Astronomy:(556416) 2014 OE394

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(556416) 2014 OE394
Discovery
Discovered byPan-STARRS (F51)
Discovery siteF51, Haleakala Observatory
Discovery date28 July 2014
Designations
Minor planet categoryClassical Kuiper belt object[1][2]
Orbital characteristics[3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 2
Observation arc1452 days (5 oppositions)
|{{{apsis}}}|helion}}51.976 AU
|{{{apsis}}}|helion}}40.805 ± 0.002 AU
46.391 AU
Eccentricity0.12040 ± 0.00005
Orbital period316 years
Mean anomaly70.25469°
Inclination3.93206 ± 0.00008°
Longitude of ascending node308.87986 ± 0.0004°
259.35897 ± 0.008°
Physical characteristics
Mean diameter280-540 km[3]
240-730 km[4]
Absolute magnitude (H)4.74[5]


(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

  1. ↑ Marc W. Buie. "Orbit Fit and Astrometric record for 14OE394". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/14OE394.html. Retrieved 2018-02-17. 
  2. ↑ 2.0 2.1 Brown, Mike. "How many dwarf planets are there in the outer solar system? (updates daily)". http://web.gps.caltech.edu/~mbrown/dps.html. Retrieved 24 July 2016. 
  3. ↑ 3.0 3.1 "IAU Minor Planet Center - 2014 OE394". International Astronomical Union. http://www.minorplanetcenter.net/db_search/show_object?object_id=2014+OE394. Retrieved 24 July 2016. 
  4. ↑ 4.0 4.1 "JPL Small-Body Database Browser". NASA. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014OE394. Retrieved 24 July 2016. 
  5. ↑ http://www.minorplanetcenter.net/db_search/show_object?object_id=556416
  6. ↑ "MPEC 2016-O95 : 2014 OE394". International Astronomical Union. http://www.minorplanetcenter.net/mpec/K16/K16O95.html. Retrieved 24 July 2016. 
  7. ↑ Verbiscer, Anne J.Expression error: Unrecognized word "etal". (April 2022). "The Diverse Shapes of Dwarf Planet and Large KBO Phase Curves Observed from New Horizons". The Planetary Science Journal 3 (4): 31. doi:10.3847/PSJ/ac63a6. 95. Bibcode: 2022PSJ.....3...95V. 

External links



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