(13787) Nagaishi Main-belt Asteroid
Discovered on 26 October 1998 by T. Okuni at Nanyo.
Nagaishi city, situated in the southern part of Yamagata prefecture, has a population of 30~000 and is famous for its White azalea Park and Iris Park.Naming citation (20100330/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Nagaishi is today
Seen from above the solar system on 2026-10-14: Nagaishi is 3.07 au from the Sun and 2.17 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13787 |
| Provisional designation | 1998 UN23 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.4 |
| Orbital period | 5.72 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 2.77 – 3.63 au |
| Eccentricity | 0.135 |
| Inclination | 2.13° |
| Closest distance between its orbit and Earth's (MOID) | 1.78 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.