(230631) Justino Main-belt Asteroid
Discovered on 18 June 2003 by A. Sota at Sierra Nevada.
Justino Sota Martinez (1931–2017) was the father of the discoverer. He was a Catholic priest in Atauta between 1954 and 1964. Then he got a bachelor's degree in literature, and became a secondary school teacher in Villacañas and Tres Cantos. With his wife Carmen Ballano, he had two children (Fernando and Alfredo).Naming citation (WGSBN Bull. 4, #13, 5), IAU / Minor Planet Center, via NASA/JPL
Where Justino is today
Seen from above the solar system on 2026-10-14: Justino is 2.71 au from the Sun and 2.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 230631 |
| Provisional designation | 2003 MB |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.22 |
| Orbital period | 4.30 years |
| Semi-major axis | 2.64 au |
| Perihelion – aphelion | 2.25 – 3.03 au |
| Eccentricity | 0.148 |
| Inclination | 5.77° |
| Closest distance between its orbit and Earth's (MOID) | 1.24 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.