(222) Lucia
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Asteroid (222) Lucia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Themis family |
| Major semi-axis | 3.135 AU |
| eccentricity | 0.138 |
| Perihelion - aphelion | 2.703 AU - 3.567 AU |
| Inclination of the orbit plane | 2.2 ° |
| Length of the ascending node | 80.3 ° |
| Argument of the periapsis | 179.1 ° |
| Time of passage of the perihelion | February 25, 2011 |
| Sidereal period | 5 a 201 d |
| Mean orbital velocity | 16.7 km / s |
| Physical Properties | |
| Medium diameter | 55 km |
| Albedo | 0.13 |
| Rotation period | 7.8 h |
| Absolute brightness | 9.1 mag |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | February 9, 1882 |
| Another name | A899 EC, A919 AB |
| 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. | |
(222) Lucia is an asteroid of the outer main asteroid belt , which on February 9, 1882 by John Palisa at the observatory of Vienna was discovered.
The asteroid was named after the daughter of the Austrian polar explorer Johann Nepomuk Graf Wilczek .
Lucia moves around the Sun at a distance of 2.7 ( perihelion ) to 3.6 ( aphelion ) astronomical units in 5.6 years . The orbit is inclined 2.2 ° to the ecliptic , the orbit eccentricity is 0.14.
Lucia has a diameter of 55 kilometers. It has a relatively light surface with an albedo of 0.13. It rotates on its own axis in just under 8 hours.