(265) Anna
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Asteroid (265) Anna |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Major semi-axis | 2,419 AU |
| eccentricity | 0.268 |
| Perihelion - aphelion | 1.77 AU - 3.068 AU |
| Inclination of the orbit plane | 25.6 ° |
| Length of the ascending node | 335.6 ° |
| Argument of the periapsis | 251.7 ° |
| Time of passage of the perihelion | December 6, 2011 |
| Sidereal period | 3 a 279 d |
| Mean orbital velocity | 18.8 km / s |
| Physical Properties | |
| Medium diameter | 23 km |
| Albedo | 0.1045 |
| Rotation period | 11 h 41 min |
| Absolute brightness | 11.9 likes |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | February 25, 1887 |
| 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. | |
(265) Anna is an asteroid of the main asteroid belt , which on 25 February 1887 by Johann Palisa the Observatory of Wien was discovered.
Anna moves at a distance of 1.7723 ( perihelion ) to 3.0678 ( aphelion ) astronomical units in 3.7649 years on an eccentric orbit around the sun . The orbit is strongly inclined towards the ecliptic at 25.6303 ° , the orbit eccentricity is 0.2677.
Anna has a mean diameter of 23 kilometers. It has a relatively light surface with an albedo of 0.105.