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History
21 Lutetia
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Lutetia is a large M-type asteroid in the main asteroid belt. It measures about 100 kilometers in diameter. It was discovered in 1852 by Hermann Goldschmidt, and is named after Lutetia, the Latin name of Paris.
Rosetta image of 21 Lutetia at closest approach
Rosetta image of 21 Lutetia at closest approach
M-type asteroid
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M-type asteroids are a spectral class of asteroids which appear to contain higher concentrations of metal phases than other asteroid classes, and are widely thought to be the source of iron meteorites.
Image of the M-type asteroid 21 Lutetia taken by the ESA Rosetta Spacecraft during a flyby in 2010
Image of the M-type asteroid 21 Lutetia taken by the ESA Rosetta Spacecraft during a flyby in 2010
An iron–nickel meteorite with characteristic Widmanstätten pattern.
An iron–nickel meteorite with characteristic Widmanstätten pattern.
A mesosiderite showing a mixture of metals and silicates.
A mesosiderite showing a mixture of metals and silicates.
An enstatite chondrite displaying a mix of metals and silicates (enstatite).
An enstatite chondrite displaying a mix of metals and silicates (enstatite).