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Discovery and designation
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| Discovered by | Chernykh, N. |
| Discovery site | Nauchnyj |
| Discovery date | August 14, 1977 |
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Designations
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| MPC designation | 2477 |
| Alternate name(s) | 1977 PY1 |
| Epoch May 14, 2008 | |
| Ap | 2.9437831 |
| Peri | 2.1740267 |
| Eccentricity | 0.1504074 |
| Orbital period | 1495.1324095 |
| Mean anomaly | 213.41893 |
| Inclination | 6.08952 |
| Longitude of ascending node | 208.30778 |
| Argument of peri | 87.00634 |
| Absolute magnitude (H) | 12.4 |
2477 Biryukov (1977 PY1) is a Main-belt asteroid discovered on 14 August 1977 by Nikolai Chernykh at the Crimean Astrophysical Observatory, Ukraine.
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