(5172) Yoshiyuki Main-belt Asteroid
Discovered on 28 October 1987 by Ueda, S., Kaneda, H. at Kushiro.
Yoshiyuki Endo (b. 1953) is the landowner of the Kushiro Observatory.Naming citation (20010109/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Yoshiyuki is today
Seen from above the solar system on 2026-10-14: Yoshiyuki is 2.04 au from the Sun and 1.62 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5172 |
| Provisional designation | 1987 UX1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.46 km (#14,083 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.589 |
| Absolute magnitude (H) | 14.15 |
| Orbital period | 3.52 years |
| Semi-major axis | 2.31 au |
| Perihelion – aphelion | 1.92 – 2.70 au |
| Eccentricity | 0.169 |
| Inclination | 4.81° |
| Closest distance between its orbit and Earth's (MOID) | 0.929 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.