* Astronomy

The 97 - 220 metre wide asteroid 2013 RB74 made a close pass (71.7 lunar distances, 0.1842 AU), travelling at 5.60 km/second, to the Earth-Moon system on the 9th October 2013 @ 17:16 UT ±00:15. 

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