* Astronomy

The 72 - 160 metre wide asteroid 2010 XK will make a close pass (39.5 lunar distances, 0.1016 AU), travelling at 14.01 km/second, to the Earth-Moon system on the 2nd June, 2011 @ 21:30 UT ±12:50.

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).