(3557) Sokolsky Outer Main-belt Asteroid
Discovered on 19 August 1977 by N. S. Chernykh at Nauchnyj.
Where Sokolsky is today
Seen from above the solar system on 2026-10-14: Sokolsky is 4.02 au from the Sun and 3.18 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3557 |
| Provisional designation | 1977 QE1 |
| Orbit class | Outer Main-belt Asteroid |
| Rotation period | 6.72 hours |
| Absolute magnitude (H) | 11.01 |
| Orbital period | 8.00 years |
| Semi-major axis | 4.00 au |
| Perihelion – aphelion | 3.31 – 4.69 au |
| Eccentricity | 0.172 |
| Inclination | 6.05° |
| Closest distance between its orbit and Earth's (MOID) | 2.30 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 August 1977
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- (2254) Requiem
- (2295) Matusovskij
- (2389) Dibaj
- (2564) Kayala
- (2793) Valdaj
- (3084) Kondratyuk
- (3738) Ots
- (6684) Volodshevchenko
- (7628) Evgenifedorov
- (7629) Foros
- (8450) Egorov