(2058) Roka Main-belt Asteroid
Discovered on 22 January 1938 by G. Kulin at Konkoly.
Named in memory of Gedeon Roka, a well-known popularizer of astronomy in Hungary for three decades.Naming citation (MPC 5183), IAU / Minor Planet Center, via NASA/JPL
Where Roka is today
Seen from above the solar system on 2026-10-14: Roka is 3.37 au from the Sun and 4.09 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2058 |
| Provisional designation | 1938 BH |
| Orbit class | Main-belt Asteroid |
| Diameter | 24.3 km (#1,749 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.120 |
| Rotation period | 10.0 hours |
| Absolute magnitude (H) | 11.56 |
| Orbital period | 5.55 years |
| Semi-major axis | 3.13 au |
| Perihelion – aphelion | 2.69 – 3.58 au |
| Eccentricity | 0.143 |
| Inclination | 2.53° |
| Closest distance between its orbit and Earth's (MOID) | 1.67 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.