2908 Shimoyama
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| Discovery and designation | |
|---|---|
| Discovered by | Toshimasa Furuta |
| Discovery site | Tokai |
| Discovery date | November 18, 1981 |
| Designations | |
| MPC designation | 2908 |
| Alternative names | 1981 WA |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 3.4323600 |
| Perihelion | 2.5263630 |
| Eccentricity | 0.1520455 |
| Orbital period | 1878.3790278 |
| Mean anomaly | 65.26283 |
| Inclination | 13.36873 |
| Longitude of ascending node | 233.41695 |
| Argument of perihelion | 155.07269 |
| Physical characteristics | |
| Geometric albedo | 0.0514 |
| Absolute magnitude (H) | 11.50 |
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2908 Shimoyama (1981 WA) is a main-belt asteroid discovered on November 18, 1981 by Toshimasa Furuta at Tokai.
Nongravitation and physical parameters
Diameter 29.38 km
Albedo 0.0514
Orbit data
Eccentricity (e) 0.1532
Semi-major Axis (a) 2.9763
Apogee (Aphelion) Q 3.4322
Perigee (Perihelion) q 2.5204
i (deg) 13.3768
M (degrees) 295.245
Peri (degrees) 155.229
Node (degrees) 233.39
n (deg/d) 0.192
References
External links
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