(498) Tokio Main-belt Asteroid
Discovered on 2 December 1902 by A. Charlois at Nice.
👶 Tokio as a baby name🐶 Tokio as a dog name
Where Tokio is today
Seen from above the solar system on 2026-10-14: Tokio is 2.37 au from the Sun and 2.95 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 498 |
| Provisional designation | A902 XA |
| Orbit class | Main-belt Asteroid |
| Diameter | 81.8 km (#360 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0694 |
| Rotation period | 41.9 hours |
| Spectral type | M |
| Absolute magnitude (H) | 8.85 |
| Orbital period | 4.31 years |
| Semi-major axis | 2.65 au |
| Perihelion – aphelion | 2.06 – 3.24 au |
| Eccentricity | 0.224 |
| Inclination | 9.50° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. Charlois
- (267) Tirza
- (272) Antonia
- (277) Elvira
- (282) Clorinde
- (283) Emma
- (284) Amalia
- (285) Regina
- (289) Nenetta
- (293) Brasilia
- (294) Felicia
- (296) Phaetusa
- (297) Caecilia
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