* Astronomy

The 32 - 71 metre wide asteroid 2006 HZ5 will make a close pass (63.9 lunar distances, 0.1642 AU), travelling at 8.65 km/second, to the Earth-Moon system on the 27th December, 2009.

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