(9109) Yukomotizuki Main-belt Asteroid
Discovered on 9 January 1997 by T. Kobayashi at Oizumi.
Yuko Motizuki (b. 1965) is an associate professor at Saitama University. Her speciality is the theoretical study of nucleosynthesis, supernovae and neutron stars. She is also leading a team to examine the effects of solar cycles and supernovae on Antarctic ice cores.Naming citation (20100130/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Yukomotizuki is today
Seen from above the solar system on 2026-10-14: Yukomotizuki is 2.54 au from the Sun and 3.31 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9109 |
| Provisional designation | 1997 AH7 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.66 |
| Orbital period | 3.55 years |
| Semi-major axis | 2.33 au |
| Perihelion – aphelion | 2.11 – 2.55 au |
| Eccentricity | 0.0940 |
| Inclination | 7.17° |
| Closest distance between its orbit and Earth's (MOID) | 1.13 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Yuko
All asteroids named after someone called Yuko
Also discovered on 9 January 1997
- (8736) Shigehisa
- (9108) Toruyusa
- (12028) Annekinney
- (12469) Katsuura
- (18550) Maoyisheng
- (29420) Ikuo
- (31087) Oirase
- (39741) Komm