(6057) Robbia

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( 6057 ) Robbia is an asteroid of the outer main belt, which was discovered on 16 October 1977 by the Dutch astronomer Cornelis Johannes van Houten couple and Ingrid van Houten - Groeneveld. The discovery happened in the third Trojan survey, in which the 120 - cm Oschin Schmidt telescope of the Palomar Observatory recorded by Tom Gehrels field plates at Leiden University were screened, 17 years after the beginning of the Palomar - Leiden Surveys.

The mean diameter of the asteroid was determined with 27.43 km ( ± 1.9 ). He has an albedo of 0.0852 (± 0.013) a rather dark surface. After FORMING classification (Small Main -Belt Asteroid Spectroscopic Survey ) was also assumed in ( 6057 ) Robbia of a dark surface with a spectroscopic investigation of Gianluca Masi, Sergio Foglia and Richard P. Binzel, it might be so, roughly speaking, be a C- asteroids.

The asteroid belongs to the Cybele group, a family of asteroids beyond the Hecuba gap, which forms the outer boundary of the middle main belt. The orbits of the members are in 7:4 resonance to the planet Jupiter, which they are stabilized. The group was named after the asteroid (65 ) Cybele.

( 6057 ) Robbia was named on 5 March 1996 by the sculptor Luca della Robbia, who belonged to Lorenzo Ghiberti and Donatello among the founders of the early Renaissance in Florence. According to Lorenzo Ghiberti, the asteroid of the inner main belt ( 6054 ) Ghiberti is named after Donatello the asteroid main belt of the middle ( 6056 ) Donatello.