(4909) Couteau
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Asteroid (4909) Couteau |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.2735 AU |
| eccentricity | 0.2469 |
| Perihelion - aphelion | 1.7122 AU - 2.8349 AU |
| Inclination of the orbit plane | 2.409 ° |
| Sidereal period | 3,428 a |
| Mean orbital velocity | 19.75 km / s |
| Physical Properties | |
| Medium diameter | ? km |
| Albedo | ? |
| Rotation period | 5.054 h |
| Absolute brightness | 13.4 mag |
| Spectral class | SMASSII: S. |
| history | |
| Explorer | M. Laugier |
| Date of discovery | September 28, 1949 |
| Another name | 1949 SA 1 , 1949 SD, 1949 TJ |
| 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. | |
(4909) Couteau is an asteroid of the main belt , which was discovered on September 28, 1949 by the French astronomer Marguerite Laugier in Nice .
The asteroid bears the name of the French astronomer Paul Couteau .