21 Lutetia

作者：John van Vliet Greg Frieger

发布日期：

Lutetia is a large M-type asteroid in the Asteroid Belt about 100 km in diameter. It was visited by Rosetta at a distance of 3,162 km on 2010-Jul-10. which it briefly became the largest asteroid ever visited by a spacecraft until Dawn inserted itself into orbit around Vesta just a year later

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