* Astronomy

The 300 - 670 metre wide asteroid 2008 OO will make a close pass (70.9 lunar distances, 0.1822 AU), travelling at 25.57 km/second, to the Earth-Moon system on the 18th July, 2011 @ 11:17 UT ±18:02.

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