| Discovery[1] | |
|---|---|
| Discovered by | A. Fitzsimmons D. O'Ceallaigh I. P. Williams |
| Discovery site | Roque de los Muchachos Obs. |
| Discovery date | 8 November 1994 |
| Designations | |
| (19255) 1994 VK8 | |
| none | |
| cubewano[2][3] (cold)[4] | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 7347 days (20.11 yr) |
| Aphelion | 44.40611 AU (6.643060 Tm) |
| Perihelion | 41.34116 AU (6.184550 Tm) |
| 42.87364 AU (6.413805 Tm) | |
| Eccentricity | 0.035744 |
| 280.73yr (102538d) | |
Averageorbital speed | 4.56 km/s |
| 267.925° | |
| 0° 0m 12.639s / day | |
| Inclination | 1.48856° |
| 72.3924° | |
| 112.111° | |
| TJupiter | 5.857 |
| Physical characteristics | |
| Dimensions | 175 km[3] |
| Mass | 5.6×1018 kg |
Meandensity | 2.0 g/cm3 |
Equatorialsurface gravity | 0.0489 m/s2 |
Equatorialescape velocity | 0.0925 km/s |
| 9 h (0.38 d)[1] | |
| 0.09 (assumed) | |
| Temperature | ~43K |
| ? | |
| 7.0[1] | |
(19255) 1994 VK8 is atrans-Neptunian object (TNO) of the "cold"cubewano class orbiting the Sun in theKuiper belt of the outer Solar System. It was discovered on November 8, 1994, byAlan Fitzsimmons,Donal O'Ceallaigh, andIwan P. Williams atRoque de los Muchachos Observatory on the island of La Palma, Spain.
1994 VK8 is the fourth cubewano to be given an officialMinor Planet Center catalog number.[5] The first three official cubewanos are15760 Albion,(15807) 1994 GV9, and(16684) 1994 JQ1.
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