(31179) Gongju Main-belt Asteroid
Discovered on 21 December 1997 by N. Sato at Chichibu.
Gongju is a city located in Chungcheongnam-do Province of Korea, with a population of approximately 120 000. It was the capital of Baekje dynasty in the 5th century AD and the seat of the provincial government of Chungcheongnam-do Province until 1932.Naming citation (MPC batch dated 2014-05-14), IAU / Minor Planet Center, via NASA/JPL
Where Gongju is today
Seen from above the solar system on 2026-10-14: Gongju is 2.46 au from the Sun and 3.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31179 |
| Provisional designation | 1997 YR2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.67 km (#11,284 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.353 |
| Rotation period | 4.83 hours |
| Absolute magnitude (H) | 13.94 |
| Orbital period | 3.82 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 1.97 – 2.91 au |
| Eccentricity | 0.193 |
| Inclination | 3.45° |
| Closest distance between its orbit and Earth's (MOID) | 0.962 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.