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Discovery and designation
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| Discovered by | L. G. Karachkina |
| Discovery site | Nauchnyj |
| Discovery date | August 18, 1986 |
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Designations
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| MPC designation | 4940 |
| Named after | Vasily Polenov |
| Alternate name(s) | 1986 QY4 |
| Epoch May 14, 2008 | |
| Ap | 3.6328573 |
| Peri | 2.5771291 |
| Eccentricity | 0.1700049 |
| Orbital period | 1998.4322299 |
| Mean anomaly | 320.38981 |
| Inclination | 2.28571 |
| Longitude of ascending node | 118.51901 |
| Argument of peri | 270.12466 |
| Absolute magnitude (H) | 11.8 |
4940 Polenov (1986 QY4) is a main-belt asteroid discovered on August 18, 1986 by L. G. Karachkina at Nauchnyj.
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