75 Eurydike
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Discovery
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| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | September 22, 1862 |
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Designations
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| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 521.874 Gm (3.489 AU) |
| Perihelion | 278.028 Gm (1.858 AU) |
| Semi-major axis | 399.951 Gm (2.674 AU) |
| Eccentricity | 0.305 |
| Orbital period | 1596.687 d (4.37 a) |
| Average orbital speed | 17.79 km/s |
| Mean anomaly | 26.318° |
| Inclination | 5.002° |
| Longitude of ascending node | 359.481° |
| Argument of perihelion | 339.566° |
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Physical characteristics
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| Dimensions | 55.7 km |
| Mass | 1.8×1017 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0156 m/s² |
| Escape velocity | 0.0294 km/s |
| Rotation period | ? d |
| Albedo | 0.149 [1] |
| Temperature | ~170 K |
| Spectral type | M |
| Absolute magnitude | 8.96 |
75 Eurydike (ew-rid'-i-kee, IPA: /jʊˈrɪdɨki/) is a main belt asteroid. It has an M-type spectrum and a relatively high albedo and may be rich in nickel-iron. Eurydike was discovered by C. H. F. Peters on September 22, 1862. It was second of his numerous asteroid discoveries. It is named after Eurydice, the wife of Orpheus.
[edit] References
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