(489) Comacina
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Asteroid (489) Comacina |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 3.15 AU |
| eccentricity | 0.043 |
| Perihelion - aphelion | 3.014 AU - 3.286 AU |
| Inclination of the orbit plane | 13 ° |
| Length of the ascending node | 166.9 ° |
| Argument of the periapsis | 12.3 ° |
| Time of passage of the perihelion | March 11, 2012 |
| Sidereal period | 5 a 216 d |
| Mean orbital velocity | 16.8 km / s |
| Physical Properties | |
| Medium diameter | approx. 139 km |
| Albedo | 0.04 |
| Rotation period | 9.0 h |
| Absolute brightness | 8.3 mag |
| Spectral class | C. |
| history | |
| Explorer | Luigi Carnera |
| Date of discovery | September 2, 1902 |
| Another name | 1902 JM, A911 DA |
| 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. | |
(489) Comacina is an asteroid of the main belt , which on 2 September 1902 by Italian astronomer Luigi Carnera was discovered.
The asteroid is named after Isola Comacina in Lake Como , Italy .