(556416) 2014 OE394
Large cubewano and possible dwarf planet
From Wikipedia, the free encyclopedia
(556416) 2014 OE394 (provisional designation 2014 OE394) is a classical Kuiper belt object that was discovered in July 2014 by the Pan-STARRS 1 telescope, and announced on 17 July 2016.[5] It is one of the brighter trans-Neptunian objects, being the 34th brightest cubewano as of 23 July 2016. Its exact size is unknown, but it is most likely between 240 and 730 kilometers across.[3]
DiscoveredbyPan-STARRS (F51)
Discoverydate28 July 2014
| Discovery | |
|---|---|
| Discovered by | Pan-STARRS (F51) |
| Discovery site | F51, Haleakala Observatory |
| Discovery date | 28 July 2014 |
| Designations | |
| Classical Kuiper belt object[1] | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 2 | |
| Observation arc | 1452 days (5 oppositions) |
| Aphelion | 51.976 AU |
| Perihelion | 40.805 ± 0.002 AU |
| 46.391 AU | |
| Eccentricity | 0.12040 ± 0.00005 |
| 316 years | |
| 70.25469° | |
| Inclination | 3.93206 ± 0.00008° |
| 308.87986 ± 0.0004° | |
| 259.35897 ± 0.008° | |
| Known satellites | 0 |
| Physical characteristics | |
| 280-540 km[2] 240-730 km[3] | |
| 4.62[4] 4.65[3] | |
2014 OE394 was observed by the New Horizons probe in September 2017 and August 2018. It passed close by:[6] about 8.7 AU away on 1 January 2017, and 7.5 AU on 1 January 2019.
See also
- (119951) 2002 KX14, one of the largest cold classical Kuiper belt objects
