(100133) Demosthenes Outer Main-belt Asteroid
Discovered on 15 September 1993 by E. W. Elst at La Silla.
Demosthenes (384-322 BC), a famous orator of ancient Athens was considered by Cicero as the greatest among all orators. Known from his Philippiques, he strove to restore Athens' supremacy and freedom. He played a leading role in the uprising of the city against Alexander the Great, but he failed and took his own life.Naming citation (MPC batch dated 2014-07-12), IAU / Minor Planet Center, via NASA/JPL
Where Demosthenes is today
Seen from above the solar system on 2026-10-14: Demosthenes is 4.49 au from the Sun and 4.04 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 100133 |
| Provisional designation | 1993 RG14 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 9.40 km (#5,477 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0460 |
| Absolute magnitude (H) | 14.38 |
| Orbital period | 7.83 years |
| Semi-major axis | 3.94 au |
| Perihelion – aphelion | 3.13 – 4.76 au |
| Eccentricity | 0.206 |
| Inclination | 2.56° |
| Closest distance between its orbit and Earth's (MOID) | 2.11 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 15 September 1993
- (8039) Grandprism
- (9381) Lyon
- (10356) Rudolfsteiner
- (10557) Rowland
- (10558) Karlstad
- (11083) Caracas
- (11572) Schindler
- (12356) Carlscheele
- (13113) Williamyeats
- (14911) Fukamatsu
- (15786) Hoshioka
- (17544) Kojiroishikawa