(3759) Piironen Main-belt Asteroid
Discovered on 8 January 1984 by E. Bowell at Anderson Mesa.
Where Piironen is today
Seen from above the solar system on 2026-10-14: Piironen is 3.02 au from the Sun and 3.15 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3759 |
| Provisional designation | 1984 AP |
| Orbit class | Main-belt Asteroid |
| Diameter | 32.1 km (#1,272 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0297 |
| Rotation period | 8.21 hours |
| Spectral type | X |
| Absolute magnitude (H) | 12.04 |
| Orbital period | 4.49 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 2.41 – 3.04 au |
| Eccentricity | 0.116 |
| Inclination | 13.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.42 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.