(229762) 2007 UK126
![]() (229762) 2007 UK126 photographed by the UK Schmidt Telescope.
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Discovery[1] | |
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Discovered by | M. E. Schwamb M. E. Brown D. L. Rabinowitz |
Discovery date | October 19, 2007 |
Designations | |
MPC designation | (229762) 2007 UK126 |
Scat-ext[2][3] | |
Orbital characteristics[6] | |
Epoch September 30, 2012 (JD 2456200.5) | |
Aphelion | 111.1426 AU (Q) |
Perihelion | 37.6252 AU (q) |
74.3839 AU (a) | |
Eccentricity | 0.4942 |
640.55 a (234324.7 d) | |
341.36848° (M) | |
Inclination | 23.34941° |
131.22344° | |
345.79987° | |
Known satellites | 1[4][5] |
Physical characteristics | |
Dimensions | 599±77 km[5] 612 km[7] |
Albedo | 0.167+0.058 −0.038[5] |
20.8[1] | |
3.69±0.10[5] 3.43[6] |
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(229762) 2007 UK126, also written as (229762) 2007 UK126, is a scattered disc object (SDO) with a bright absolute magnitude of 3.7.[5] This makes it probably a dwarf planet. As of August 2011[update], Mike Brown lists it as highly likely a dwarf planet.[8] Its light-curve amplitude is estimated to be Δm=0.111 mag.[9]
Its orbital eccentricity of 0.49 suggests that it was gravitationally scattered onto its eccentric orbit. It will come to perihelion in February 2046.[6]
It has been observed 73 times over 11 oppositions with precovery images back to 1982.[6]
Satellite
It has been reported that (229762) 2007 UK126 has a satellite, but a mass estimate has not been made.[5] The magnitude difference between the primary and the satellite is 3.79 mag. The satellite has a tentative diameter of 139 km, a semi-major axis of 3600 km, and an orbital period of 3.7 d.[4]
See also
References
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External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 2007 UK126 Precovery Images
- 3rd largest scattered disk object discovered (Yahoo Groups)
- 2007 UK126 Minor planet designation number
- ↑ 1.0 1.1 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.
- ↑ 4.0 4.1 (229762) 2007 UK126, Johnston's Archive. Last updated 20 September 2011
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 6.2 6.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)"
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Roland, S., Bruzzone, S., Nowajewski, P., Tancredi, G., Barrera, L., Martinez, M., Troncoso, P., & Vasquez, S. (2009). Lightcurves of Icy “Dwarf Planets” (Plutoids)
- Pages with reference errors
- Articles containing potentially dated statements from August 2011
- Scattered disc and detached objects
- Possible dwarf planets
- Astronomical objects discovered in 2007
- Discoveries by Michael E. Brown
- Discoveries by David L. Rabinowitz
- Binary trans-Neptunian objects
- Numbered asteroids