4678 Ninian
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| Discovery and designation | |
|---|---|
| Discovered by | R. H. McNaught |
| Discovery site | Siding Spring |
| Discovery date | September 24, 1990 |
| Designations | |
| MPC designation | 4678 |
| Alternative names | 1990 SS4 |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 2.7495119 |
| Perihelion | 1.7804525 |
| Eccentricity | 0.2139221 |
| Orbital period | 1245.0752949 |
| Mean anomaly | 57.80671 |
| Inclination | 3.74171 |
| Longitude of ascending node | 30.52826 |
| Argument of perihelion | 322.98698 |
| Physical characteristics | |
| Absolute magnitude (H) | 14.0 |
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4678 Ninian (1990 SS4) is a main-belt asteroid discovered on September 24, 1990 by R. H. McNaught at Siding Spring.
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