(20648) Ryukihyodo Main-belt Asteroid
Discovered on 10 October 1999 by LINEAR at Socorro.
Ryuki Hyodo (b. 1988) is a Japanese planetary scientist specializing in giant impacts simulation, the formation of small bodies and the origin of planetary rings in the Solar System. He has worked at the Tokyo Institute of Technology and the Japanese Space Agency (JAXA).Naming citation (WGSBN Bull. 6, #11, 32), IAU / Minor Planet Center, via NASA/JPL
Where Ryukihyodo is today
Seen from above the solar system on 2026-10-14: Ryukihyodo is 3.18 au from the Sun and 3.43 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20648 |
| Provisional designation | 1999 TF166 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.67 km (#5,296 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0430 |
| Absolute magnitude (H) | 14.02 |
| Orbital period | 5.69 years |
| Semi-major axis | 3.19 au |
| Perihelion – aphelion | 3.07 – 3.30 au |
| Eccentricity | 0.0356 |
| Inclination | 15.2° |
| Closest distance between its orbit and Earth's (MOID) | 2.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 10 October 1999
- (12932) Conedera
- (13408) Deadoklestic
- (16092) Anudeepgolla
- (17180) Rupertli
- (20623) Davidyoung
- (20649) Miklenov
- (20650) Saillenfest
- (21860) Joannaguy
- (22898) Falce
- (22936) Ricmccutchen
- (22937) Nataliavella
- (22938) Brilawrence