818 Kapteynia
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | February 21, 1916 |
| Designations | |
| Alternative names | 1916 YZ |
| Orbital characteristics | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Aphelion | 3.477 AU |
| Perihelion | 2.857 AU |
| Semi-major axis | 3.167 AU |
| Eccentricity | 0.098 |
| Orbital period | 5.637 a |
| Mean anomaly | 56.643° |
| Inclination | 15.680° |
| Longitude of ascending node | 71.032° |
| Argument of perihelion | 295.591° |
818 Kapteynia is a minor planet orbiting the Sun. This asteroid is named for the Dutch astronomer Jacobus Kapteyn.
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