2013 FT28
The orbit of 2013 FT28 (right side in light blue, click image to enlarge) and other extreme detached objects, along with the hypothetical Planet Nine's orbit on the right
|
|
| Discovery | |
|---|---|
| Discovered by | Scott S. Sheppard and Chad Trujillo |
| Discovery date | March 16, 2013 |
| Designations | |
| MPC designation | 2013 FT28 |
| Extreme | |
| Orbital characteristics | |
| Epoch 2016-July-31.0 (JD 2457600.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 1089 days (2.98 yr) |
| Aphelion | 546 AU (barycentric) 580 AU |
| Perihelion | 43.6 AU |
| 295 AU (barycentric) 312 AU |
|
| Eccentricity | 0.86 |
| 5051 yr (barycentric) 5460 yr (89370.137 d) |
|
| 357.15° | |
| Inclination | 17.3 ° |
| 217.7° | |
| 40.2° | |
| Physical characteristics | |
| Dimensions | 100–400 km |
| 24.3 | |
| 6.7 | |
2013 FT28 is a Trans-Neptunian object. The existence of the TNO was revealed on 30 August 2016. 2013 FT28 is the first high semi-major axis, high perihelion extreme trans-Neptunian object that is anti-aligned with the other known extreme trans-Neptunian objects such as Sedna and 2012 VP113 i.e. its longitude of perihelion differs by 180° from other objects. The orbit of 2013 FT28 appears stable though simulations showed that it there may be some resonant interaction the known giant planets.
...
Wikipedia