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Discovery
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| Discovered by | Auguste Charlois |
| Discovery date | September 9, 1890 |
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Designations
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| Minor planet category |
Main Belt |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 541.807 Gm (3.622 AU) |
| Perihelion | 404.118 Gm (2.701 AU) |
| Semi-major axis | 472.962 Gm (3.162 AU) |
| Eccentricity | 0.146 |
| Orbital period | 2053.25 d (5.62 a) |
| Average orbital speed | 16.75 km/s |
| Mean anomaly | 99.265° |
| Inclination | 7.55° |
| Longitude of ascending node | 332.241° |
| Argument of perihelion | 355.652° |
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Physical characteristics
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| Dimensions | 40.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Albedo | unknown |
| Temperature | unknown |
| Spectral type | unknown |
| Absolute magnitude (H) | 9.5 |
297 Caecilia is a typical Main belt asteroid.
It was discovered by Auguste Charlois on September 9, 1890 in Nice.
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