11351 Leucus is a mid-sized Jupiter L4 trojan, approximately 40 km in diameter. It is a target of the Lucy mission, scheduled for a fly by in April 2028. The assumed D-type asteroid is an exceptionally slow rotator with a rotation period of 466 hours. It was discovered on 1997-Oct-12 by the Beijing Schmidt CCD Asteroid Program (SCAP) at Xinglong Station in the Chinese province of Hebei, and later named after the Achaean warrior Leucus from Greek mythology
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