(6458) Nouda Main-belt Asteroid
Discovered on 2 October 1992 by T. Seki at Geisei.
Named in memory of Tadasuke Nouda (1901-1989), Japanese astronomer. A pioneer in the field of ancient Chinese astronomy, he made important contributions to the study of early luni-solar calendars. He was a professor at the Osaka University of Education and Kyoto Sangyo University. He served as president of the Japan Calendar Association (1959-1989) and of the Oriental Astronomical Association (1965-1989). Name proposed by the discoverer following a suggestion by I. Hasegawa and T. Sato. Citation by I. Hasegawa.Naming citation (19981005/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Nouda is today
Seen from above the solar system on 2026-10-14: Nouda is 2.89 au from the Sun and 3.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6458 |
| Provisional designation | 1992 TD1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.50 km (#7,107 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.181 |
| Rotation period | 4.20 hours |
| Absolute magnitude (H) | 13.05 |
| Orbital period | 4.08 years |
| Semi-major axis | 2.55 au |
| Perihelion – aphelion | 2.18 – 2.93 au |
| Eccentricity | 0.148 |
| Inclination | 14.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.18 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.