(281) Lucretia
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Asteroid (281) Lucretia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Major semi-axis | 2.187 AU |
| eccentricity | 0.132 |
| Perihelion - aphelion | 1.897 AU - 2.477 AU |
| Inclination of the orbit plane | 5.3 ° |
| Length of the ascending node | 31.4 ° |
| Argument of the periapsis | 16.7 ° |
| Time of passage of the perihelion | November 21, 2011 |
| Sidereal period | 3 a 86 d |
| Mean orbital velocity | 20.1 km / s |
| Physical Properties | |
| Medium diameter | 12 km |
| Albedo | 0.1987 |
| Rotation period | 4 h 21 min |
| Absolute brightness | 12.02 mag |
| Spectral class | SU |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | October 31, 1888 |
| 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. | |
(281) Lucretia is an asteroid of the inner main asteroid belt , which on 31 October 1888 by Johann Palisa the Observatory of Wien was discovered. It was named after the astronomer Caroline Herschel .
Lucretia moves at a distance of 1.8981 ( perihelion ) to 2.4776 ( aphelion ) astronomical units in 3.2362 years around the sun . The orbit is inclined 5.3083 ° to the ecliptic , the orbital eccentricity is 0.1324.
Lucretia is only 12 kilometers in diameter. It has a light, silicate-rich surface with an albedo of 0.199. It rotates around its own axis in around 4 hours and 21 minutes.