(556416) 2014 OE394

(556416) 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]

(556416) 2014 OE394
Discovery
Discovered byPan-STARRS (F51)
Discovery siteF51, Haleakala Observatory
Discovery date28 July 2014
Designations
Classical Kuiper belt object[1][2]
Orbital characteristics[3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 2
Observation arc1452 days (5 oppositions)
Aphelion51.976 AU
Perihelion40.805 ± 0.002 AU
46.391 AU
Eccentricity0.12040 ± 0.00005
316 years
70.25469°
Inclination3.93206 ± 0.00008°
308.87986 ± 0.0004°
259.35897 ± 0.008°
Physical characteristics
Mean diameter
280-540 km[3]
240-730 km[4]
4.74[5]

    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). Archived from the original on 28 March 2019. Retrieved 17 February 2018.
    2. Brown, Mike. "How many dwarf planets are there in the outer solar system? (updates daily)". Mike Brown's Planets. Retrieved 24 July 2016.
    3. "IAU Minor Planet Center - 2014 OE394". Minor Planet Center. International Astronomical Union. Retrieved 24 July 2016.
    4. "JPL Small-Body Database Browser". Jet Propulsion Laboratory. NASA. Retrieved 24 July 2016.
    5. http://www.minorplanetcenter.net/db_search/show_object?object_id=556416
    6. "MPEC 2016-O95 : 2014 OE394". Minor Planet Center. International Astronomical Union. Retrieved 24 July 2016.
    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.
    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.