Asteroid, 21 Lutetia
by Science Source
Title
Asteroid, 21 Lutetia
Artist
Science Source
Medium
Photograph - Photograph
Description
Image of the unusual asteroid Lutetia was taken by ESA's Rosetta probe during its closest approach in July 2010. Lutetia, which is about 100 kilometers across, seems to be a leftover fragment of the same original material that formed the Earth, Venus and Mercury. It is now part of the main asteroid belt, between the orbits of Mars and Jupiter, but its composition suggests that it was originally much closer to the Sun. 21 Lutetia is a large asteroid in the asteroid belt of an unusual spectral type. Lutetia has an irregular shape and is heavily cratered, with the largest impact crater reaching 45 km in diameter. The surface is geologically heterogeneous and is intersected by a system of grooves and scarps, which are thought to be fractures. It has a high average density, meaning that it is made of metal-rich rock. Release date November 11, 2011.
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June 14th, 2016
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