(440) Theodora
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 .