(30) Urania Main-belt Asteroid
Discovered on 22 July 1854 by J. R. Hind at London.
Where Urania is today
Seen from above the solar system on 2026-10-14: Urania is 2.19 au from the Sun and 2.15 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 30 |
| Provisional designation | A854 OA |
| Orbit class | Main-belt Asteroid |
| Diameter | 92.8 km (#280 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.192 |
| Rotation period | 13.7 hours |
| Spectral type | S |
| Absolute magnitude (H) | 7.57 |
| Orbital period | 3.64 years |
| Semi-major axis | 2.37 au |
| Perihelion – aphelion | 2.07 – 2.66 au |
| Eccentricity | 0.127 |
| Inclination | 2.09° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.