4638 Estens
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| Discovery and designation | |
|---|---|
| Discovered by | McNaught, R. H. |
| Discovery site | Siding Spring |
| Discovery date | March 2, 1989 |
| Designations | |
| MPC designation | 4638 |
| Alternative names | 1989 EG |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 2.3907757 |
| Perihelion | 1.9961901 |
| Eccentricity | 0.0899450 |
| Orbital period | 1186.5875657 |
| Mean anomaly | 315.68024 |
| Inclination | 3.50897 |
| Longitude of ascending node | 277.39953 |
| Argument of perihelion | 259.36087 |
| Physical characteristics | |
| Absolute magnitude (H) | 14.0 |
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4638 Estens (1989 EG) is a main-belt asteroid discovered on March 2, 1989 by McNaught, R. H. at Siding Spring.
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