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Discovery
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| Discovered by | Y. Vaisala |
| Discovery site | Turku |
| Discovery date | March 17, 1939 |
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Designations
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| MPC designation | 1757 |
| Named after | Porvoo |
| Alternate name(s) | 1939 FC |
| Epoch May 14, 2008 | |
| Ap | 2.6466257 |
| Peri | 2.0574275 |
| Eccentricity | 0.1252533 |
| Orbital period | 1317.5338095 |
| Mean anomaly | 53.36824 |
| Inclination | 3.97784 |
| Longitude of ascending node | 39.56748 |
| Argument of peri | 149.65855 |
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Physical characteristics
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| Absolute magnitude (H) | 13.36 |
1757 Porvoo (1939 FC) is a main-belt asteroid discovered on March 17, 1939 by Y. Vaisala at Turku.
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