(6716) Jacobsen Main-belt Asteroid
Discovered on 14 September 1990 by H. E. Holt at Palomar.
Named for Stein Bjornar Jacobsen (b. 1950), a Norwegian-American professor of Geochemistry in the Department of Earth and Planetary Sciences at Harvard University. He specializes in the study of isotope geochemistry and cosmochemistry, notably regarding the formation and early differentiation of the terrestrial planets, with focus on Earth's core/mantle.Naming citation (WGSBN Bull. 5, #27, 6), IAU / Minor Planet Center, via NASA/JPL
Where Jacobsen is today
Seen from above the solar system on 2026-10-14: Jacobsen is 2.94 au from the Sun and 3.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6716 |
| Provisional designation | 1990 RO1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 16.0 km (#2,897 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0520 |
| Rotation period | 28.2 hours |
| Spectral type | C |
| Absolute magnitude (H) | 13.29 |
| Orbital period | 4.66 years |
| Semi-major axis | 2.79 au |
| Perihelion – aphelion | 2.63 – 2.95 au |
| Eccentricity | 0.0582 |
| Inclination | 4.65° |
| Closest distance between its orbit and Earth's (MOID) | 1.64 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 14 September 1990
- (5439) Couturier
- (6133) Royaldutchastro
- (6135) Billowen
- (6312) Robheinlein
- (6313) Tsurutani
- (10521) Jeremyhansen