(556416) 2014 OE394

(556416) 2014 OE₃₉₄
Discovery
Discovered by	Pan-STARRS (F51)
Discovery site	F51, Haleakala Observatory
Discovery date	28 July 2014
Designations
Minor planet category	Classical Kuiper belt object
Orbital characteristics
	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
Semi-major axis	46.391 AU
Eccentricity	0.12040 ± 0.00005
Orbital period (sidereal)	316 years
Mean anomaly	70.25469°
Inclination	3.93206 ± 0.00008°
Longitude of ascending node	308.87986 ± 0.0004°
Argument of perihelion	259.35897 ± 0.008°
Physical characteristics
Mean diameter	280-540 km; 240-730 km
Absolute magnitude (H)	4.74

(556416) 2014 OE₃₉₄ (provisional designation 2014 OE₃₉₄) is a large cubewano in the Kuiper belt 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 is most likely between 240 and 730 kilometers across.^[4] Mike Brown's website lists it as a "possible" dwarf planet, with an estimated diameter of 337 kilometers.^[2]

2014 OE₃₉₄ was observed by the New Horizons probe in September 2017 and August 2018. It passed close by:^[7] about 8.7 AU away on 1 January 2017, and 7.5 AU on 1 January 2019.

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.
^ ^a ^b Brown, Mike. "How many dwarf planets are there in the outer solar system? (updates daily)". Mike Brown's Planets. Retrieved 24 July 2016.
^ ^a ^b "IAU Minor Planet Center - 2014 OE394". Minor Planet Center. International Astronomical Union. Retrieved 24 July 2016.
^ ^a ^b "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.
^ 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.

External links

(556416) 2014 OE394 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

[Buie-1] 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.

[MikeBrownEstimate-2] Brown, Mike. "How many dwarf planets are there in the outer solar system? (updates daily)". Mike Brown's Planets. Retrieved 24 July 2016.

[MPCorb-3] "IAU Minor Planet Center - 2014 OE394". Minor Planet Center. International Astronomical Union. Retrieved 24 July 2016.

[JPLorb-4] "JPL Small-Body Database Browser". Jet Propulsion Laboratory. NASA. Retrieved 24 July 2016.

[5] "IAU Minor Planet Center".

[MPCannounce-6] "MPEC 2016-O95 : 2014 OE394". Minor Planet Center. International Astronomical Union. Retrieved 24 July 2016.

[Verbiscer2022-7] 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.

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