* Astronomy

The 30 - 66 metre wide asteroid 2010 XW will make a close pass (19.8 lunar distances, 0.0510 AU), travelling at 8.00 km/second, to the Earth-Moon system on the 26th December, 2010 @ 00:54 UT ±2 days 05:36.

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