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Discovery
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| Discovered by | M. Wolf, A. Schwassmann |
| Discovery date | October 27, 1899 |
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Designations
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| Alternate name(s) | 1899 ES |
| Minor planet category |
Main belt |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 464.125 Gm (3.102 AU) |
| Perihelion | 430.202 Gm (2.876 AU) |
| Semi-major axis | 447.164 Gm (2.989 AU) |
| Eccentricity | 0.038 |
| Orbital period | 1887.565 d (5.17 a) |
| Average orbital speed | 17.23 km/s |
| Mean anomaly | 141.289° |
| Inclination | 4.795° |
| Longitude of ascending node | 72.079° |
| Argument of perihelion | 317.797° |
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Physical characteristics
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| Dimensions | 80.0 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) | 8.99 |
447 Valentine is a large Main belt asteroid.
It was discovered by Max Wolf and A. Schwassmann on October 27, 1899 in Heidelberg.
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