(1536) Pielinen Main-belt Asteroid
Discovered on 18 September 1939 by Y. Vaisala at Turku.
Where Pielinen is today
Seen from above the solar system on 2026-10-14: Pielinen is 2.57 au from the Sun and 3.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1536 |
| Provisional designation | 1939 SE |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.97 km (#6,606 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.253 |
| Rotation period | 66.2 hours |
| Absolute magnitude (H) | 12.82 |
| Orbital period | 3.27 years |
| Semi-major axis | 2.20 au |
| Perihelion – aphelion | 1.77 – 2.64 au |
| Eccentricity | 0.196 |
| Inclination | 1.54° |
| Closest distance between its orbit and Earth's (MOID) | 0.769 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.