* Astronomy

The 41 - 92 metre wide asteroid 2004 YD will make a close pass (50.0 lunar distances, 0.1284 AU), travelling at 8.45 km/second, to the Earth-Moon system on the 12th January, 2012 @ 14:03 UT ±2 days 19:02.

See more

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