4971 Hoshinohiroba
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| Discovery and designation | |
|---|---|
| Discovered by | Fujii and Watanabe |
| Discovery site | Kitami |
| Discovery date | January 30, 1989 |
| Designations | |
| MPC designation | 4971 |
| Alternative names | 1989 BY |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 2.8092231 |
| Perihelion | 1.9582921 |
| Eccentricity | 0.1784852 |
| Orbital period | 1344.2856768 |
| Mean anomaly | 115.08152 |
| Inclination | 3.20494 |
| Longitude of ascending node | 104.79103 |
| Argument of perihelion | 342.50993 |
| Physical characteristics | |
| Absolute magnitude (H) | 13.1 |
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4971 Hoshinohiroba (1989 BY) is a main-belt asteroid discovered on January 30, 1989 by Fujii and Watanabe at Kitami.
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