498 Tokio
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498 Tokio
| Name | |
|---|---|
| Name | Tokio |
| Designation | 1902 KU |
| Discovery | |
| Discoverer | Auguste Charlois |
| Discovery date | December 2, 1902 |
| Discovery site | Nice |
| Orbital elements | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Eccentricity (e) | 0.225 |
| Semimajor axis (a) | 2.650 AU |
| Perihelion (q) | 2.054 AU |
| Aphelion (Q) | 3.246 AU |
| Orbital period (P) | 4.314 a |
| Inclination (i) | 9.504° |
| Longitude of the ascending node (Ω) | 97.503° |
| Argument of Perihelion (ω) | 241.277° |
| Mean anomaly (M) | 344.551° |
498 Tokio is a minor planet orbiting the Sun.
Tokio was discovered by Shin Hirayama in Tokyo on March 6, 1900. However, he was not able to determine its orbit. After it was rediscovered by Auguste Charlois on December 2, 1902, Charlois gave Hirayama the honor of naming it. Hirayama chose to name it Tokio after the city by the same name (Tokio is an older romanization).
The size of Tokio is 85 km x 60 km (determined by occultation in Japan on February 18, 2004).
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