(20485) Leaferellec Main-belt Asteroid
Discovered on 12 July 1999 by LINEAR at Socorro.
Léa Ferellec (b. 1997) is a French astronomer who gained a Ph.D. from the University of Edinburgh in 2025. She works on understanding the composition of comets and interstellar objects using optical spectroscopy.Naming citation (WGSBN Bull. 6, #11, 23), IAU / Minor Planet Center, via NASA/JPL
Where Leaferellec is today
Seen from above the solar system on 2026-10-14: Leaferellec is 2.28 au from the Sun and 1.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20485 |
| Provisional designation | 1999 NJ54 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.34 km (#11,974 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.259 |
| Rotation period | 130 hours |
| Absolute magnitude (H) | 14.24 |
| Orbital period | 4.35 years |
| Semi-major axis | 2.66 au |
| Perihelion – aphelion | 2.20 – 3.12 au |
| Eccentricity | 0.172 |
| Inclination | 13.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.21 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Lea
All asteroids named after someone called Lea
Also discovered on 12 July 1999
- (12571) Occhiogrosso
- (20486) Lemos
- (21625) Seira
- (21626) Matthewhall
- (21646) Joshuaturner
- (21647) Carlturner
- (21648) Gravanschaik