(297) Caecilia
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Asteroid (297) Caecilia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 3,162 AU |
| eccentricity | 0.144 |
| Perihelion - aphelion | 2.706 AU - 3.618 AU |
| Inclination of the orbit plane | 7.6 ° |
| Length of the ascending node | 332.1 ° |
| Argument of the periapsis | 354.6 ° |
| Time of passage of the perihelion | February 18, 2009 |
| Sidereal period | 5 a 227 d |
| Mean orbital velocity | 16.7 km / s |
| Physical Properties | |
| Medium diameter | 39 km |
| Albedo | 0.1796 |
| Rotation period | 4 h 10 min |
| Absolute brightness | 9.5 likes |
| history | |
| Explorer | A. Charlois |
| Date of discovery | September 9, 1890 |
| 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. | |
(297) Caecilia is an asteroid of the outer main asteroid belt , which was discovered on September 9, 1890 by Auguste Charlois at the Observatory of Nice .
Caecilia moves from 2.7014 ( perihelion ) to 3.6218 ( aphelion ) astronomical units around the sun in 5.6216 years . The orbit is 7.5497 ° inclined to the ecliptic , the orbital eccentricity is 0.1456.
Caecilia has a diameter of 39 kilometers. The asteroid has a bright surface with an albedo of 0.180.