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Discovery
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| Discovered by | Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels |
| Discovery site | Palomar Observatory |
| Discovery date | September 24, 1960 |
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Designations
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| MPC designation | 8434 |
| Named after | Tundra Swan |
| Alternate name(s) | 6571 P-L |
| Epoch May 14, 2008 | |
| Ap | 3.7114582 |
| Peri | 2.2317412 |
| Eccentricity | 0.2489765 |
| Orbital period | 1871.0435226 |
| Mean anomaly | 36.83636 |
| Inclination | 3.12920 |
| Longitude of ascending node | 118.22930 |
| Argument of peri | 337.13620 |
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Physical characteristics
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| Absolute magnitude (H) | 13.6 |
8434 Columbianus (6571 P-L) is a main-belt asteroid discovered on September 24, 1960 by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory.
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