(397) Vienna Main-belt Asteroid
Discovered on 19 December 1894 by A. Charlois at Nice.
👶 Vienna as a baby name🐶 Vienna as a dog name
Where Vienna is today
Seen from above the solar system on 2026-10-14: Vienna is 2.04 au from the Sun and 1.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 397 |
| Provisional designation | A894 YA |
| Orbit class | Main-belt Asteroid |
| Diameter | 49.0 km (#770 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.139 |
| Rotation period | 15.5 hours |
| Spectral type | S |
| Absolute magnitude (H) | 9.35 |
| Orbital period | 4.28 years |
| Semi-major axis | 2.64 au |
| Perihelion – aphelion | 1.98 – 3.29 au |
| Eccentricity | 0.247 |
| Inclination | 12.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.00 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
← (396) Aeolia · (398) Admete →