The 13 - 29 metre wide asteroid 2005 BU will make a close pass (20.1 lunar distances, 0.0517 AU), travelling at 11.24 km/second, to the Earth-Moon system on the 14th January, 2012 @ 05:17 UT ±00:41. See moreThe Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).