(423) Diotima Main-belt Asteroid
Discovered on 7 December 1896 by A. Charlois at Nice.
Where Diotima is today
Seen from above the solar system on 2026-10-14: Diotima is 3.16 au from the Sun and 3.29 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 423 |
| Provisional designation | A896 XA |
| Orbit class | Main-belt Asteroid |
| Diameter | 176 km (#47 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0670 |
| Rotation period | 4.78 hours |
| Spectral type | C |
| Absolute magnitude (H) | 7.39 |
| Orbital period | 5.37 years |
| Semi-major axis | 3.07 au |
| Perihelion – aphelion | 2.97 – 3.17 au |
| Eccentricity | 0.0333 |
| Inclination | 11.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.95 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. Charlois
- (267) Tirza
- (272) Antonia
- (277) Elvira
- (282) Clorinde
- (283) Emma
- (284) Amalia
- (285) Regina
- (289) Nenetta
- (293) Brasilia
- (294) Felicia
- (296) Phaetusa
- (297) Caecilia
← (422) Berolina · (424) Gratia →