(621) Werdandi
Asteroid (621) Werdandi |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Asteroid family | Themis family |
Major semi-axis | 3.129 AU |
eccentricity | 0.14 |
Perihelion - aphelion | 2.691 AU - 3.567 AU |
Inclination of the orbit plane | 2.3 ° |
Length of the ascending node | 67.1 ° |
Argument of the periapsis | 31.2 ° |
Time of passage of the perihelion | December 19, 2011 |
Sidereal period | 5 a 195 d |
Mean orbital velocity | 16.8 km / s |
Physical Properties | |
Medium diameter | (27.2 ± 1.5) km |
Albedo | 0.15 |
Rotation period | 9 h 24 min |
Absolute brightness | 10.5 mag |
history | |
Explorer | August Kopff |
Date of discovery | November 11, 1906 |
Another name | 1906 WJ |
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. |
(621) Werdandi is an asteroid of the main belt that was discovered by August Kopff in Heidelberg on November 11, 1906 .
The asteroid was named after Verdandi , one of the three Norns in Norse mythology.