| Orbital characteristics 1 | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.732 AU |
| Perihelion distance | 2.084 AU |
| Aphelion distance | 3.380 AU |
| Orbital period | 4.52 years |
| Inclination | 10.60° |
| Eccentricity | 0.237 |
| Physical characteristics 1 | |
| Diameter | 131.2 km |
| Rotation period | 10.663 hours |
| Spectral class | C |
| Abs. magnitude | 8.16 |
| Albedo 4 | 0.056 |
| History 2 | |
| Discoverer | J. Coggia, 1878 |
187 Lamberta is a large and very dark main-belt asteroid. It has a composition of primitive carbonaceous materials.
It was discovered by J. Coggia on April 11, 1878. It was the second of his five asteroid discoveries. It is named after the astronomer Johann Heinrich Lambert.
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