* Astronomy

The 31 - 68 metre wide asteroid 2008 ON10 will make a close pass (58.8 Lunar Distances, 0.1511 AU), travelling at 3.82 km/s, to the Earth-Moon system on the 18th December, 2013 @ 07:29 UT ±2 days 14:02.

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