(3274) Maillen Main-belt Asteroid
Discovered on 23 August 1981 by H. Debehogne at La Silla.
Where Maillen is today
Seen from above the solar system on 2026-10-14: Maillen is 3.17 au from the Sun and 2.25 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3274 |
| Provisional designation | 1981 QO2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.5 km (#3,240 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0760 |
| Rotation period | 11.4 hours |
| Absolute magnitude (H) | 12.87 |
| Orbital period | 5.57 years |
| Semi-major axis | 3.14 au |
| Perihelion – aphelion | 2.75 – 3.54 au |
| Eccentricity | 0.125 |
| Inclination | 1.24° |
| Closest distance between its orbit and Earth's (MOID) | 1.74 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.