(3859) Borngen Main-belt Asteroid
Discovered on 4 March 1987 by E. Bowell at Anderson Mesa.
Where Borngen is today
Seen from above the solar system on 2026-10-14: Borngen is 2.77 au from the Sun and 3.35 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3859 |
| Provisional designation | 1987 EW |
| Orbit class | Main-belt Asteroid |
| Diameter | 21.4 km (#2,031 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0430 |
| Absolute magnitude (H) | 12.2 |
| Orbital period | 5.72 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 2.74 – 3.65 au |
| Eccentricity | 0.143 |
| Inclination | 2.89° |
| Closest distance between its orbit and Earth's (MOID) | 1.76 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.