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2020 FA31 is a distant trans-Neptunian object that was discovered 97.2 AU (14.54 billion km) from the Sun by Scott Sheppard, David Tholen, and Chad Trujillo on 24 March 2020.[1] Announced on 14 February 2021, it is one of the most distant observable known objects in the Solar System.[4]

2020 FA31
Orbit of 2020 FA31
Discovery[1][2]
Discovered by
Discovery siteMauna Kea Obs.
Discovery date24 March 2020
(first imaged)
Designations
MPC designation
2020 FA31
Minor planet category
Orbital characteristics[4]
Epoch 9 June 2020 (JD 2459009.5)
Uncertainty parameter 9
Observation arc0.82 yr (301 days)
Aphelion102.447±47.846 AU
Perihelion39.457±9.608 AU
Semi-major axis
70.952±33.137 AU
Eccentricity0.44389±0.39513
Orbital period (sidereal)
597.66±418.70 yr
Mean anomaly
132.132°±320.990°
Mean motion
0° 0m 5.937s / day
Inclination19.554°±0.030°
Longitude of ascending node
135.974°±0.152°
Argument of perihelion
260.344°±137.100°
Physical characteristics
Apparent magnitude
25.0[1]
Absolute magnitude (H)

    See also



    References


    1. "MPEC 2021-C289 : 2020 FA31". Minor Planet Electronic Circular. Minor Planet Center. 14 February 2021. Retrieved 15 February 2021.
    2. "2020 FA31". Minor Planet Center. International Astronomical Union. Retrieved 15 February 2021.
    3. "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 14 February 2021.
    4. "JPL Small-Body Database Browser: (2020 FA31)" (2021-01-19 last obs.). Jet Propulsion Laboratory. Retrieved 15 February 2021.





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