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Discovery and designation
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| Discovered by | P. G. Comba |
| Discovery site | Prescott |
| Discovery date | July 9, 1997 |
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Designations
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| MPC designation | 27947 |
| Named after | Émile Léonard Mathieu |
| Alternate name(s) | 1997 NH3 |
| Epoch May 14, 2008 | |
| Ap | 2.5583971 |
| Peri | 2.2977031 |
| Eccentricity | 0.0536838 |
| Orbital period | 1381.9263155 |
| Mean anomaly | 285.49591 |
| Inclination | 22.02903 |
| Longitude of ascending node | 110.28533 |
| Argument of peri | 211.31889 |
| Absolute magnitude (H) | 15.0 |
27947 Emilemathieu (1997 NH3) is a main-belt asteroid discovered on July 9, 1997 by P. G. Comba at Prescott.
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