187 Lamberta

From Wikipedia, the free encyclopedia
Jump to: navigation, search
187 Lamberta
Discovery
Discovered by J. Coggia, 1878
Designations
Minor planet category Main belt
Orbital characteristics
Aphelion 3.380 AU
Perihelion 2.084 AU
Semi-major axis 2.732 AU
Eccentricity 0.237
Orbital period 4.52 years
Inclination 10.60°
Physical characteristics
Dimensions 131.31 ± 1.08[1] km
Mass (1.80 ± 0.85) × 1018[1] kg
Mean density 1.51 ± 0.71[1] g/cm3
Rotation period 10.663 hours
Albedo 0.0647 ± 0.0135[2]
Spectral type C[2] (Tholen)
Absolute magnitude (H) 7.980[2]

187 Lamberta is a main-belt asteroid that was discovered by French (Corsican) astronomer Jérôme Eugène Coggia on April 11, 1878 and named after the astronomer Johann Heinrich Lambert. It was the second of Coggia's five asteroid discoveries.

The spectrum matches a classification of a C-type asteroid, which may mean it has a composition of primitive carbonaceous materials. It is a dark object as indicated by the low albedo and has an estimated size of about 131 km.[1]

References[edit]

  1. ^ a b c d Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  2. ^ a b c Pravec, P. et al. (May 2012), "Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations", Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan (1667), Bibcode:2012LPICo1667.6089P.  See Table 4.