* Astronomy

The 22 - 50 metre wide asteroid 2004 XG29 will make a close pass (38.6 lunar distances, 0.0991 AU), travelling at 8.35 km/second, to the Earth-Moon system on the 25th December, 2009.

See more

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