(523671) 2013 FZ27

(523671) 2013 FZ27
Discovery [1]
Discovered by Pan-STARRS 1
Discovery site Haleakala Obs.
Discovery date 15 December 2010
Designations
MPC designation (523671) 2013 FZ27
2013 FZ27
TNO [2] · distant [1]
other TNO [3] · p-DP [4]
Orbital characteristics [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 3
Observation arc 17.07 yr (6,234 d)
Aphelion 58.713 AU
Perihelion 37.574 AU
48.143 AU
Eccentricity 0.2196
334.05 yr (122,013 d)
282.75°
0° 0m 10.8s / day
Inclination 14.059°
285.22°
341.93°
Physical characteristics
Mean diameter
 561 km (est.)[4]
584 km[3]
0.09 (est.)[3][4]
4.4[2]
4.6[4]

    (523671) 2013 FZ27, provisional designation 2013 FZ27, is a trans-Neptunian object and likely dwarf planet, located in the Kuiper belt in the outermost region of the Solar System, approximately 570 kilometers (350 miles) in diameter. It was discovered on 15 December 2010, by astronomers with the Pan-STARRS-1 survey at the Haleakala Observatory, Hawaii, in the United States.[1] Numbered in 2018, this minor planet has not been named.

    Orbit and classification

    2013 FZ27 is a trans-Neptunian object (TNO),[5] located beyond the orbit of Neptune (30.1 AU). The Johnston's archive classifies it as an unspecific "other TNO", meaning that the minor planet is neither a resonant nor a classical TNO.[3] Astronomer Michael Brown considers 2013 FZ27 to be a "likely" dwarf-planet candidate, reserved for objects with an estimated diameter of 500–600 kilometer, which ranks below the "nearly certainly" (a diameter of more than 900 km) and "highly likely" (600–900 km) category, but is more certain than the "probably" (400–500 km) and "possibly" (200–400 km) categories.[4]

    2013 FZ27 orbits the Sun at a distance of 37.6–58.7 AU once every 334 years and 1 month (122,013 days; semi-major axis of 48.14 AU). Its orbit has an eccentricity of 0.22 and an inclination of 14° with respect to the ecliptic.[2]

    The body's observation arc begins with a precovery taken by the Sloan Digital Sky Survey in February 2001, almost 10 years prior to its official discovery observation at Haleakala.[1] While Pan-STARRS is credited with the discovery in December 2010, the object was first announced much later on 2 April 2014, when American astronomers Scott Sheppard and Chad Trujillo at the CTIO in Chile published their observations in an Minor Planet Electronic Circular. At the time the objects was at 49 AU from the Sun and had an apparent magnitude of 21.1.[6]

    Numbering and naming

    This minor planet was numbered by the Minor Planet Center on 25 September 2018 (M.P.C. 111778).[7] As of 2018, it has not been named.[1]

    Physical characteristics

    Diameter and albedo

    According to Michael Brown and the Johnston's archive, 2013 FZ27 measures 561 and 584 kilometers in diameter, based on an absolute magnitude of 4.4 and 4.6, respectively. Both sources assume a standard albedo of 0.09 for the body's surface.[3][4] As of 2018, no physical characteristics have been determined from photometric observations. The body's rotation period, pole and shape remain unknown.[2][8][9]

    See also

    References

    1. 1 2 3 4 5 "523671 (2013 FZ27)". Minor Planet Center. Retrieved 7 October 2018.
    2. 1 2 3 4 5 "JPL Small-Body Database Browser: 523671 (2013 FZ27)" (2018-03-17 last obs.). Jet Propulsion Laboratory. Retrieved 7 October 2018.
    3. 1 2 3 4 5 Johnston, Wm. Robert (30 September 2018). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 7 October 2018.
    4. 1 2 3 4 5 6 Brown, Michael E. "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Retrieved 7 October 2018.
    5. ↑ "List Of Transneptunian Objects". Minor Planet Center. Retrieved 7 October 2018.
    6. ↑ "MPEC 2014-G07 : 2013 FZ27". Minor Planet Electronic Circular – Minor Planet Center. 2 April 2014. Retrieved 7 October 2018.
    7. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 7 October 2018.
    8. ↑ "LCDB Data for (523671)". Asteroid Lightcurve Database (LCDB). Retrieved 7 October 2018.
    9. ↑ "Asteroid (523671) 2013 FZ27". Small Bodies Data Ferret. Retrieved 7 October 2018.
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