(23879) Demura Main-belt Asteroid
Discovered on 17 September 1998 by LONEOS at Anderson Mesa.
Japanese lunar and planetary scientist Hirohide Demura (b. 1970) works on Japanese deep-space missions, among them Nozomi (Planet-B) to Mars, Hayabusa (MUSES-C) to asteroid Itokawa, and Kaguya (SELENE) to the Moon.Naming citation (20120506/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Demura is today
Seen from above the solar system on 2026-10-14: Demura is 2.87 au from the Sun and 2.12 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 23879 |
| Provisional designation | 1998 SX4 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 11.0 hours |
| Absolute magnitude (H) | 13.68 |
| Orbital period | 5.70 years |
| Semi-major axis | 3.19 au |
| Perihelion – aphelion | 2.85 – 3.53 au |
| Eccentricity | 0.106 |
| Inclination | 11.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.85 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 17 September 1998
- (10938) Lorenzalevy
- (11377) Nye
- (11378) Dauria
- (12909) Jaclifford
- (12910) Deliso
- (12911) Goodhue
- (12912) Streator
- (13326) Ferri
- (13327) Reitsema
- (13328) Guetter
- (13332) Benkhoff
- (13333) Carsenty