145 Adeona
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Discovery[1] and designation
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| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | June 3, 1875 |
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Designations
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| Alternative names[1] | |
| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 457.677 Gm (3.059 AU) |
| Perihelion | 341.958 Gm (2.286 AU) |
| Semi-major axis | 399.817 Gm (2.673 AU) |
| Eccentricity | 0.145 |
| Orbital period | 1595.888 d (4.37 a) |
| Average orbital speed | 18.12 km/s |
| Mean anomaly | 163.291° |
| Inclination | 12.637° |
| Longitude of ascending node | 77.454° |
| Argument of perihelion | 44.899° |
| Dimensions | 151.1 km |
| Mass | 3.6×1018 kg |
| Mean density | 2.0 g/cm³ |
| Equatorial surface gravity | 0.0422 m/s² |
| Equatorial escape velocity | 0.0799 km/s |
| Sidereal rotation period |
? d |
| Axial tilt | ?° |
| Pole ecliptic latitude | ? |
| Pole ecliptic longitude | ? |
| Geometric albedo | 0.10 |
| Temperature | ~170 K |
| Spectral type | C |
| Absolute magnitude | 8.13 |
145 Adeona is a rather large Main belt asteroid. Its surface is very dark, and composition likely of primitive carbonaceous material.
The Adeona family of asteroids is named after it.
It was discovered by C. H. F. Peters on June 3, 1875 in Clinton, New York and named after Abeona, a protector of children in Roman mythology.
Adeona has been seen occulting a star once (July 9, 2002).
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