(119) Althaea
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 .