78799 Xewioso
Hubble Space Telescope image of Xewioso taken on 20 September 2008 | |
| Discovery | |
|---|---|
| Discovered by | Palomar Obs. |
| Discovery site | Palomar Obs. |
| Discovery date | 10 December 2002 |
| Designations | |
| (78799) Xewioso | |
| Pronunciation | /ˌhɛviˈoʊsoʊ/ |
Named after | Xevioso |
| 2002 XW93 | |
| TNO · classical (inner/hot) · other TNO · distant | |
| Orbital characteristics | |
| Epoch 2025 May 05 (JD 2460800.5) | |
| Uncertainty parameter 2 | |
| Observation arc | 35.19 yr (12,854 d) |
| Earliest precovery date | 17 December 1989 |
| Aphelion | 46.88 AU |
| Perihelion | 28.49 AU |
| 37.68 AU | |
| Eccentricity | 0.2439 |
| 231.33 yr (84493±4 d) | |
| 153.53° | |
| 0° 0m 15.34s / day | |
| Inclination | 14.3307° |
| 46.700° | |
| 248.55° | |
| Known satellites | 0 |
| Physical characteristics | |
| 565+71 −73 km | |
| 0.038+0.043 −0.025 | |
| 5.4±0.7 4.86 (JPL/MPC) | |
78799 Xewioso (provisional designation 2002 XW93) is a trans-Neptunian object located in the inner edge of the Kuiper belt. It has a dark surface with a diameter between 490 and 640 kilometers (300 and 400 mi). It was discovered on 10 December 2002 by astronomers at Palomar Observatory in California.