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Discovery and designation
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| Discovered by | E. W. Elst |
| Discovery site | European Southern Observatory |
| Discovery date | September 20, 1998 |
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Designations
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| MPC designation | 13770 |
| Named after | Philibert Commerçon |
| Alternate name(s) | 1998 ST145 |
| Epoch May 14, 2008 | |
| Ap | 3.3254551 |
| Peri | 2.7776025 |
| Eccentricity | 0.0897669 |
| Orbital period | 1947.0389189 |
| Mean anomaly | 290.10509 |
| Inclination | 2.99619 |
| Longitude of ascending node | 145.89327 |
| Argument of peri | 238.92340 |
| Absolute magnitude (H) | 13.1 |
13770 Commerson (1998 ST145) is a main-belt asteroid discovered on September 20, 1998 by E. W. Elst at the European Southern Observatory.
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