(904) Rockefellia Main-belt Asteroid
Discovered on 29 October 1918 by M. F. Wolf at Heidelberg.
Where Rockefellia is today
Seen from above the solar system on 2026-10-14: Rockefellia is 3.07 au from the Sun and 2.39 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 904 |
| Provisional designation | A918 UC |
| Orbit class | Main-belt Asteroid |
| Diameter | 49.1 km (#767 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0550 |
| Rotation period | 6.82 hours |
| Absolute magnitude (H) | 10.45 |
| Orbital period | 5.18 years |
| Semi-major axis | 2.99 au |
| Perihelion – aphelion | 2.74 – 3.25 au |
| Eccentricity | 0.0850 |
| Inclination | 15.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.80 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.