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Discovery and designation
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| Discovered by | F. Börngen | |||||||||
| Discovery date | October 6, 1991 | |||||||||
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Designations
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| MPC designation | 9957 Raffaellosanti | |||||||||
| Named after | Raphael | |||||||||
| Alternate name(s) | 1991 TO13, 1987 QG7, 1994 RP | |||||||||
| Epoch October 27, 2007 | ||||||||||
| Ap | 2.5820107 AU | |||||||||
| Peri | 1.9911963 AU | |||||||||
| Semi-major axis | 2.2866035 AU | |||||||||
| Eccentricity | 0.1291904 | |||||||||
| Orbital period | 1262.9458085 d | |||||||||
| Mean anomaly | 307.21726° | |||||||||
| Inclination | 6.86876° | |||||||||
| Longitude of ascending node | 220.80610° | |||||||||
| Argument of peri | 106.13683° | |||||||||
| Dimensions | ~23.4 km[1] | |||||||||
| Geometric albedo | ~0.01 | |||||||||
| Surface temp. Kelvin Celsius |
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| Absolute magnitude (H) | 13.8 | |||||||||
9957 Raffaellosanti is a main belt asteroid. It orbits the Sun once every 3.46 years.[2]
Discovered on October 6, 1991 by F. Börngen, it was given the provisional designation "1991 TO13". It was later renamed "Raffaellosanti" after Raffaello Sanzio, a master of the Italian Renaissance.[3]
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