(20731) Mothediniz Main-belt Asteroid
Discovered on 9 December 1999 by LONEOS at Anderson Mesa.
Thais Mothé-Diniz (b. 1974) is a planetary scientist who works at Rio de Janeiro National Observatory. Using spectroscopy, she studies the families and composition of minor planets.Naming citation (20080718/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Mothediniz is today
Seen from above the solar system on 2026-10-14: Mothediniz is 2.92 au from the Sun and 2.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20731 |
| Provisional designation | 1999 XH151 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.48 |
| Orbital period | 5.22 years |
| Semi-major axis | 3.01 au |
| Perihelion – aphelion | 2.77 – 3.25 au |
| Eccentricity | 0.0787 |
| Inclination | 10.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.79 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 9 December 1999
- (15523) Grenville
- (16135) Ivarsson
- (16150) Clinch
- (19731) Tochigi
- (20730) Jorgecarvano
- (22032) Mikekoop
- (25589) Danicamckellar