* Astronomy

The 24 - 53 metre wide asteroid 2007 HC will make a close pass (70.6 lunar distances, 0.1813 AU), travelling at 11.34 km/second, to the Earth-Moon system on the 10th April, 2012 @ 06:57 UT ±07:25.

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