(119) Althaea
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Asteroid (119) Althaea |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.582 AU |
| eccentricity | 0.082 |
| Perihelion - aphelion | 2.37 AU - 2.794 AU |
| Inclination of the orbit plane | 5.8 ° |
| Length of the ascending node | 203.7 ° |
| Argument of the periapsis | 170.9 ° |
| Time of passage of the perihelion | February 13, 2011 |
| Sidereal period | 4 a 54 d |
| Mean orbital velocity | 18.5 km / s |
| Physical Properties | |
| Medium diameter | 57 km |
| Albedo | 0.2306 |
| Rotation period | 11 h 29 min |
| Absolute brightness | 8.42 mag |
| Spectral class | S. |
| history | |
| Explorer | JC Watson |
| Date of discovery | April 3, 1872 |
| Another name | 1972 KO |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(119) Althea is an asteroid of the main belt , the American US from the on April 3, 1872 astronomer James Craig Watson was discovered.
The asteroid was named after Althaia , mother of the hero Meleager from Greek mythology .