* Astronomy

The 360 - 800 metre wide asteroid 2004 JX20 will make a close pass (58.1 lunar distances, 0.1494 AU), travelling at 7.37 km/second, to the Earth-Moon system on the 20th May, 2010.

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