(6245) Ikufumi Main-belt Asteroid
Discovered on 27 September 1990 by T. Urata at Oohira.
Named in honor of Ikufumi Makino (b. 1944), a telecommunications systems engineer and active amateur astronomer. His extensive knowledge of computer technologies has enabled him to contribute to astronomical magazines many articles about systems for making observations. He has played an important role in introducing and spreading the data-reduction tool Astrometrica in Japan. He is a collaborating member of the Nihondaira Observatory.Naming citation (19980610/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ikufumi is today
Seen from above the solar system on 2026-10-14: Ikufumi is 2.62 au from the Sun and 3.23 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6245 |
| Provisional designation | 1990 SO4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.11 km (#6,462 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.129 |
| Rotation period | 2.92 hours |
| Absolute magnitude (H) | 13.35 |
| Orbital period | 3.49 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 1.89 – 2.71 au |
| Eccentricity | 0.178 |
| Inclination | 8.01° |
| Closest distance between its orbit and Earth's (MOID) | 0.898 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.