(4159) Freeman Main-belt Asteroid
Discovered on 5 April 1989 by E. F. Helin at Palomar.
Where Freeman is today
Seen from above the solar system on 2026-10-14: Freeman is 2.66 au from the Sun and 3.09 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4159 |
| Provisional designation | 1989 GK |
| Orbit class | Main-belt Asteroid |
| Diameter | 17.3 km (#2,611 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.282 |
| Rotation period | 4.40 hours |
| Absolute magnitude (H) | 11.21 |
| Orbital period | 4.07 years |
| Semi-major axis | 2.55 au |
| Perihelion – aphelion | 2.36 – 2.74 au |
| Eccentricity | 0.0743 |
| Inclination | 15.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.39 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 5 April 1989
- (4611) Vulkaneifel
- (5006) Teller
- (6552) Higginson
- (6553) Seehaus
- (6775) Giorgini
- (13028) Klaustschira
- (23457) Beiderbecke
- (118172) Vorgebirge