(1098) Hakone Main-belt Asteroid
Discovered on 5 September 1928 by O. Oikawa at Tokyo.
Where Hakone is today
Seen from above the solar system on 2026-10-14: Hakone is 2.45 au from the Sun and 2.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1098 |
| Provisional designation | 1928 RJ |
| Orbit class | Main-belt Asteroid |
| Diameter | 26.7 km (#1,564 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.206 |
| Rotation period | 7.14 hours |
| Spectral type | Xe |
| Absolute magnitude (H) | 10.54 |
| Orbital period | 4.41 years |
| Semi-major axis | 2.69 au |
| Perihelion – aphelion | 2.38 – 3.00 au |
| Eccentricity | 0.116 |
| Inclination | 13.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.43 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 5 September 1928
More named asteroids discovered by O. Oikawa
← (1097) Vicia · (1099) Figneria →