(440) Theodora
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Asteroid (440) Theodora |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Major semi-axis | 2.21 AU |
| eccentricity | 0.107 |
| Perihelion - aphelion | 1,974 AU - 2,446 AU |
| Inclination of the orbit plane | 1.6 ° |
| Length of the ascending node | 292.2 ° |
| Argument of the periapsis | 179.1 ° |
| Time of passage of the perihelion | March 30, 2011 |
| Sidereal period | 3 a 104 d |
| Mean orbital velocity | 20.0 km / s |
| Physical Properties | |
| Medium diameter | 15.7 km |
| Rotation period | 4 h 50 min |
| Absolute brightness | 11.5 likes |
| history | |
| Explorer | EF Coddington |
| Date of discovery | October 13, 1898 |
| Another name | 1898 EC |
| 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. | |
(440) Theodora is an asteroid of the main belt , which on 13 October 1898 by Edwin Coddington Foster was discovered in California (Mt. Hamilton).
The name of the asteroid is derived from a daughter of the founder Julius F. Stone .