156 Xanthippe
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Discovery[1] and designation
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| Discovered by | ? |
| Discovery date | mmmm d, yyyy |
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Designations
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| Minor planet category |
Main belt |
| Epoch August 27, 2011 (JD 2455800.5) | |
| Aphelion | 500.365 Gm (3.345 AU) |
| Perihelion | 315.932 Gm (2.112 AU) |
| Semi-major axis | 408.149 Gm (2.728 AU) |
| Eccentricity | 0.226 |
| Orbital period | 1646.030 d (4.51 a) |
| Average orbital speed | 17.80 km/s |
| Mean anomaly | 228.962° |
| Inclination | 9.775° |
| Longitude of ascending node | 241.861° |
| Dimensions | 121.0 km |
| Mass | 1.9×1018 kg |
| Mean density | 2.0 g/cm³ |
| Equatorial surface gravity | 0.0338 m/s² |
| Equatorial escape velocity | 0.0640 km/s |
| Sidereal rotation period |
? d |
| Axial tilt | ?° |
| Pole ecliptic longitude | ? |
| Geometric albedo | 0.10 |
| Temperature | ~168 K |
| Spectral type | C |
| Absolute magnitude (H) | 8.64 |
156 Xanthippe is a large main-belt asteroid. It has a carbonaceous composition and an extremely dark surface. It is named after Xanthippe, the wife of Socrates.
It was discovered by J. Palisa on November 22, 1875.
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This article about a C-type asteroid native to the main belt is a stub. You can help Wikipedia by expanding it. |
