* Astronomy

The 450 - 1000 metre wide asteroid 2000 EF104 will make a close pass (71.4 lunar distances, 0.1834 AU), travelling at 13.23 km/second, to the Earth-Moon system on the 14th February, 2011 @ 15:52 UT ±00:01.

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