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Discovery and designation
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| Discovered by | C. S. Shoemaker |
| Discovery site | Palomar |
| Discovery date | January 31, 1989 |
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Designations
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| MPC designation | 5283 |
| Named after | Neoptolemus |
| Alternate name(s) | 1989 BW |
| Epoch May 14, 2008 | |
| Ap | 5.9824282 |
| Peri | 4.4191374 |
| Eccentricity | 0.1502938 |
| Orbital period | 4332.1299639 |
| Mean anomaly | 280.87129 |
| Inclination | 17.48391 |
| Longitude of ascending node | 71.17390 |
| Argument of peri | 355.16298 |
| Geometric albedo | 0.0807 |
| Absolute magnitude (H) | 9.30 |
5283 Pyrrhus (1989 BW) is a Jupiter Trojan discovered on January 31, 1989 by C. S. Shoemaker at Palomar.
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