(556416) 2014 OE394
_2014_OE394.png) Orbit diagram of (556416) 2014 OE394 | |
| 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 | |
| 304–486 km (est.)[3] 280-540 km (est.)[2] 240-730 km (est.)[4] | |
| Albedo | 0.15+0.08 −0.06 (geometric albedo) (est.) 0.054+0.040 −0.026(bond albedo) (est.) [3] |
Spectral type | B–V = 0.996±0.140 (est.)[3] V–R = 0.630±0.086 (est.) |
| 4.62[5] 4.65[4] | |
(556416) 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.[6] 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 304 and 486 kilometers across.[3]
2014 OE394 was observed by the New Horizons probe in September 2017 and August 2018. It passed [3] about 8.7 AU away from 2014 OE394 on 1 January 2017, and 7.5 AU on 1 January 2019.
Physical Characteristics
Size
2014 OE394 has an assumed diameter of 304 - 486 km, calculated by its assumed geometric albedo of 0.15+0.08
−0.06, and the authors have acknowledged that it is a possible dwarf planet.[3]
Spectra and surface
2014 OE394 has assumed color indices of B-V 0.996 ± 0.140, and V-R 0.630 ± 0.086, and as said before, its assumed geometric albedo is 0.15+0.08
−0.06, its assumed bond albedo is 0.054+0.040
−0.026, and its surface composition is unknown.[3]
See also
- (119951) 2002 KX14, one of the largest cold classical Kuiper belt objects
References
- ↑ Marc W. Buie. "Orbit Fit and Astrometric record for 14OE394". SwRI (Space Science Department). Archived from the original on 28 March 2019. Retrieved 17 February 2018.
- 1 2 "IAU Minor Planet Center - 2014 OE394". Minor Planet Center. International Astronomical Union. Retrieved 24 July 2016.
- 1 2 3 4 5 6 7 Verbiscer, Anne J.; Helfenstein, Paul; Porter, Simon B.; Benecchi, Susan D.; Kavelaars, J. J.; Lauer, Tod R.; et al. (April 2022). "The Diverse Shapes of Dwarf Planet and Large KBO Phase Curves Observed from New Horizons". The Planetary Science Journal. 3 (4): 31. Bibcode:2022PSJ.....3...95V. doi:10.3847/PSJ/ac63a6. 95.
- 1 2 "JPL Small-Body Database Browser". Jet Propulsion Laboratory. NASA. Retrieved 24 July 2016.
- ↑ "IAU Minor Planet Center".
- ↑ "MPEC 2016-O95 : 2014 OE394". Minor Planet Center. International Astronomical Union. Retrieved 24 July 2016.