(8397) Chiakitanaka Main-belt Asteroid
Discovered on 8 December 1993 by S. Otomo at Kiyosato.
Chiaki Tanaka (b. 1953) is an astronomical photographer and writer of books and articles in astronomical magazines. His name often appears in the list of judges for stellar photographic contests in magazines.Naming citation (WGSBN Bull. 2, #16, 4), IAU / Minor Planet Center, via NASA/JPL
Where Chiakitanaka is today
Seen from above the solar system on 2026-10-14: Chiakitanaka is 2.14 au from the Sun and 1.17 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8397 |
| Provisional designation | 1993 XO |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.44 km (#7,156 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.291 |
| Rotation period | 3.90 hours |
| Absolute magnitude (H) | 12.76 |
| Orbital period | 4.16 years |
| Semi-major axis | 2.59 au |
| Perihelion – aphelion | 2.13 – 3.04 au |
| Eccentricity | 0.175 |
| Inclination | 12.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.15 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 8 December 1993
More named asteroids discovered by S. Otomo
- (5488) Kiyosato
- (5561) Iguchi
- (5605) Kushida
- (5606) Muramatsu
- (5922) Shouichi
- (5973) Takimoto
- (6043) Aurochs
- (6336) Dodo
- (6410) Fujiwara
- (6729) Emiko
- (6790) Pingouin
- (6866) Kukai
← (8395) Rembaut · (8398) Rubbia →