(26169) Ishikawakiyoshi Main-belt Asteroid
Discovered on 21 December 1995 by T. Kobayashi at Oizumi.
Akiyoshi Ishikawa (b. 1955), a Japanese amateur astronomer, is a key member of the group Ota Uchuno Kai. A devoted comet observer, he has had more than 1100 visual magnitude estimates published in the International Comet Quarterly since 1980. The name was suggested by A. Nakamura.Naming citation (20020921/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ishikawakiyoshi is today
Seen from above the solar system on 2026-10-14: Ishikawakiyoshi is 2.42 au from the Sun and 2.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 26169 |
| Provisional designation | 1995 YY |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.69 km (#15,865 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.423 |
| Absolute magnitude (H) | 14.74 |
| Orbital period | 3.42 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 2.12 – 2.42 au |
| Eccentricity | 0.0661 |
| Inclination | 5.71° |
| Closest distance between its orbit and Earth's (MOID) | 1.10 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.