* Astronomy

The 470 - 1000 metre wide asteroid 2002 PP6 will make a close pass (71.2 lunar distances, 0.1829 AU), travelling at 21.46 km/second, to the Earth-Moon system on the 21st January, 2010.

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