* Astronomy

The 5 - 11 metre wide asteroid 2007 HV4 will make a close pass (4.8 lunar distances, 0.0122 AU), travelling at 8.98 km/second, to the Earth-Moon system on the 19th April, 2012 @ 03:57 UT ±1 day 17:57.

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