(18644) Arashiyama Main-belt Asteroid
Discovered on 2 March 1998 by T. Seki at Geisei.
Arashiyama, situated west of Kyoto city, is the area that includes Arashiyama mountain and the shores of the Katsuragawa river, including the Togetsukyo bridge. It is known nationally for its cherry blossoms and colorful autumn leaves and is designated as a National Historic Site and Place of Scenic Beauty.Naming citation (MPC batch dated 2018-05-29), IAU / Minor Planet Center, via NASA/JPL
Where Arashiyama is today
Seen from above the solar system on 2026-10-14: Arashiyama is 2.47 au from the Sun and 1.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18644 |
| Provisional designation | 1998 EX14 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.80 km (#13,205 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.360 |
| Absolute magnitude (H) | 14.29 |
| Orbital period | 3.82 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 2.27 – 2.62 au |
| Eccentricity | 0.0709 |
| Inclination | 5.71° |
| Closest distance between its orbit and Earth's (MOID) | 1.27 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 March 1998
- (8952) ODAS
- (16912) Rhiannon
- (17764) Schatzman
- (18634) Champigneulles
- (18635) Frouard
- (18636) Villedepompey
- (18637) Liverdun
- (18638) Nouet
- (19395) Barrera
- (19398) Creedence
- (22519) Gerardklein
- (22521) ZZ Top