(3280) Gretry Main-belt Asteroid
Discovered on 17 September 1933 by F. Rigaux at Uccle.
Where Gretry is today
Seen from above the solar system on 2026-10-14: Gretry is 3.04 au from the Sun and 3.67 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3280 |
| Provisional designation | 1933 SJ |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.83 km (#5,889 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.226 |
| Rotation period | 10.6 hours |
| Absolute magnitude (H) | 12.55 |
| Orbital period | 4.15 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 2.13 – 3.04 au |
| Eccentricity | 0.177 |
| Inclination | 2.23° |
| Closest distance between its orbit and Earth's (MOID) | 1.11 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.