(145451) 2005 RM43
| Discovery [1] | |
|---|---|
| Discovered by | A. C. Becker A. W. Puckett J. M. Kubica |
| Discovery site | APO |
| Discovery date | 9 September 2005 |
| Designations | |
| MPC designation | (145451) 2005 RM43 |
| SDO[2] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 2 | |
| Observation arc | 14323 days (39.21 yr) |
| Aphelion | 145.68 AU (21.793 Tm) |
| Perihelion | 35.128 AU (5.2551 Tm) |
| 90.405 AU (13.5244 Tm) | |
| Eccentricity | 0.61143 |
| 859.60 yr (313968 d) | |
|
Average orbital speed
|
0.00113°/d |
| 4.6425° | |
| Inclination | 28.759° |
| 84.641° | |
| 318.55° | |
| Earth MOID | 34.1897 AU (5.11471 Tm) |
| Jupiter MOID | 30.3841 AU (4.54540 Tm) |
| Physical characteristics | |
| Dimensions | 580 km (assumed)[3] |
| 6.71 h (0.280 d) | |
|
Sidereal rotation period
|
6.71 hours |
| 0.09 (assumed) | |
| B0−V0=0.590 (neutral)[4] | |
| 4.4[1] | |
(145451) 2005 RM43, also written as (145451) 2005 RM43, is a trans-Neptunian object that resides in the scattered disc region beyond the Kuiper belt. It was discovered on September 9, 2005 by Andrew Becker, Andrew Puckett and Jeremy Kubica at Apache Point Observatory in Sunspot, New Mexico.
(145451) 2005 RM43 is considered likely to be a dwarf planet by both, Brown and Tancredi.[5][6] Based on an absolute magnitude of 4.4, the body's diameter could be anywhere in the range of 350 to 800 kilometres, depending on its albedo, the surface reflectivity of the object.[7] One source gives an estimate of 580 km.[3]
It has been observed 219 times over eleven oppositions, with precovery images back to 1976.[1] The orbit is well determined with an uncertainty parameter of 2.[1]
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.
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External links
- Orbital simulation from JPL (Java) / Ephemeris
- (145451) 2005 RM43 Precovery Images
- (145451) 2005 RM43 at the JPL Small-Body Database
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