(621) Werdandi
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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.