2020 FY₃₀ is a distant trans-Neptunian object that was discovered 100 AU (15 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 FY₃₀

Orbit of 2020 FY30
Discovery [1][2]
Discovered by	Scott S. Sheppard David J. Tholen Chad Trujillo
Discovery site	Mauna Kea Obs.
Discovery date	24 March 2020 (first imaged)
Designations
MPC designation	2020 FY30
Minor planet category	SDO[3] TNO[4] distant[2]
Orbital characteristics[4]
Epoch 27 March 2020 (JD 2458996.5)
Uncertainty parameter 9
Observation arc	0.82 yr (300 days)
Aphelion	107.687±39.992 AU
Perihelion	35.577±7.749 AU
Semi-major axis	71.632±26.602 AU
Eccentricity	0.50333±0.29262
Orbital period (sidereal)	606.28±337.70 yr
Mean anomaly	238.823°±190.640°
Mean motion	0° 0m 5.853s / day
Inclination	13.858°±0.129°
Longitude of ascending node	67.258°±0.375°
Argument of perihelion	301.441°±71.686°
Neptune MOID	≈ 7.4 AU[2]
Physical characteristics
Mean diameter	517 km (estimate)
Apparent magnitude	24.3[1]
Absolute magnitude (H)	4.666±0.160[4] 4.71[2]

See also

• List of Solar System objects most distant from the Sun

References

External links

• 2020 FY30 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
• MPC