neptune, with a minimum perihelion distance of 38.1 AU.[2] In 2007, Emel’yanenko and Kiseleva showed an 84% probability that it is in the 3:8 resonance.[9]
Satellite
The moon of (82075) 2000 YW134 is relatively large compared to the primary, because the moon is only 1.3 magnitudes fainter than the primary.[10]
References
- ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 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 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.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
