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Discovery and designation
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| Discovered by | Chernykh, N. |
| Discovery site | Nauchnyj |
| Discovery date | March 13, 1977 |
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Designations
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| MPC designation | 2646 |
| Alternate name(s) | 1977 EC1 |
| Epoch May 14, 2008 | |
| Ap | 3.3080726 |
| Peri | 2.7147516 |
| Eccentricity | 0.0985121 |
| Orbital period | 1908.7705249 |
| Mean anomaly | 130.62629 |
| Inclination | 9.68109 |
| Longitude of ascending node | 352.51637 |
| Argument of peri | 40.28721 |
| Geometric albedo | 0.0808 |
| Absolute magnitude (H) | 11.60 |
2646 Abetti (1977 EC1) is a main belt asteroid discovered on March 13, 1977 by Chernykh, N. at Nauchnyj.
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