(32731) Annaivanovna Main-belt Asteroid
Discovered on 25 July 1968 by Plyugin, G. A., Belyaev, Yu. A. at Cerro El Roble.
Anna Ivanovna Plyugina (1929-2009) worked for more than 30 years as a specialist in fundamental astrometry at the Pulkovo Observatory. In 1968 she observed and organized observations for the Pulkovo expedition to Chile. The name was suggested by the first discoverer, who was her husband.Naming citation (20091202/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Annaivanovna is today
Seen from above the solar system on 2026-10-14: Annaivanovna is 2.32 au from the Sun and 3.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 32731 |
| Provisional designation | 1968 OD1 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 53.1 hours |
| Absolute magnitude (H) | 15.36 |
| Orbital period | 3.27 years |
| Semi-major axis | 2.20 au |
| Perihelion – aphelion | 1.88 – 2.53 au |
| Eccentricity | 0.148 |
| Inclination | 5.68° |
| Closest distance between its orbit and Earth's (MOID) | 0.878 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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