(17508) Takumadan Main-belt Asteroid
Discovered on 3 May 1992 by T. Seki at Geisei.
Educated at the Massachusetts Institute of Technology, Takuma Dan (1858-1932) returned to Japan in 1881 and became a lecturer in astronomy at Tokyo Imperial University. He later directed the Japanese mining industry and became a financier.Naming citation (20010902/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Takumadan is today
Seen from above the solar system on 2026-10-14: Takumadan is 2.80 au from the Sun and 2.41 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 17508 |
| Provisional designation | 1992 JH |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.88 km (#7,794 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0470 |
| Absolute magnitude (H) | 14.93 |
| Orbital period | 3.62 years |
| Semi-major axis | 2.36 au |
| Perihelion – aphelion | 1.83 – 2.89 au |
| Eccentricity | 0.224 |
| Inclination | 3.30° |
| Closest distance between its orbit and Earth's (MOID) | 0.818 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.