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2020 BE102 is a trans-Neptunian object in the scattered disc, around 350 kilometres (220 miles) in diameter. It was discovered on 24 January 2020, by American astronomers Scott Sheppard, David Tholen, and Chad Trujillo using the 8.2-meter Subaru Telescope of the Mauna Kea Observatories in Hawaii, and announced on 31 May 2021.[1] It was 111.2 astronomical units from the Sun when it was discovered, making it the third-farthest known Solar System object from the Sun as of May 2022, after 2018 VG18 (124 AU) and 2018 AG37 (~132 AU).[1][6]

2020 BE102
Discovery[1]
Discovered byS. S. Sheppard
C. Trujillo
Discovery siteSubaru
Discovery date24 January 2020
Designations
MPC designation
2020 BE102
Minor planet category
TNO[2] · SDO[3] · distant[4]
Orbital characteristics[4]
Epoch 11 January 2021 (JD 2459225.5)
Uncertainty parameter 9
Observation arc2.21 yr (806 days)
Aphelion116.935 AU
Perihelion32.863 AU
Semi-major axis
74.899 AU
Eccentricity0.5612
Orbital period (sidereal)
648 yr
Mean anomaly
227.181°
Mean motion
0° 0m 5.474s / day
Inclination5.411
Longitude of ascending node
38.841
Argument of perihelion
268.418
Physical characteristics
Mean diameter
400–300 km (est. 0.1–0.2)[5]
Apparent magnitude
25.7[1]
Absolute magnitude (H)
5.12±0.09[2] · 5.16[4]

    References


    1. "MPEC 2022-K172 : 2020 BE102". Minor Planet Electronic Circular. Minor Planet Center. 31 May 2022. Retrieved 31 May 2022.
    2. "JPL Small-Body Database Browser: (2020 BE102)" (2022-04-09 last obs.). Jet Propulsion Laboratory. Retrieved 31 May 2022.
    3. "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. International Astronomical Union. Retrieved 31 May 2022.
    4. "2020 BE102". Minor Planet Center. International Astronomical Union. Retrieved 31 May 2022.
    5. "Asteroid Size Estimator". Center for Near Earth Object Studies. Jet Propulsion Laboratory. Retrieved 31 May 2022.
    6. "JPL Horizons On-Line Ephemeris for 2020 BE102". JPL Horizons On-Line Ephemeris System. Jet Propulsion Laboratory. Retrieved 31 May 2022. Ephemeris Type: VECTORS, Target Body: Asteroid (2020 BE102), Coordinate Origin: Sun (body center) [500@10], Time Span: Start=2020-01-24, Table Settings: quantities code=2p


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