(556) Phyllis
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Asteroid (556) Phyllis |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Asteroid family | Vesta family |
| Major semi-axis | 2,465 AU |
| eccentricity | 0.103 |
| Perihelion - aphelion | 2.211 AU - 2.719 AU |
| Inclination of the orbit plane | 5.2 ° |
| Length of the ascending node | 286.2 ° |
| Argument of the periapsis | 178 ° |
| Time of passage of the perihelion | June 25, 2009 |
| Sidereal period | 3 a 318 d |
| Mean orbital velocity | 18.9 km / s |
| Physical Properties | |
| Medium diameter | 37.82 km |
| Albedo | 0.1853 |
| Rotation period | 4 h 18 min |
| Absolute brightness | 9.56 likes |
| Spectral class | S. |
| history | |
| Explorer | Paul Goetz |
| Date of discovery | January 8, 1905 |
| Another name | 1905 PW, 1950 QW |
| 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. | |
(556) Phyllis is an asteroid of the main belt that was discovered on January 8, 1905 by the German astronomer Paul Götz in Heidelberg .
The asteroid was named after the princess Phyllis from Greek mythology.