(5761) Andreivanov Main-belt Asteroid
Discovered on 2 March 1981 by S. J. Bus at Siding Spring.
Andrei V. Ivanov (b. 1937), a cosmochemist at the Vernadsky Institute of Geochemistry, was one of the principal investigators to study lunar samples returned by the Luna missions. He is currently working to unravel the origin of primitive materials in the Kaidun meteorite.Naming citation (20020624/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Andreivanov is today
Seen from above the solar system on 2026-10-14: Andreivanov is 2.76 au from the Sun and 3.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5761 |
| Provisional designation | 1981 ED21 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 11.7 hours |
| Absolute magnitude (H) | 14.03 |
| Orbital period | 4.52 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 1.76 – 3.71 au |
| Eccentricity | 0.357 |
| Inclination | 9.24° |
| Closest distance between its orbit and Earth's (MOID) | 0.802 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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