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Discovery and designation
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| Discovered by | N. S. Chernykh |
| Discovery site | Nauchnyj |
| Discovery date | September 11, 1977 |
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Designations
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| MPC designation | 4619 |
| Alternate name(s) | 1977 RB7 |
| Epoch May 14, 2008 | |
| Ap | 2.7677681 |
| Peri | 2.6091939 |
| Eccentricity | 0.0294914 |
| Orbital period | 1610.1223742 |
| Mean anomaly | 251.89347 |
| Inclination | 1.81905 |
| Longitude of ascending node | 266.92729 |
| Argument of peri | 199.88305 |
| Absolute magnitude (H) | 12.6 |
4619 Polyakhova (1977 RB7) is a main-belt asteroid discovered on September 11, 1977 by N. S. Chernykh at Nauchnyj.
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