| Discovery[1] | |
|---|---|
| Discovered by | Observers S. S. Sheppard, A. Udalski, I. Soszynski |
| Discovery site | Las Campanas Observatory, Chile |
| Discovery date | 17 March 2010 |
| Designations | |
| 2010 FX86 | |
| TNO[2] distant[3] | |
| Orbital characteristics[2] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter3 | |
| Observation arc | 2634 days (7.21 yr) |
| Aphelion | 50.161 AU (7.5040 Tm) |
| Perihelion | 44.109 AU (6.5986 Tm) |
| 47.135 AU (7.0513 Tm) | |
| Eccentricity | 0.064199 |
| 323.61 yr (118199 d) | |
| 295.094° | |
| 0° 0m 10.965s /day | |
| Inclination | 25.1697° |
| 311.074° | |
| ≈ 25 February 2084[4] ±44 days | |
| 347.887° | |
| Earth MOID | 43.0966 AU (6.44716 Tm) |
| Jupiter MOID | 39.0007 AU (5.83442 Tm) |
| Physical characteristics | |
| 305–682 km[2][3][5][a] 549 km[6][b] | |
| 15.80 h (0.658 d)[2][c] | |
| 0.09 (assumed)[6] | |
| 4.7[2][3] 4.6[6] | |
2010 FX86, also written 2010 FX86, is a relatively bright trans-Neptunian object[2] with an absolute magnitude of about 4.65.[2][3][6]
It was first discovered on 17 March 2010, at Las Campanas Observatory in Chile, by S. S. Sheppard, A. Udalski and I. Soszynski. No earlier precovery images for it have been found. It is estimated to be about 520 kilometres (320 mi) in diameter,[6] with a rotation period of approximately 15.80 hours,[2] but as yet no detailed photometry has been taken to properly determine colour or albedo, or to better confirm its rotational lightcurve.
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