Back 2004 KV18 German 2004 KV18 French 2004 KV18 Italian 2004 KV18 Polish 2004 KV18 Portuguese 2004 KV18 Russian 2004 KV18 Ukrainian 2004 KV18 Vietnamese
| Discovery[1][2] | |
|---|---|
| Discovery site | Mauna Kea Obs. |
| Discovery date | 24 May 2004 |
| Designations | |
| 2004 KV18 | |
| Neptune trojan · L5[3] TNO[1] · distant[2] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 1.94 yr (708 days) |
| Aphelion | 36.058 AU |
| Perihelion | 24.682 AU |
| 30.370 AU | |
| Eccentricity | 0.1873 |
| 167.37 yr (61,132 days) | |
| 69.474° | |
| 0° 0m 21.24s / day | |
| Inclination | 13.557° |
| 235.54° | |
| 296.57° | |
| Physical characteristics | |
| Dimensions | 56 km (assumed)[4] 71 km (est. at 0.10)[5] |
| 8.9[1] | |
2004 KV18 is an eccentric Neptune trojan trailing Neptune's orbit in the outer Solar System, approximately 70 kilometers in diameter. It was first observed on 24 May 2004, by astronomers at the Mauna Kea Observatories on Hawaii, United States.[2] It was the eighth Neptune trojan identified and the second in Neptune's L5 Lagrangian point.[3]
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