79 Eurynome
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| Discovery | |
|---|---|
| Discovered by | James Craig Watson |
| Discovery date | September 14, 1863 |
| Designations | |
| Named after | Eurynome |
| Alternative names | |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 435.949 Gm (2.914 AU) |
| Perihelion | 295.538 Gm (1.976 AU) |
| Semi-major axis | 365.743 Gm (2.445 AU) |
| Eccentricity | 0.192 |
| Orbital period | 1396.288 d (3.82 a) |
| Average orbital speed | 18.87 km/s |
| Mean anomaly | 149.498° |
| Inclination | 4.622° |
| Longitude of ascending node | 206.802° |
| Argument of perihelion | 200.384° |
| Physical characteristics | |
| Dimensions | 66.5 km |
| Mass | 3.1×1017 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0186 m/s² |
| Escape velocity | 0.0352 km/s |
| Rotation period | ? d |
| Albedo | 0.262 (geometric)[1] |
| Temperature | ~178 K |
| Spectral type | S |
| Apparent magnitude | 9.35 (brightest) |
| Absolute magnitude (H) | 7.96 |
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79 Eurynome (/jʊˈrɪnəmiː/ ew-RIN-ə-mee) is a quite large and bright main-belt asteroid composed of silicate rock. Eurynome was discovered by J. C. Watson on September 14, 1863. It was his first asteroid discovery. It is named after one of the many Eurynomes in Greek mythology.
References
External links
- Orbital simulation from JPL (Java)
- Ephemeris
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