(48495) Ryugado Main-belt Asteroid
Discovered on 16 January 1993 by T. Seki at Geisei.
Ryugado, in Kochi prefecture, is one of the Three Greatest Limestone Caves of Japan and has been designated a National Historic Site, as well as a National Natural Treasure. Earthenware from the Yayoi Period (300 B.C.-A.D. 300), evidence of cave dwelling, was uncovered in this 4-km-long cave.Naming citation (20070730/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ryugado is today
Seen from above the solar system on 2026-10-14: Ryugado is 2.56 au from the Sun and 1.56 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 48495 |
| Provisional designation | 1993 BB |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.92 km (#17,123 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.400 |
| Absolute magnitude (H) | 15.5 |
| Orbital period | 3.48 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 1.98 – 2.62 au |
| Eccentricity | 0.139 |
| Inclination | 5.80° |
| Closest distance between its orbit and Earth's (MOID) | 0.988 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.