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Discovery and designation
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| Discovered by | Lutz D. Schmadel and Freimut Börngen |
| Discovery site | Tautenburg |
| Discovery date | October 14, 1990 |
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Designations
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| MPC designation | 8661 |
| Named after | Pope Benedict XVI |
| Alternate name(s) | 1990 TA13 |
| Epoch May 14, 2008 | |
| Ap | 3.1254146 |
| Peri | 2.8822456 |
| Eccentricity | 0.0404765 |
| Orbital period | 1901.5662673 |
| Mean anomaly | 75.42951 |
| Inclination | 10.56373 |
| Longitude of ascending node | 38.42747 |
| Argument of peri | 80.48693 |
| Absolute magnitude (H) | 12.6 |
8661 Ratzinger (1990 TA13) is a main-belt asteroid discovered on October 14, 1990 by Lutz D. Schmadel and Freimut Börngen at Tautenburg. Named after Cardinal Joseph Ratzinger, now Pope Benedict XVI.
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