| Orbital characteristics 1 | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.739 AU |
| Perihelion distance | 2.376 AU |
| Aphelion distance | 3.102 AU |
| Orbital period | 4.53 years |
| Inclination | 6.90° |
| Eccentricity | 0.133 |
| Physical characteristics 1 | |
| Diameter | 128.4 km |
| Rotation period 3 | 19 hours |
| Spectral class | C |
| Abs. magnitude | 8.26 |
| Albedo 4 | 0.053 |
| History 2 | |
| Discoverer | C. H. F. Peters, 1879 |
200 Dynamene is a large and very dark main-belt asteroid. It probably has a primitive composition similar to the carbonaceous chondrite meteorites.
It was discovered by C. H. F. Peters on July 27, 1879, in Clinton, New York. The name derives from Dynamene, one of the fifty Nereids in Greek mythology.
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