21659 Fredholm
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| Discovery and designation | |
|---|---|
| Discovered by | P. G. Comba |
| Discovery site | Prescott |
| Discovery date | August 13, 1999 |
| Designations | |
| MPC designation | 21659 |
| Named after | Erik Ivar Fredholm |
| Alternative names | 1999 PR3 |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 2.9462440 |
| Perihelion | 2.2006450 |
| Eccentricity | 0.1448640 |
| Orbital period | 1507.8933821 |
| Mean anomaly | 71.47484 |
| Inclination | 4.89526 |
| Longitude of ascending node | 46.94032 |
| Argument of perihelion | 259.50574 |
| Physical characteristics | |
| Absolute magnitude (H) | 14.9 |
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21659 Fredholm (1999 PR3) is a main-belt asteroid discovered on August 13, 1999 by P. G. Comba at Prescott.
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