(31412) Andersonribeiro Main-belt Asteroid
Discovered on 13 January 1999 by LONEOS at Anderson Mesa.
Anderson de Oliveira Ribeiro (b. 1979) is a Brazilian astronomer and professor at the Centro Universitário Geraldo Di Biase in Rio de Janeiro, Brazil. He is known for his results on the dynamics of the Atira asteroids and the taxonomy of Trojan asteroids from SDSS colors.Naming citation (WGSBN Bull. 3, #9, 19), IAU / Minor Planet Center, via NASA/JPL
Where Andersonribeiro is today
Seen from above the solar system on 2026-10-14: Andersonribeiro is 1.75 au from the Sun and 0.814 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31412 |
| Provisional designation | 1999 AP20 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.62 km (#16,010 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.234 |
| Absolute magnitude (H) | 15.59 |
| Orbital period | 3.16 years |
| Semi-major axis | 2.15 au |
| Perihelion – aphelion | 1.74 – 2.57 au |
| Eccentricity | 0.191 |
| Inclination | 3.83° |
| Closest distance between its orbit and Earth's (MOID) | 0.747 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.