2012 VP113
2012 VP113, also known by its nickname "Biden", is a trans-Neptunian object of the sednoid population, located in the outermost reaches of the Solar System. It was first observed on 5 November 2012 by American astronomers Scott Sheppard and Chad Trujillo at the Cerro Tololo Inter-American Observatory in Chile. The discovery was announced on 26 March 2014. The object probably measures somewhere between 300 and 1000 km in diameter, possibly large enough to be a dwarf planet.
Orbital diagrams of 2012 VP113 with Pluto and the outer planets as of 2017 | |
| Discovery | |
|---|---|
| Discovered by |
|
| Discovery site | Cerro Tololo Obs. |
| Discovery date | 5 November 2012 (announced: 26 March 2014) |
| Designations | |
MPC designation | 2012 VP113 |
Alternative designations | "Biden" (nickname) |
Minor planet category |
|
| Orbital characteristics | |
| Epoch 2022 Aug 09 (JD 2459800.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 8.29 yr (3,028 d) |
| Aphelion | 462±1 AU |
| Perihelion |
|
Semi-major axis | 271.5±0.6 AU |
| Eccentricity | 0.7036±0.0007 |
Orbital period (sidereal) |
|
Mean anomaly | 3.50°±0.01° |
Mean motion | 0° 0m 0.792s / day |
| Inclination | 24.0563°±0.006° |
Longitude of ascending node | 90.787° |
| ≈ 28 September 1979 | |
| 293.8° | |
| Physical characteristics | |
Mean diameter | 574 km? 300–1000 km |
| |
| |
| 23.34 | |
| 4.1 | |
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