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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 | 8757 |
| Named after | Hen Harrier |
| Alternate name(s) | 6600 P-L |
| Epoch May 14, 2008 | |
| Ap | 2.3320647 |
| Peri | 2.0524147 |
| Eccentricity | 0.0637818 |
| Orbital period | 1185.5789730 |
| Mean anomaly | 38.33846 |
| Inclination | 1.95926 |
| Longitude of ascending node | 64.38914 |
| Argument of peri | 138.19292 |
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Physical characteristics
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| Absolute magnitude (H) | 14.9 |
8757 Cyaneus (6600 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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