* Astronomy

The 19 - 43 metre wide asteroid 2014 DF80 made a close pass (27.9 lunar distances, 0.0717 AU), travelling at 4.09 km/second, to the Earth-Moon system on the 1st March 2014 @ 00:50 UT ±00:38. 

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