* Astronomy

The 600 - 1400 metre wide asteroid 2003 FC5 will make a close pass (56.0 lunar distances, 0.1440 AU), travelling at 11.83 km/second, to the Earth-Moon system on the 22nd February, 2011 @ 09:46 UT ±1 minute.

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