Discovery[1] | |
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Discovered by | |
Discovery site | Cerro Tololo Obs. |
Discovery date | 26 March 2014 |
Designations | |
2014 FE72 | |
Orbital characteristics[2] | |
Epoch 21 January 2022 (JD 2459600.5) | |
Uncertainty parameter 3 | |
Observation arc | 6.98 yr (2,549 days) |
Aphelion |
|
Perihelion |
|
| |
Eccentricity |
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| |
| |
0° 0m 0.055s / day | |
Inclination |
|
| |
≈ 6 October 1965[4] ±11 days | |
| |
Physical characteristics | |
270 km (est. at 0.08)[5][6] | |
24.3[7] | |
6.19[2] | |
2014 FE72 is a trans-Neptunian object first observed on 26 March 2014, at Cerro Tololo Inter-American Observatory in La Serena, Chile. It is a possible dwarf planet,[5] a member of the scattered disc, whose orbit extends into the inner Oort cloud.[1] Discovered by Scott Sheppard and Chad Trujillo, the object's existence was revealed on 29 August 2016.[1][8] Both the orbital period and aphelion distance of this object are well constrained.[2] 2014 FE72 had the largest barycentric aphelion until 2018. However, the heliocentric aphelion of 2014 FE72 is second among trans-Neptunian objects (after the damocloid 2017 MB7). As of 2023[update], it is about 66 AU (9.9 billion km) from the Sun.[7]
Using the Solar System Barycenter as the orbital frame of reference, 2014 FE72's extremely elongated orbit (eccentricity = 0.98) has a perihelion of 36.1 AU, an aphelion of ~4,050 AU and a barycentric orbital period of ~92,400 years.[3] The latter values are the largest known for any Solar System body that is not a long-period comet.[n 1] Based on the barycentric orbital period, 2014 FE72 takes roughly 5 times longer than Sedna to orbit the Sun.[10]
2014 FE72 last passed through perihelion around late 1965.[2]
TNO classes | |
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Dwarf planets (moons) | |
Sednoids |
Minor planets |
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Comets | |||||||
Other |