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Discovery
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| Discovered by | E. F. Coddington |
| Discovery date | October 2, 1899 |
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Designations
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| Alternate name(s) | 1899 EX |
| Minor planet category |
Main belt |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 570.472 Gm (3.813 AU) |
| Perihelion | 388.401 Gm (2.596 AU) |
| Semi-major axis | 479.437 Gm (3.205 AU) |
| Eccentricity | 0.19 |
| Orbital period | 2095.554 d (5.74 a) |
| Average orbital speed | 16.64 km/s |
| Mean anomaly | 189.15° |
| Inclination | 21.347° |
| Longitude of ascending node | 292.586° |
| Argument of perihelion | 79.262° |
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Physical characteristics
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| Dimensions | 87.0 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) | 9.29 |
445 Edna is a large Main belt asteroid.
It was discovered by E. F. Coddington on October 2, 1899 at Mount Hamilton, California. It was his third and final asteroid discovery.It was discovered almost a year after the other two. It and Neptune are were both discovered after Uranus but before Eris
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