(445473) 2010 VZ98
| Discovery[1] | |
|---|---|
| Discovery date | November 2010 |
| Designations | |
Designation | 2010 VZ98 |
| TNO (SDO)[2] | |
| Orbital characteristics[3] | |
| Epoch January 13, 2016 (JD 2457400.5) | |
| Uncertainty parameter 1 | |
| Aphelion | 271.482 AU (Q) |
| Perihelion | 34.3218 ± 0.0014 AU (q) |
| 152.9019 AU (a) | |
| Eccentricity | 0.77553 ± 0.00016 |
| 1891 yr | |
| 357.73300 | |
| Inclination | 4.50967°±0.00001° |
| 117.4391°±0.0045° (Ω) | |
| 313.9021°±0.0045° (ω) | |
| Physical characteristics | |
| Dimensions | 461 km (assumed)[4] |
| 9.72 h?[5] | |
| Albedo | 0.07 (assumed)[4] |
| 5.1[3] | |
(445473) 2010 VZ98 is a trans-Neptunian object (TNO) orbiting the Sun in the scattered disc. It was discovered in November 2010 when it was 38 AU from the Sun. With an absolute magnitude of 5.0,[5] it is likely a dwarf planet and might be around 500 kilometres (310 mi) in diameter.[4]
Small number statistics suggest (445473) 2010 VZ98 may be trapped in a 3:2 orbital resonance with an unseen planet beyond Neptune with a semi-major axis of 195–215 AU.[6]
In May 2015, precovery images of 2010 VZ98 from 1998 were found, and have been accepted by the Minor Planet Center but not the JPL. Therefore, the JPL orbit for the asteroid is less accurate.
References
- ^ "MPEC 2011-Q57 : 2010 VZ98". IAU Minor Planet Center. 2011-08-31. Retrieved 2012-08-31.
- ^ "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 2012-08-31.
- ^ a b "IAU Minor Planet Center: (445473) 2010 VZ98" (last observation: 2015-10-12; arc: 17 years years). Retrieved 2015-11-11.
- ^ a b c Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Retrieved 2012-08-31.
- ^ a b "JPL Small-Body Database Browser: (2010 VZ98)" (last observation: 2013-11-04; arc: 2.98 years). Retrieved 2014-06-12.
- ^ de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (1 September 2014). "Extreme trans-Neptunian objects and the Kozai mechanism: signalling the presence of trans-Plutonian planets". Monthly Notices of the Royal Astronomical Society: Letters. 443 (1): L59–L63. arXiv:1406.0715. Bibcode:2014MNRAS.443L..59D. doi:10.1093/mnrasl/slu084.
External links
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