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Discovery and designation
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| Discovered by | E. F. Helin |
| Discovery site | Palomar |
| Discovery date | March 5, 1989 |
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Designations
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| MPC designation | 6856 |
| Alternate name(s) | 1989 EM |
| Epoch May 14, 2008 | |
| Ap | 2.7823230 |
| Peri | 1.9619654 |
| Eccentricity | 0.1729148 |
| Orbital period | 1334.4738142 |
| Mean anomaly | 46.97283 |
| Inclination | 1.32852 |
| Longitude of ascending node | 293.90811 |
| Argument of peri | 301.22638 |
| Absolute magnitude (H) | 13.6 |
6856 Bethemmons (1989 EM) is a main-belt asteroid discovered on March 5, 1989 by E. F. Helin at Palomar.
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